The compound with a formula of C9H12 and an 1H NMR spectrum of 1.0 (t, 3H), 1.7 (sext, 2H), 2.6 (t, 2H), 7.2 (m, 5H) is likely to be a cyclic alkane, such as cyclononane.
b. The compound with a formula of C9H12 and an 1H NMR spectrum of 0.95 (d, 6H), 1.7 (m, ninelines, 1H), 2.5 (s, 1H), 3.42 (d, 2H) is likely to be an isomer of cyclohexene, such as cyclohexene itself or any of its derivatives like cyclohexene oxide.
What is a compound?A chemical compound is described as a chemical substance composed of many identical molecules containing atoms from more than one chemical element held together by chemical bonds.
In conclusion, compounds consists of tow atoms or ion.
Learn more about compounds at: https://brainly.com/question/26487468
#SPJ1
complete each statement by dragging the proper word into the appropriate blank and then place each sentence in order from the strongest to weakest chemical bond.
1. Bonds formed by equal sharing of a pair of electrons are called nonpolar covalent bonds because there is a uniform charge across the molecule along all axes.
2. Non-uniform or unequal sharing of a pair of electrons produces a polar covalent bond where a relative charge distribution is seen across the molecule.
3. Bonds formed when two atoms or compounds respectively donate and receive electrons are called ionic bonds and readily dissociate in water.
4. Attractions between polarized molecules (intermolecular bonding) are called hydrogen bonds and can also form between polarized regions of the same molecule (intramolecular bonding).
5. Attractions between adjacent atoms due to constantly fluctuating electron clouds are called Van der Waals forces.
Van der Waals forces are the weak intermolecular forces that exist between molecules. They are the result of the fluctuating dipoles created by the movement of electrons within a molecule. These forces can cause the molecules to attract or repel one another, leading to the formation of temporary bonds.
The strength of Van der Waals forces is much weaker than other forces like covalent or ionic bonds, but they play a significant role in determining the properties of liquids and gases. For example, the weak nature of these forces means that liquids have a lower boiling point compared to solids.
Van der Waals forces are also responsible for the phenomenon of adsorption, where molecules stick to a surface, and for the formation of supramolecular structures like micelles, vesicles, and liquid crystals. These forces are also crucial in determining the stability of large biomolecules like proteins and DNA.
To learn more about Van der Waals forces visit here:
brainly.com/question/11457190
#SPJ4
Complete Question:
Complete each statement by dragging the proper word into the appropriate blank and then place each sentence in order from the strongest to weakest chemical bond.
1. Bonds formed by equal sharing of a pair of electrons are called ______ covalent bonds because there is a uniform charge across the molecule along all axes.
2. Non-uniform or unequal sharing of a pair of electrons produces a _____ covalent bond where a relative charge distribution is seen across the molecule.
3. Bonds formed when two atoms or compounds respectively donate and receive electrons are called _______ bonds and readily dissociate in water.
4. Attractions between polarized molecules (intermolecular bonding) are called ______ bonds and can also form between polarized regions of the same molecule (intramolecular bonding).
5. Attractions between adjacent atoms due to constantly fluctuating electron clouds are called ______ forces.
Polymers are assembled from smaller monomers in a process called dehydration synthesis. Hydrolysis breaks polymers back down to monomers. State whether each of the following related to dehydration (D) or hydrolysis (H). _____ 1. Water is used to break bonds. _____ 2. Produces water as a by-product. _____ 3. Joins amino acids to form a protein. _____ 4. Breaks up polymers, forming monomers. _____ 5. Connects monomers to form a polymer. _____ 6. Nucleic acid breaks up to form nucleotides. _____ 7. Occurs when polysaccharides are digested to form monosaccharides. _____ 8. Water breaks up, forming -Hand-OH groups on separate monomers
1.Water is used to break bond is hydrolysis
2. Produces water as byproduct in dehydration
3. Dehydration
4.Hydrolysis
5. Dehydration
6. Hydrolysis
7. Hydrolysis
8. hydrolysis
Hydrolysis is a process in which water is used to break the bond.hydrolysis breaks down polymers To form monomers In chemistry and biology, hydrolysis refers to a twofold decomposition reaction in which water participates. Therefore, the hydrolysis reaction may be described by the reversible chemical equation[tex]AB + HOH \leftrightarrow AH + BOH[/tex] If a substance has the chemical formula AB, where A and B are atoms or groups, and water has the chemical formula HOH. Other than water, the reactants in a hydrolysis reaction can be neutral molecules, as they are in the majority of cases when organic compounds are involved, or ionic molecules, as they are in the cases of salts, acids, and bases.
Dehydration is the loss of body fluids which impairs body function . It forms polymer by linking monomer and water is always a by product .
Learn more about Hydrolysis
brainly.com/question/24213349
#SPJ4
Select the correct answer. When an atom in a reactant gains electrons, what happens to its oxidation number? A. Its oxidation number decreases. B. Its oxidation number doubles. C. Its oxidation number increases. D. Its oxidation number increases by one. E. Its oxidation number stays the same.
When an atom in a reactant gains electrons, its oxidation number increases. Option C.
What is oxidation?Oxidation is defined in several ways:
It is the addition of oxygen or the removal of hydrogenIt is an increase in the oxidation number of atomsIt is a gain of electronsIt is an addition of an electronegative element or the removal of an electropositive element.In other words, a gain of electrons also translates to an increase in the oxidation number of atoms.
More on oxidation can be found here: https://brainly.com/question/13182308
#SPJ1
a student picked up a sealed baggie filled with ice cubes from the nurse. The ice completely melted before class ended. If the baggie remained sealed, what happened to the mass of the water molecules inside the bag?
A student picked up a sealed baggie filled with ice cubes from the nurse. The ice completely melted before class ended. If the baggie remained sealed, the mass of the water should remain the same before and after it turns into ice.
What happens to the mass of ice when it melts ?There are no particles destroyed or added. Furthermore, the particles' size and shape remain constant. Contrary to popular belief, matter and mass or weight are conserved to stay the same during phase change.
The nurse handed a student a sealed baggie filled with ice cubes. Before class ended, the ice had completely melted. If the baggie is still sealed, the mass of the water should be the same before and after it freezes.
Thus, the mass of the water should remain the same before and after it turns into ice.
To learn more about the mass of ice, follow the link;
https://brainly.com/question/15959704
#SPJ1
calculate the amount of heat needed to boil of ethanol (), beginning from a temperature of . round your answer to significant digits. also, be sure your answer contains a unit symbol.
To calculate the amount of heat needed to boil of ethanol (CH3CH2OH), beginning from a temperature of, you can use the formula:
Q = m * c * ∆T where m is the mass of ethanol, c is the specific heat capacity of ethanol, and ∆T is the change in temperature.
So, for your example, the amount of heat needed to boil of ethanol is: Q = m * c * ∆T Q = ( ) * (2.44 J/g°C) * ( - ) Q = J
Be sure to include the unit symbol "J" when answering this question.
Ethanol boiling is the process by which ethanol, also known as ethyl alcohol, is heated to a vapor state. This occurs at a temperature of 78.4°C (173.2°F).
Ethanol is a compound with a relatively low boiling point, so it evaporates relatively easily when heated. This gives ethanol many of its useful properties, such as its use as a solvent, fuel, antiseptic and in the production of alcoholic beverages.
Learn more about Ethanol
https://brainly.com/question/20814130
#SPJ4
hydrofluoric acid and water react to form fluoride anion and hydronium cation, like this: (aq)(l)(aq)(aq) at a certain temperature, a chemist finds that a reaction vessel containing an aqueous solution of hydrofluoric acid, water, fluoride anion, and hydronium cation at equilibrium has the following composition:
equilibrium constant can be defined as the ratio between the amount of reactant and the amount of product which is used to determine chemical behaviour. The value of equilibrium constant of the reaction is [tex]1.095*10^{-4}[/tex].
Concentration= [tex]n/v[/tex] where, n is moles of the compound and v is the volume of the solution in litres.
moles of HF= [tex]1.62g/20g/mol=0.081mol[/tex]
volume of the solution in the vessel= V= 5.6L
[HF]= [tex]0.081mol/5.6L=0.01446M[/tex]
moles of F- = [tex]0.163g/19g/mol= 0.008579mol[/tex]
volume of the solution in the vessel, V= 5.6L
[F-]= [tex]0.008579mol/5.6L=0.001532M[/tex]
Moles of H3O+ = [tex]0.110g/19g/mol= 0.05789mol[/tex]
Volume of the solution in the vessel, V= 5.6L
[H3O+]= [tex]0.05789mol/5.6L= 0.001034M[/tex]
An equilibrium expression is given as:
[tex]Kc= [F-][H3O+]/[HF]= 0.001532*0.001034M/0.01446M[/tex]
Kc = [tex]1.095*10^{-4}[/tex]
Go through the given link below to know more about equilibrium constant:-
https://brainly.com/question/3159758
#SPJ4
solve for the ifnal pressssure in terms of original pressures of helium and neon assume temperature is constnat
To solve for the final pressure in terms of the original pressures of helium and neon, assuming temperature is constant, you can use the ideal gas law. The equation is:
P1V1/T1 = P2V2/T2
Where P1 and V1 are the original pressure and volume of the gas, respectively, and P2 and V2 are the final pressure and volume of the gas, respectively. Since T1 and T2 are assumed to be constant, the equation can be simplified to:
P2 = P1V1/V2
The pressure of helium is affected by temperature and volume. At a given temperature, the pressure of helium increases as its volume decreases. This is because as the volume of helium decreases, more of the molecules are pushed closer together, forcing them to move faster and collide more often.
Learn more about pressures of helium
https://brainly.com/question/28809008
#SPJ4
An empty container with a volume of 150.0 cm3 is weighed and found to have a mass of 72.5 g. The container is filled with a liquid and reweighed. The mass of the container and the liquid is 194.37 g. Determine the density of the liquid to the appropriate number of significant figures. (1 cm3 = 1 mL)
The density of the liquid is 0.8125 g/mL.
What is density?Density is the mass of a material substance per unit volume. d = M/V, where d is density, M is mass, and V is volume, is the formula for density. Grams per cubic centimeter are a typical unit of measurement for density. For instance, while Earth has a density of 5.51 grams per cubic centimeter, water has a density of 1 gram per cubic centimeter. Another way to state density is in kilograms per cubic meter (in meter-kilogram-second or SI units). For instance, air weighs 1.2 pounds per cubic meter. In textbooks and manuals, the densities of typical solids, liquids, and gases are stated. The mass of a body can easily be determined from its volume or vice versa using a density.
mass of liquid = (mass of container and liquid) - (mass of empty container)
mass of liquid = 194.37 g - 72.5 g = 121.87 g
The volume of the liquid is equal to the volume of the container, which is 150.0 ml. (1 cm3 = 1 mL)
The density of the liquid is the mass of the liquid divided by the volume of the liquid:
density = mass/volume
density = 121.87 g / 150.0 ml
density = 0.81 g/ml
To know more about density, check out:
https://brainly.com/question/1354972
#SPJ1
if na2so4 is added to a saturated aqueous solution of ag2so4, the solubility of ag2so4 will ______ . group of answer choices increase decrease stay the same double
The correct option is B, if na2so4 is added to a saturated aqueous solution of ag2so4, the solubility of ag2so4 will decrease .
Solubility is a term used to describe the ability of a substance to dissolve in a solvent, such as water, to form a homogeneous solution. The solubility of a substance is determined by several factors, including temperature, pressure, and the type and concentration of the solvent. Some substances have a high solubility and can dissolve in large quantities, while others have low solubility and can only dissolve in small amounts. The solubility of a substance can also be influenced by its chemical structure, and how it interacts with the solvent.
The solubility of a substance can be useful in a variety of applications, such as in the pharmaceutical industry, where the solubility of a drug can impact its effectiveness. Solubility can also be important in the food and beverage industry, as the solubility of ingredients can affect the texture and taste of a product. Understanding solubility can also help in environmental issues, as solubility can determine the ability of pollutants to dissolve in water and affect aquatic life.
To learn more about Solubility visit here:
brainly.com/question/28170449
#SPJ4
Draw the major organic product ol the following sequence of reactions Show stereochemistry In the product: HSCe OH TsCl, pyridine NaCN
Treatment of an alcohol with TsCl in pyridine gives retention of stereochemistry.The alcohols are treated with the TsCl in presence of weak bases such as pyridine. This results in the sulfonate esters.
Alcohols can be transformed to alkyl Tosylate by reacting with p-toluene sulfonyl chloride (TsCl) and pyridine. In this reaction, alcohol, which is a poor leaving group, is substituted by Tosylate, which is a good leaving group.sCl or p-toluenesulfonyl chloride is a reagent that converts the hydroxyl group . The alcohols are treated with the TsCl in presence of weak bases such as pyridine. This results in the sulfonate esters. The secondary alcohol given in the question reacts with TsCl or p-toluenesulfonyl chloride in presence of weak base pyridine .this reaction convert group into the group. that is the tosyl group is treated with the acetate ion in presence of tetra butyl amine in DMF. This reaction replaces the tosyl group with acetate ion. Tosyl group is a good leaving group. It tends to leave the molecule .thus in the presence of an incoming group acetate ion it is removed from the molecules.
Learn more about stereochemistry here:
https://brainly.com/question/11487278
#SPJ4
a phase change caused by the__________of heat will result in a(n)___ of the order of the substance. select all that apply.
A phase change caused by the addition or removal of heat will result in a change of the state or phase of the substance.
Whether heat is being added to or removed from the substance is indicated by the phrases "addition" and "removal."
A phase shift, such as melting or boiling, can happen when heat is applied to a substance, changing it from a solid to a liquid or from a liquid to a gas, respectively. Endothermic processes are what are used to describe this kind of phase change.
A phase shift, such as freezing or condensation, can happen when heat is removed from a substance, changing it from a liquid to a solid or from a gas to a liquid, respectively. An exothermic process is the term used to describe this kind of phase transition.
In conclusion, a phase change brought on by the addition of heat will cause the substance to move from a more energetic state (such as solid to liquid) to a less energetic state, and a phase change brought on by the removal of heat will produce the opposite effect (e.g. liquid to solid).
Learn more about phase change:
brainly.com/question/30270780
#SPJ4
a phase change caused by the __________of heat will result in a(n)___ of the order of the substance. select all that apply.
A. removal of heat
B. phase change
C. liquid becomes a solid
D. None of the above
Which of the following cleaves the pre-miRNA at the level of the loop, yielding a 22-nt, double-stranded RNA molecule?
DGCR8
Drosha
RISC
Dicer
Dicer cleaves the pre-miRNA at the level of the loop, yielding a 22-nt, double-stranded RNA molecule.
The pre-miRNA molecule is a precursor to the microRNA (miRNA), which plays an important role in gene regulation. The process of producing mature miRNA from pre-miRNA involves cleavage at specific sites, and this cleavage is facilitated by specific enzymes. DGCR8, Drosha, and RISC are all involved in the processing of pre-miRNA, but it is Dicer that performs the final step of cleaving the pre-miRNA at the level of the loop, yielding a 22-nt double-stranded RNA molecule. This double-stranded RNA molecule is then loaded into the RISC complex, which recognizes and cleaves specific target mRNAs, leading to regulation of gene expression.
Learn more about RNA here: brainly.com/question/25979866
#SPJ4
give a molecular formula for your product if it contains no oxygens. give the molecular formulas if your product contains one and two oxygens (some may not be possible).
The index of hydrogen deficiency (IHD) is a measure of the number of unsaturated bonds in a molecule. It can be calculated by subtracting the number of hydrogen atoms from 2 times the number of carbon atoms, and then dividing by 2.
[tex]C_{6}H_{6}[/tex] (no oxygen)
IHD = [tex]\frac{(2*6)-6}{2}[/tex] = 3
This means that the molecule contains 3 unsaturated bonds, which can form 3 aromatic rings.
[tex]C_{7}H_{6}O[/tex] (one oxygen)
IHD = [tex]\frac{(2*7)-6-2}{2}[/tex] = 3
This means that the molecule contains 3 unsaturated bonds, which can form 2 aromatic rings.
[tex]C_{8}H_{7}O_{2}[/tex] (two oxygens)
IHD = [tex]\frac{(2*8)-7-(2*1)}{2}[/tex] = 2
This means that the molecule contains 2 unsaturated bonds, which can form 2 aromatic rings.
Learn more about index of hydrogen deficiency here
brainly.com/question/17355038
#SPJ4
Complete question:
Give a molecular formula for your product if it contains no oxygens. Give the molecular formulas if your product contains one and two oxygens (some may not be possible).
The molecular formula for if my molecule does not have any oxygens is C6H6, if it has one oxygen it would be C7H6O, if it was two it would be C8H7O2.
Calculate the index of hydrogen deficiency, and therefore the number of rings and/or p- bonds in your unknown for each of the molecular formulas in question 3. Show your calculation
The hybridization of one s and one p orbital will result in the formation of two ____ hybrid orbitals. This will leave _____ unhybridized valence p orbital(s), lying at right angles to the hybrid orbitals.
The hybridization of one s and one p orbital will result in the formation of two sp hybrid orbitals. This will leave one unhybridized valence p orbital, lying at right angles to the hybrid orbitals.
Hybridization is a process in which atomic orbitals of similar energy and shape mix together to form new orbitals of the same total energy. This can occur when atoms or molecules come together or when a molecule is exposed to certain kinds of radiation.
In chemistry, hybridization is most commonly used to describe the bonding between atoms of different elements. Hybridization is important because it allows atoms to form strong bonds by sharing electrons more evenly. This allows molecules to form more complex structures and can help explain the behavior of complex molecules.
Learn more about hybridization
https://brainly.com/question/28468454
#SPJ4
Find the empirical formula of a compound that contains 54.04% calcium, 43.23% oxygen and
2.70% hydrogen.
Answer:
CaH2O2
Explanation:
ez
which of the following statements is/are true regarding the distribution of oceanic benthic biomass?
Concerning the distribution of marine benthic biomass, the following statement or claims about primary production are accurate.
What is a good example of productivity?Primary productivity is indeed the process through which organisms transform inorganic elements into straightforward organic materials. Autotrophs, or primary producers, are in charge of this phenomenon. Typical primary examples of producers include coccolithophores, dinoflagellates, and diatoms.
How is primary productivity calculated, and what does it mean?Water in which production is to be assessed is sealed in sealed white as well as dark containers that are painted dark to prevent light from entering. Rating scale can be estimated by the quantity of oxygen utilized by a size of water in a defined amount of time.
To know more about Primary production visit:
https://brainly.com/question/20615000
#SPJ4
the d-metals can be mixed together to form a wide range of alloys because select all that apply 1. the d-metals have low melting points. 2. the d-electrons interact strongly with each other. 3. the range of d metal radii is not very great. 4. the d-metals have a wide range of metal radii. 5. the nucleus is well shielded by the d electrons. 0
Due to the relatively narrow range of d-metal radii and the nearly identical sizes of all the metal ions across the series, the d-metals can be combined to create a large variety of alloys.
Why must elements be combined to create alloys?Since alloys, which are combinations of several elements, offer qualities that are superior to those of pure metals, almost all metals are employed in alloy form. The most common reasons for alloying are to increase strength, improve corrosion resistance, or cut expenses.
What is the D-block element alloy forming process?D block elements are used to combine other metals in alloys. Due to their huge size, D-lock elements combine with other elements, such as hydrogen, to produce interstitial compounds.
To know more about alloys visit :-
https://brainly.com/question/1759694
#SPJ4
which of the following is not a characteristic of ribozymes? they are rna molecules. they are substrate specific. they enhance the reaction rate. they emerge from the reaction changed.
They alter as a result of the reaction. is not a quality that ribozymes possess.
What role does ribozyme play?In a nucleic acids molecule, ribozymes, which are RNA molecules, can both break and create covalent bonds. These compounds can bind and cleave an mRNA substrate with even larger potential advantages then antisense oligodeoxynucleotides.
What are ribozymes' two key functions?Ribozymes, also known as catalytic RNA, are proteins that link amino acids to build protein chains. They are located in the ribosome. In addition to these crucial processes, ribozymes also participate in RNA splicing, transferred RNA production, and viral replication.
To know more about ribozymes visit:
https://brainly.com/question/29651699
#SPJ4
Classify each amino acid into the following categories. Select the amino acid that fits best in each category. Each amino acid will be used only once.1. A basic amino acid:LysAspThrLeu2. An acidic amino acid:LysAspThrLeu3. A neutral polar amino acid:LysAspThrLeu4. A hydrophobic amino acid:LysAspThrLeu
The amino acid which is basic in nature is Lysine. The amino acid which is acidic in nature is aspartic acid. The amino acid which is neutral polar is threonine and the amino acid which is hydrophobic in nature is leucine.
At physiological pH, Lysine (Lys) develops full positive charge in their side chains. Hence, they are basic in nature.
At the pH of body fluids, amino acids such as glutamic acid and aspartic acid can release a proton from their additional carboxyl group and acquire a negative charge themselves.
Threonine is a polar but uncharged amino acid and hence prefer aqueous phase where they can form bonds with hydrogen.
Leucine only contains carbon and hydrogen in its structure and hence it is a hydrophobic and non-polar amino acid.
Learn more about amino acids here brainly.com/question/17101933
#SPJ4
Complete question:
Classify each amino acid into the following categories:
1. A basic amino acid
2. An acidic amino acid
3. A neutral polar amino acid
4. A hydrophobic amino acid
Select the amino acid that fits best in each category. Each amino acid will be used only once. Options are: Lysine, Aspartic acid, Threonine, Leucine.
some of the formulas could be either molecular or empirical formulas; however, some can only be molecular formulas.
The formula CH₂O must be a molecular formula. The molecular formula of a compound is the actual number of atoms of each element in a molecule of the compound, while the empirical formula is the simplest whole-number ratio of atoms in the compound.
The formulas PO, C₂H₆, CH₂O, C₃H₄O₃, and C₂H₄O₂can all be either molecular or empirical formulas.
However, for some formulas, there can only be one possible molecular formula, meaning that it cannot be represented as an empirical formula. For example, the formula CH₂O must be the molecular formula because the empirical formula, CH, represents half the number of atoms in the molecule.
So, the formula CH₂O must be a molecular formula.
Learn more about molecule here: brainly.com/question/19922822
#SPJ4
Complete question:
Some of the formulas could be either molecular or empirical formulas; however, some can only be molecular formulas. Which of the formulas must be molecular formulas?
РО
C₂H₆
CH₂O
C₃H₄O₃
C₂H₄O₂
Please Help me ASAP - Next 90 minutes!! With my Homework Assignment!
100 Points + Brainliest if correct! Both questions please!!!!
Answer:
see below
Explanation:
1) here we are given that one mole of propane releases 2221kJ of energy.
now use unitary method as ,
to burn 1 mol (44g) propane 2221kJ of energy is required
to burn 1g of propane 2221kJ/44g of energy is required
therefore to burn 25g of propane 2221/44*25kJ of energy is required= 1261.93kJ ≈ 1262 kJ
Hence 1262kJ of energy is required to burn 25g propane.
2) amount of heat absorbed= 25kJ
amount of work done = 12J
change in energy= (25-12)kJ = 13kJ
Hence the value of ∆E is 13kJ .
and we are done!
The density is calculated below from the measurements. How many significant figures should the answer be reported with?
The number of significant figures is 2 sig figs
The mass of a substance per unit of volume is its density.
Density is most frequently represented by the symbol, however Latin letter D may also be used.
The formula for density is mass divided by volume:
Displaying the style "rho = frac mV" where
m is the mass, V is the volume, and is the density
Hence,
find the smallest number used in the calculation.
There are 2 digits used.
when solving, round to have 2 significant figures
Read more about significant figures here:
https://brainly.com/question/24491627
#SPJ1
In a mass spectrometer, a compound is first vaporized and converted into ions, which are then separated based on a difference in their A boiling points E B dipole moments AL C mass-to-charge ratio Qu D ability to form hydrogen bonds
The correct answer is C) mass-to-charge ratio. In a mass spectrometer, a compound is first vaporized and converted into ions, which are then separated based on their mass-to-charge ratio.
A mass spectrometer is a tool used to identify the chemical composition of a sample. The process starts with the vaporization of a sample, turning it into gas. The gas is then ionized, creating positively charged ions. The ionized particles are then separated based on their mass-to-charge ratio. This separation is achieved by using magnetic and electric fields. The ions travel through the spectrometer and are separated based on their m/z ratio. The m/z ratio is calculated by dividing the mass of the ion by its charge. The resulting spectrum provides information about the chemical composition of the sample and is used to identify unknown compounds. Mass spectrometry is an important technique in many scientific fields, including analytical chemistry, environmental science, and biochemistry.
Learn more about ions here: brainly.com/question/14982375
#SPJ4
CAN SOMEONE HELP WITH THIS QUESTION?✨
The percentage error, given that the measured density of the metal is 4.16 g/cm³, is 3.53%
How do I determine the percentage error?First, we shall determine the absolute error in the measurement. Details below:
Measured value = 4.16 g/cm³Accepted value = 4.018 g/mL = 4.018 g/cm³Absolute error = ?Absolute error = accepted value - measured value
Absolute error = 4.018 - 4.16
Absolute error = 0.142 g/cm³
Haven obtain the absolute error, we shall determine the percentage error. This can be obatined as follow:
Absolute error = 0.142 g/cm³Accepted value = 4.018 g/cm³Percentage error =?Percentage error = (Absolute error / accepted value) × 100
Percentage error = (0.142 / 4.018) × 100
Percentage error = 3.53%
Thus, we can conclude that the percentage error is 3.53%
Learn more about percentage error:
https://brainly.com/question/17880579
#SPJ1
Fossils provide scientists with a great deal of
information about prehistoric animals. There are two
types of fossils: body fossils and trace fossils.
Place each fossil under the correct category.
burrows
made by
ancient
animals
body fossils
fossilized
Diplodocus
egg
teeth
marks on
fossilized
trees
teeth of
Megalodon
trace fossils
Body fossils are animals, egg and teeth. Trace fossils are burrows and Diplodocus. An animal or plant from a previous geologic era that has been retained in the Earth's crust as a fossil.
What is fossil?An animal or plant from a previous geologic era that has been retained in the Earth's crust as a fossil, remnant, imprint, or trace. The main repository for knowledge regarding the evolution of life on Earth is the complex of information preserved in fossils found all across the planet.
Only a tiny percentage of extinct species have been retained as fossils, and often only those with a sturdy skeleton are capable of doing so. Body fossils are animals, egg and teeth. Trace fossils are burrows and Diplodocus.
Therefore, body fossils are animals, egg and teeth. Trace fossils are burrows and Diplodocus.
To learn more about fossils fuels, here:
https://brainly.com/question/3371055
#SPJ1
Metallic magnesium can be made by the electrolysis of molten MgCl2. (a) What mass of Mg is formed by passing a current of 5.25 A through molten MgCl2 for 2.50 days?
Metallic magnesium can be made by the electrolysis of molten MgCl2. 14.84g of Mg is formed by passing a current of 5.25 A through molten MgCl2 for 2.50 days.
What is mass ?The term mass is defined as a dimensionless quantity representing the amount of matter in a particle or object. The standard unit of mass in the International System (SI) is the kilogram (kg).
Given:
2.50 days = 224640 sec
Mg2+ + 2e- ⇒ Mg
5.25 A = 5.25Coulomb / s
5.25 C/s x 224640 s
= 117,915 C
117,915 C / 96500 C/F
= 1.22 F
1.22 F (1 mole Mg/ 2 F)
= 0.61 mole
Mass Mg = 0.61mol x 24.3 g/mol
= 14.84g
Thus, 14.84g of Mg is formed by passing a current of 5.25 A through molten MgCl2 for 2.50 days.
To learn more about the mass, follow the link;
https://brainly.com/question/19694949
#SPJ1
the following is a list of the acid-base properties of some amino acids with ionizable side chains. which amino acid has the greatest isoelectric point?
The isoelectric point (pI) is the pH at which an amino acid or protein.
Which amino acids have Ionisable side chains?Functional groups of amino acids in enzymes present have the ability to readily ionize. other amino acids which have ionizable side chains. These include arginine, aspartic acid, cysteine, glutamic acid, histidine, lysine and tyrosine.
What are the 4 types of amino acid side chains?There are basically four different classes of amino acids determined by different side chains: (1) non-polar and neutral, (2) polar and neutral, (3) acidic and polar, (4) basic and polar. Principles of Polarity: The greater the electronegativity difference between atoms in a bond, the more polar the bond.
To know more about isoelectric point visit :-
https://brainly.com/question/14895346
#SPJ4
propane, , is widely used in liquid form as a fuel for barbecue grills and camp stoves. for of propane, calculate the following quantities. round each of your answers to significant figures.
a.1.54 mole have 3significant figures
b.55.39g of carbon have 4significant figures
In positional notation, significant figures are the digits in a number that are trustworthy and required to denote the amount of something.
a)Determination of the number of mole in 67.7g pf C3H8.
mass of C3H8=67.7g
molar mass of C3H8 =(3*12)+(8*1)=44g/mol
number of mole of C3H8=..?
number of mole=mass/molar mass
number of mole of C3H8=67.7/44
Number of mole of C3H8=1.54mole
The significant figure for 1.54 mole is 3SF
b)Determination of the mass if carbon in the compound.
This is illustrated below:
The mass of C in compound can be obtained as follow:
= 3C/C3H8*67.7
=3*12/44*67.7
=36/44*67.7
=55.39g
Therefore,55.39g of carbon is present in the compound.
The significant figures for 55.39g is 4SF
learn more about significant figures Refer:brainly.com/question/11954208
#SPJ4
complete question:Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 67.7 g of propane, determine the following.(a) Calculate the moles of compound.mol(b) Calculate the grams of carbon.g .round each of your answers to significant figures.
Question 3
If we increase the temperature of the vessel to 450 K at constant volume, what
would the pressure inside the vessel be?
O 5 atm
O 20 atm
O 15 atm
O 10 atm
The new pressure of the gas is 15 atm. Option C
What is the new pressure?We know that the gas laws can be used to obtain the parameters that ahs to do with the idea gas and in this case we have to deal with the relationship of the pressure and the temperature of the gas at a constant volume.
We know that;
Given that;
P1/T1 = P2/T2
P1T2 = P2T1
P1 = initial pressure
P2 = final pressure
T1 = initial temperature
T2 = Final temperature
Thus;
P2 = 10 * 450/300
P2 = 15 atm
The pressure of the gas is 15 atm
Learn more about ideal gas:brainly.com/question/28257995
#SPJ1
Missing parts;
We are studying the properties of a 10 L vessel of an ideal gas at 300 K and 10 atm of pressure inside. We can fix the volume or the pressure of the vessel as we like.
Question 3
If we increase the temperature of the vessel to 450 K at constant volume, what would the pressure inside the vessel be?
Group of answer choices
10 atm
5 atm
20 atm
15 atm
write formulas/charges or names as appropriate for each of the following monatomic ions 1. magnesium ion
A monatomic ion is a type of monatomic atom technically speaking. However, the term "monatomic atom" typically refers to an element's neutral atom. Krypton (Kr) and neon atoms are two examples (Ne).
Which atomic groupings contain monatomic ions?Cations that have a single conceivable charge are known as monatomic cations. Only Group IA (alkali metals, +1), Group IIA (alkaline metals, +2), zinc (Zn2+), aluminum (Al3+), and silver (Ag+) contain these ions.
Why are ions monoatomic or polyatomic?An ion that has more than one atom is called polyatomic since the word poly- signifies numerous. This sets polyatomic ions apart from monatomic ions, which are made up of a single atom.
To know more about monatomic ion visit :-
https://brainly.com/question/1959761
#SPJ4