Intermolecular forces are the interactions between molecules and are generally weaker than bonds within molecules. So, the molecule with only dispersion forces between like molecules would be the one with the largest size and highest surface area.
All the molecules experience intermolecular dispersion forces, which is also known as London dispersion forces. These forces generally arise from temporary fluctuations in the distribution of electrons within a molecule, that creates a temporary dipole. When any two molecules come close to each other, their temporary dipoles interact, which creates an attractive force between the molecules.
The dispersion forces become stronger as the size of a molecule increases and as its surface area increases, as more temporary dipoles are generated.
To know more about Intermolecular forces refer to-
brainly.com/question/9007693#
#SPJ4
You titrate a 200 ml hbr solution with 0.5 m koh. if it takes 150 ml of koh to reach the equivalence point, what was the concentration of the original acid solution?
The reaction between HBr and KOH is a neutralization reaction, which occurs when an acid reacts with a base to form a salt and water.
The balanced chemical equation for the reaction between HBr and KOH is:
HBr + KOH -> KBr + H2O
This equation tells us that one mole of HBr reacts with one mole of KOH to form one mole of KBr and one mole of water.
Next, we need to find the number of moles of HBr that reacted with KOH. This can be calculated using the volume (150 ml) and concentration (0.5 M) of the KOH solution:
moles KOH = 0.5 M x 150 ml / 1000 ml/L = 0.075 moles
Since one mole of HBr reacts with one mole of KOH, the number of moles of HBr is equal to the number of moles of KOH:
moles HBr = 0.075 moles
Finally, we can use the number of moles of HBr and the volume of the HBr solution (200 ml) to calculate its concentration:
concentration HBr = moles HBr / (200 ml / 1000 ml/L) = 0.075 moles / 0.2 L = 0.375 M
To learn more about neutralization reaction please click on below link
https://brainly.com/question/30068395
#SPJ4
molecules of a liquid can pass into the vapor phase only if the question 17 options: a) temperature of the liquid is near its boiling point. b) molecules have sufficient kinetic energy to overcome the intermolecular forces in the liquid. c) liquid has little surface tension. d) vapor pressure of the liquid is high.
Molecules have sufficient kinetic energy to overcome the intermolecular forces in the liquid. So option B is correct.
Molecules of a liquid can pass into the vapor phase provided that the molecules have adequate kinetic energy to beat the intermolecular powers in the fluid.
This happens when the temperature of the fluid is close to its edge of boiling point, and the vapor tension of the fluid is high. The surface pressure of the fluid affects the vaporization cycle.
So, the correct option is b) "molecules have sufficient kinetic energy to overcome the intermolecular forces in the liquid."
To learn more about kinetic energy:
https://brainly.com/question/8101588
#SPJ4
how will the presence or absence of the nh4 ion be detected in fertilizer? add silver nitrate (agno3) and look for a white precipitate. add sodium hydroxide (naoh) and look for a color change with red litmus paper. add hydrochloric acid (hcl) and look for the presence of bubbles. add hydrochloric acid (hcl) and look for a color change with red litmus paper. add hydrochloric acid (hcl), followed by bacl2 and look for the formation of a white precipitate.
The presence or the absence of the NH₄⁺ ion be detected in fertilizer is the correct option is add sodium hydroxide (NaOH) and look for a color change with red litmus paper.
The NH₄⁺ ion that is the ammonium ion in a solution can be detected by adding the sodium hydroxide solution and then heat the solution. The ammonium ion will convert to the ammonia gas if the ammonium ions are present. The ammonia has the different odor.
It will also `change the color of the red litmus paper to the blue. Therefore in this way we can detected the absence and the presence of the ammonium ion.
To learn more about litmus paper here
https://brainly.com/question/13945946
#SPJ4
enough of a monoprotic acid is dissolved in water to produce a 1.79 m solution. the ph of the resulting solution is 2.67 . calculate the ka for the acid.
In this case, the pH of the solution is 2.67, which indicates that it is a strong acid.
The pH of a solution is a measure of its hydrogen ion concentration and can be used to determine the strength of an acid.
The acid dissociation constant (Ka) is a measure of the strength of an acid and is defined as the product of the concentration of hydrogen ions (H+) and the concentration of the conjugate base (A-) divided by the concentration of the undissociated acid (HA).
To calculate the Ka for the monoprotic acid, we need to first determine the concentration of hydrogen ions in the solution. This can be done using the equation:
[H+] = 10^(-pH) = 10^(-2.67) = 4.33 × 10^(-3)
Next, we can use the concentration of hydrogen ions and the initial concentration of the acid to determine the concentration of the conjugate base (A-).
Finally, we can use these values to calculate the Ka for the acid:
Ka = [H+] * [A-] / [HA]
Ka = [H+] × [A-] / [HA] = 6.31 x 10^-3 × [A-] / (1.79 - [A-])
It is important to note that the concentration of the acid will decrease as it dissociates in solution, so it is necessary to use the initial concentration of the acid in this calculation.
Learn more about strong acid:
brainly.com/question/16749233
#SPJ4
true or false. orbitals are a delocalized cloud of electron density
It holds true. Orbitals are still a molecular orbitals cloud of charge density, which means that the protons are dispersed across a wide area as opposed to someone being centralized in a single place.
Where are the orbitals?Each subshell's electrons are organized into orbitals, which are areas of the atom's interior where a certain electron is still most likely to be. There are two electrons in each orbital, and their spins vary. An electron in a certain subshell can be located in an atom's orbital, an area of space.
What is the name for orbitals?Any atom typically contains a large number of orbitals for each n value and these orbitals are collectively referred to as electron shells.
To know more about Orbitals visit :
https://brainly.com/question/18914648
#SPJ4
when phosphorus-30 loses a positron (undergoes positron emission) what is the product of this radioactive decay?
When phosphorus-30 loses a positron (undergoes positron emission) the result is sulphur-30.
Radioactive decay is also defined as the nuclear decay refers to the process where a new element, which is relatively more stable than its parent nucleus and is formed when an unstable atomic nucleus releases out energy in the form of radiation. Radioactive decay can be classified into various types, which are alpha decay, beta decay, gamma decay, positron emissions, and electron capture, these types can be distinguished from one another in terms of the particle they emit forming the type of product.
Sulphur-30 is made from sulphur springs that is suitable for skin ailments such as pain, redness, burning, and inflammation. It belongs to the mineral kingdom. Sulphur-30 is also beneficial in the treatment of stomach disorders like acidity and gastric issues.
Learn more about radioactive decay from the link given below.
https://brainly.com/question/20475641
#SPJ4
the normal boiling point occurs when the question 8 options: a) intermolecular forces within the liquid phase are broken. b) vapor pressure of the liquid equals the external pressure. c) temperature of the pure liquid equals the external temperature. d) vapor pressure of a pure liquid equals an external pressure of one atmosphere.
The normal boiling point of a liquid occurs when the vapor pressure of the liquid equals the external pressure, which is typically one atmosphere (760 torr). Correct answer: letter C.
This means that the vapor pressure of the liquid must equal the atmospheric pressure in order for the liquid to boil. The temperature at which this occurs is known as the normal boiling point.
As the temperature continues to rise, the vapor pressure of the liquid continues to increase, and eventually surpasses the atmospheric pressure. At this point, the liquid will enter a state of rapid evaporation, usually referred to as boiling.
Boiling is a process where liquid molecules evaporate from the surface of the liquid, forming a gas. The temperature of the liquid at which this occurs is referred to as the boiling point. The boiling point of a liquid is determined by the vapor pressure of the liquid, which is affected by factors such as the intermolecular forces within the liquid, the temperature, and the external pressure.
Learn more about normal boiling point
https://brainly.com/question/40140
#SPJ4
Rank the solvents according to their polarities, from the most polar to nonpolar.
water, ethanol, acetone, ethyl acetate, and hexane.
Water is the most good solvent, then ethanol, acetone, ethyl acetate, and hexane in decreasing order of polarity.
What does polarity imply in plain English?An object has polarity when it has 2 distinct, opposing poles that may alternatively attract or reject each other and. The phrase is frequently employed to describe the electron's movement in the fields of electric, magnetism, chemical, and electronic signaling.
What are some polarity instances?Polarities are frequently seen in company, such as centralized vs decentralization or development versus profit maximization. Considering the work-life balance, liberal vs conservative beliefs, etc. It is a hallmark of the system that there is a constant inherent bad blood between the two.
To know more about polarity visit:
https://brainly.com/question/30002497
#SPJ4
how much heat, in joules, is required to warm a metal disc from 14 oc to 42 oc? the mass of the disc is 2.7 grams and the specific heat of the disc is 2.3 j/goc.
Joules are required to heat a metal disc from 14 oc to 42 oc at 0.0304233 j/goc. The disc has a mass of 2.7 grams and a specific heat of 2.3 j/goc.
What is the specific heat, expressed as J/(kg/K)?Specific heat is measured in J/kg•K according to the SI system. Specific heat may also be expressed in J/g•K on occasion. Since aluminum has a specific heat of 903 J/kg•K, it takes 903 J to raise 1.00 kg of aluminum by 1.00 K.
What does 4.184 J GC stand for?The specific heat of water is 4.184 J/g-K because a calorie contains 4.184 joules. A substance's molar heat capacity, or the heat required to raise the temperature of one mole of the substance by either 1°C or 1°K, can also be used to describe the ease with which it gains or loses heat.
To know more about specific heat visit :-
https://brainly.com/question/11297584
#SPJ4
choose one of the precipitates that formed na3po4. write the molecular equation, the complete ionic equation, and the net ionic equation.
The molecular equation, complete complete ionic equation, and the net ionic equation for the reaction of na3po4 is a double displacement reaction.
A precipitation reaction is very insoluble nickel phosphate. It is produced as a light green precipitate when aqueous solutions of the two salts are mixed. The other product is soluble when sodium chloride and that remains in that particular solution for that time.
(1) Molecular equation:
3NiCl2 (aq) + 2Na3PO4 (aq) = Ni3(PO4)2 (s) + 6NaCl (aq)
(2) Ionic equation:
3Ni(2+) (aq) + 6Cl(-) (aq) + 6Na(+) (aq) + 2PO4(3-) = Ni3(PO4)2 (s) + 6Na(+) (aq) + 6Cl(-) (aq)
(3) Net ionic equation:
3Ni(2+) (aq) + 2PO4(3-) (aq) = Ni3(PO4)2 (s)
The net ionic equation is actually obtained by cancellation of the common Na(+) and Cl(-) terms on both the sides which are reactant and product sides.
Learn more about double displacement reaction:
brainly.com/question/29307794
#SPJ4
If we reduce the volume in the vessel and the new pressure is measured to be 40 atm, what would the new volume be?
The new volume of the gas will be equal to 2.5 L at a pressure of 40 atm.
The final pressure of the gas = 40 atm
The initial volume of the gas = 10 L
According to Boyle's law, a gas's pressure is inversely proportional to its volume when the gas is a certain mass and is operating at a fixed temperature. So long as the temperature is constant, the relationship between the pressure and volume is inverse.
Calculating the pressure -
P ∝ 1/V or P₁V₁ = P₂V₂
Substituting the values of volume and pressure -
= 10 × 10 = 40 × V₂
V₂ = 100/4
V₂ = 2.5 L
Complete question:
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. If we reduce the volume in the vessel and the new pressure is measured to be 40 atm, what would the new volume be?
(A) 10 L
(B) 5 L
(C) 3.33 L
(D) 2.5 L
Read more about gas on:
https://brainly.com/question/25736513
#SPJ4
What adds nucleotides to exposed bases?
An enzyme known as DNA polymerase adds nucleotides to exposed bases during DNA replication.
What is DNA polymerase?An enzyme known as DNA polymerase, which adds nucleotides to the exposed bases of the DNA strand, catalyses the replication of DNA. The DNA double helix unwinds and the two strands split during DNA replication. This enables the original DNA strand's exposed bases to act as a template for the construction of a new complimentary strand.
By pairing the appropriate complementary nucleotide with the exposed base and then joining the complementary nucleotides together via the formation of a phosphodiester bond, DNA polymerase adds nucleotides to the exposed bases. A primase is required to add a short RNA primer to the template strand since DNA polymerase can only add nucleotides to the 3'-end of a developing strand.
To know more about DNA, visit:
https://brainly.com/question/28481425
#SPJ4
Construct an argument on whether the weight of a pencil would change THREE-DIMENSIONAL THINKING as the pencil falls from 10 m to the ground.
The gravity of the earth is denoted by the symbol 'g'. Here there is no change in the weight of the pencil as it falls from 10 m to the ground.
What is acceleration due to gravity?The acceleration acquired by an object due to the gravitational force is defined as the acceleration due to gravity. It is generally denoted by the symbol 'g'. Its standard value is 9.8 m/s².
The value of 'g' is not affected by the mass. The factors affecting its value are earth's shape, altitude and depth of the earth's surface. So during the free fall of a pencil there is no air resistance on it.
Thus the weight of the pencil will not change.
To know more about acceleration due to gravity, visit;
https://brainly.com/question/13860566
#SPJ1
in which of the following regions of a generic phase diagram it is possible for the liquid to be the most stable phase? check all that apply. in which of the following regions of a generic phase diagram it is possible for the liquid to be the most stable phase?check all that apply. temperatures greater than the critical temperature temperatures less than the temperature of the triple point pressures greater than the critical pressure pressures less than the pressure of the triple point
In a generic phase diagram, it is possible for the liquid to be the most stable phase at:
Temperatures less than the temperature of the triple point.
Pressures less than the pressure of the triple point.
The triple point on a phase diagram represents the conditions (temperature and pressure) at which all three phases (solid, liquid, and gas) can coexist in equilibrium. At temperatures below the temperature of the triple point and pressures below the pressure of the triple point, the liquid phase is the most stable phase and can exist on its own without undergoing a phase change.
On the other hand, temperatures greater than the critical temperature and pressures greater than the critical pressure are in the supercritical region, where the distinction between the liquid and gas phases is no longer meaningful, and the substance exists as a supercritical fluid. In this region, the liquid is not a stable phase and would evaporate or boil if present.
Learn more about pressure here:
https://brainly.com/question/29341536
#SPJ4
when the velocity of an enzymatic reaction is 30% vmax, what is the relationship between km and substrate concentration?
The correct answer to the first question is a) 0.4Km = [S].
When the velocity of an enzymatic reaction is 30% Vmax, the substrate concentration is 0.4 times the Michaelis constant (Km). This means that the substrate concentration is equal to 0.4 times the Km value.
The correct answer to the second question is e) a and b.
The glycogen phosphorylase enzyme can be activated/stimulated by both phosphorylation of selected serine residues in the phosphorylase b form of the enzyme, as well as the actions of positive allosteric modulators such as AMP
Find out more about enzymatic reaction
brainly.com/question/29102181
#SPJ4
question:-
When the velocity of an enzymatic reaction is 30% Vmax, what is the relationship between Km and substrate concentration? a) 0.4Km=[S] b) Km=0.4[ S] c) Km=4[ S] d) [S]=40Km Question 7 The glycogen phosphorylase enzyme is activated/stimulated by: a) phosphorylation of selected serine residues found in the phosphorylase b form of the enzyme. b) the actions of positive allosteric modulators such as AMP. c) proteolysis through the actions of trypsin followed by self digestion. d) the association of 4 phosphorylase b subunits to produce phosphorylase a, a functional oligomeric protein. e) a and b
The melting point of gold is 1947°F. Express this temperature in degrees Celsius
and in kelvins
The melting point of gold is 1947°F. This temperature in degrees Celsius 1063.889°C and in kelvin is 1337.039K.
What is temperature ?Temperature is a physical quantity that quantifies our feelings of hotness and coldness. A thermometer is used to measure temperature.
According to the International System of Units, the SI unit of temperature is Kelvin, which is represented by the symbol K. In the fields of science and engineering, the Kelvin scale is widely accepted or used. However, in most parts of the world, temperature is measured using the Celsius or Fahrenheit scale.
Thus, The melting point of gold is 1947°F. This temperature in degrees Celsius 1063.889°C and in kelvin is 1337.039K.
To learn more about the temperature, follow the link;
https://brainly.com/question/11464844
#SPJ1
determine the molality of a solution of water dissolved in methanol for which the mole fraction of water is 0.228.
The molality of a solution of water dissolved in methanol for which the mole fraction of water is 0.228 is 9.45*10-3 M.
Mole fraction = 0.228 = moles water/total moles
Let total moles = 1
0.228 = x/1
X =0.228
Molality = moles of solute/mass of solvent
M = 0.228/(1-0.228)*32= 9.45*10-3 M
Molality (m), or molal awareness, is the amount of a substance dissolved in a sure mass of solvent. it's far defined because of the moles of a solute in step with kilograms of a solvent. The molality of a solution is identical to the moles of solute divided via the mass of solvent in kilograms, at the same time as the molarity of an answer is equal to the moles of solute divided by way of the extent of solution in liters.
Molality is a measure of the range of moles of solute in an answer corresponding to 1 kg or a thousand g of solvent. This contrasts with the definition of molarity that's based totally on a precise quantity of solution. A normally used unit for molality in chemistry is mol/kg. The image for molarity is M or moles/liter. Chemists also use square brackets to signify a reference to the molarity of a substance.
To learn more about Molality visit here:
brainly.com/question/26921570
#SPJ4
the mass in grams of 7.5 moles of AI(OH)3
The mass (in grams) of 7.5 moles of aluminum hydroxide, Al(OH)₃ is 585 grams
How do I determine the mass of Al(OH)₃We'll begin by obtaining the molar mass of Al(OH)₃. Details below:
Molar mass of Al = 27 g/molMolar mass of O = 16 g/molMolar mass of H = 1 g/molMolar mass of Al(OH)₃ =?Molar mass of Al(OH)₃ = 27 + 3[16 + 1]
Molar mass of Al(OH)₃ = 27 + 3[17]
Molar mass of Al(OH)₃ = 27 + 51
Molar mass of Al(OH)₃ = 78 g/mol
Finally, we shall determine the mass of 7.5 moles of Al(OH)₃. Details below:
Mole of Al(OH)₃ = 7.5 moles Molar mass of Al(OH)₃ = 78 g/molMass of Al(OH)₃ =?Mole = mass / molar mass
Cross multiply
Mass = Mole × molar mass
Mass of Al(OH)₃ = 7.5 × 78
Mass of Al(OH)₃ = 585 g
Thus, we can conclude that the mass of Al(OH)₃ is 585 g
Learn more about mass:
https://brainly.com/question/6613610
#SPJ1
What is the direct transfer of phosphate between substrates is called?
Substrate-level phosphorylation is the term used to describe the direct transfer for phosphate between substrates.
What exactly do you mean by phosphate?In chemistry, a phosphate is an anion, salts, functional group, an ester made from phosphoric acid. Most frequently, it refers to orthophosphate, which is a product of orthophosphoric acid (also known as phosphoric acid) H3PO4. One phosphorus atom is joined with four oxygen atoms to form a phosphate. A phosphate group is what happens when a phosphate molecule is joined to a carbon-containing molecule.
What is phosphate's primary use?In the development of bone and teeth, phosphate is helpful. Additionally, phosphorus is a component of a number of essential compounds, such as those that the cell uses for DNA, cell membranes, and energy (deoxyribonucleic acid).
To know more about phosphate visit :
https://brainly.com/question/2426918
#SPJ4
compound a exhibits two singlets in its 1h nmr spectrum at 2.64 and 3.69 ppm and the ratio of the absorbing signals is 2:3. compound b exhibits two singlets in its 1h nmr spectrum at 2.09 and 4.27 ppm and the ratio of the absorbing signals is 3:2. which compound corresponds to dimethyl succinate and which compound corresponds to ethylene diacetate?
Compound A corresponds to dimethyl succinate, while compound B corresponds to ethylene diacetate.
To determine the assignment, we can use the chemical shift values and the signal intensity ratios.
For dimethyl succinate (compound A), the signals at 2.64 ppm and 3.69 ppm correspond to the methyl groups on the succinic acid moiety. The 2:3 ratio of these signals is consistent with the coupling between the two methyl groups (J = 6 Hz) and indicates that they are present in a trans configuration.
For ethylene diacetate (compound B), the signals at 2.09 ppm and 4.27 ppm correspond to the acetyl protons on the ethylene moiety. The 3:2 ratio of these signals is consistent with the coupling between the two acetyl groups (J = 9 Hz) and indicates that they are present in a trans configuration.
So, based on the above information, compound A corresponds to dimethyl succinate and compound B corresponds to ethylene diacetate.
Learn more about dimethyl succinate here:
https://brainly.com/question/14140106
#SPJ4
Two graduated cylinders, one filled with water to 17 milliliters and one with water and a key filled to 25 milliliters.
Calculate the volume of this irregular solid to the nearest cubic centimeter.
What is the volume of the key?
Here, assume that the two cylinders are initially filled with 17 ml of water. But the water level in the second beaker raised to 25 m/ Then the difference in water level is the volume of the substance that is, volume of the key is 8 ml or 8 cm³.
What is Archimedes principal ?Archimedes principal states that, when an object is submerged in a fluid, the volume of displaced from the fluid is equal to the volume of the submerged object.
Objects with a density less than water will float on it. Whereas, objects denser than water will sink on it. Certain volume of water will replace or rises above by equal volume of the object.
Here, initially the water level was up to 17 ml. The water level raise up to 25 ml. Thus 8 ml of water is replaced by the key. Therefore, the volume of the key is 8 ml.
1 ml = 1 cm³
then volume of the key is 8 cm³.
Find more on Archimedes principle:
https://brainly.com/question/20351122
#SPJ1
what mineral is the hardest known substance in nature? group of answer choices silicate diamond muscovite native gold
Diamond mineral is the hardest known substance in nature, its resistance to scratching and is measured using the Mohs scale
The hardness of a mineral is defined as its resistance to scratching and is measured using the Mohs scale, a relative scale that ranges from 1 (softest) to 10 (hardest). Diamond has a hardness of 10, the highest rating on the Mohs scale, making it the hardest substance known to exist in nature. This hardness gives diamond its exceptional durability, making it ideal for use in jewelry and other applications where scratch resistance is important. The hardness of diamond also makes it difficult to cut, shape, and polish, which has led to the development of specialized cutting and polishing techniques to work with this unique mineral.
Learn more about Diamond here:
https://brainly.com/question/29775108
#SPJ4
which structural feature most liekly accounts for the signals aroudn 7 ppm in the given 1h nmr spectrum
The signals around 7 ppm in a 1H NMR spectrum are likely due to the presence of aromatic protons.
Aromatic protons are those protons that are attached to an aromatic ring structure, such as a benzene ring. These protons have a very distinct chemical shift of around 7 ppm and will show up as a multiplet in the spectrum.
The aromatic protons also have an increased coupling effect, resulting in the signal appearing as a multiplet rather than a single peak. Additionally, the coupling effect between the aromatic protons can cause them to appear as a triplet, quartet, sextet, or other pattern, depending on the number of aromatic protons in the molecule.
Learn more about spectrum:
https://brainly.com/question/23423065
#SPJ4
The Stoneville Pedigree Seed Company is developing cotton seeds that produce toxins making the plants resistant to pests. How can the production of these new plant strains negatively impact the growth of cotton?
Ecological imbalance, Resistance development, Toxicity to non-target species, Market rejection and Regulatory issues are the factors that the production of new cotton plant strains with toxin-producing abilities could negatively impact the growth of cotton.
What are the effects of toxin production?
Toxin production in plants can have various effects on different species, including both beneficial and harmful impacts.
Non-target species: Toxins produced by plants can be harmful to non-target species, such as beneficial insects, birds, and mammals, that play important roles in maintaining a healthy ecosystem. For example, toxins produced by cotton plants could potentially harm beneficial insects that pollinate the cotton flowers, leading to reduced pollination and lower cotton yields.
Pest species: Toxins produced by plants can be effective in controlling pest populations, as they are designed to be toxic to specific pests. This can help to reduce damage to crops, increase yields, and reduce the need for chemical pesticides.
Humans and livestock: Toxins produced by plants can also have potential health risks to humans and livestock that come into contact with the plant or consume products made from the plant.
Therefore, it's important to carefully evaluate the safety of toxin-producing plants before they are introduced into the market.
To know more about Toxin Production, visit:
brainly.com/question/13861189
#SPJ1
boiling point of a solution containing n5.35 g of a nonvolatile hydrocarbon in 102.2 g of aceotne is 56.6 what is the molecular weight of the hydrocarbon?
The molecular weight of the hydrocarbon is approximately 82 g/mol.. To determine the molecular weight of the hydrocarbon, we need to use the boiling point elevation formula.
The boiling point elevation, ΔTb, of a solution is given by ΔTb = Kb * molality, where Kb is the molal boiling point constant for the solvent (1.71 °C/m for acetone) and molality is the concentration of solute in the solution (moles of solute per kilogram of solvent).
The molality of the solution can be calculated as follows:
molality = (5.35 g of hydrocarbon) / (molecular weight of hydrocarbon)
The boiling point elevation can then be calculated as:
ΔTb = Kb * molality
Rearranging the equation and substituting the known values, we can solve for the molecular weight of the hydrocarbon:
molality = (56.60°C - 55.95°C) / Kb
molality = 0.065 mol/kg
molecular weight of hydrocarbon = (5.35 g) / (0.065 mol/kg)
The molecular weight of the hydrocarbon is approximately 82 g/mol.
Learn more about molecules here: brainly.com/question/19556990
#SPJ4
If unknown concentration of 25.00 mL of H₂SO₄ is titrated with 30.00 mL of 0.75M of NaOH to its equivalence point, what is the concentration of the sulfuric acid
According to the molar concentration, the concentration of the sulfuric acid is 0.9 M.
What is molar concentration?Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.
Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.
In case of 2 solutions, molarity is calculated as, M₁V₁=M₂V₂ thus, M₁=0.75×30/25= 0.9 M.
Thus, the concentration of the sulfuric acid is 0.9 M.
Learn more about molar concentration,here:
https://brainly.com/question/21841645
#SPJ1
why are triglycerides ideal for fat storage? multiple select question. they are chemically stable. they maintain hydration. they are energy dense. they are also a vitamin b-12 depot.
They are energy dense. They are chemically stable.
Triglycerides are perfect for storing fat, so why?Triglycerides, the primary form of fat humans ingest, are particularly well adapted for energy storage since they contain more than twice the amount of energy as proteins or carbohydrates.Triglycerides are digested during digestion and then transported to cells via the circulation.
The purpose of triglyceride storage?Your blood contains two different forms of lipids, glycerides and cholesterol:Triglycerides give your body energy while storing extra calories.Cells and some hormones are made of cholesterol.
To know more about chemically stable visit:
https://brainly.com/question/10291952
#SPJ4
Select the most complete explanation of what the pH scale actually measures.
A) The acidity of a solvent
B) The alkalinity of a solvent
C.The concentration of hydrogen ions in a solution is the most correct explanation of what the pH scale actually measures that determines acidity and alkalinity of a solvent
What exactly does a pH metre measure?Monitoring of the hydrogen ion activity in solutions is done with a pH metre. Potentiometry is the basis underlying pH metres' operation. This is how the electric potential of a solution is estimated (voltage). The hydrogen ion concentration in the solution is evaluated by pH. A solution with more H+ ions will always be acidic, while a solution with more OH- ions will constantly be alkaline. The pH range for solutions is 1 to 14. A solution with a pH of 1 will be strongly acidic, whereas one with a pH of 14 will be extremely basic.
Learn more about pH scale here:
brainly.com/question/15045265
#SPJ4
Select the most complete explanation of what the pH scale actually measures.
A) The acidity of a solvent
B) The alkalinity of a solvent
C)The concentration of hydrogen ions in a solution
D)The concentration of hydroxide ions in a solute
The first to purpose that all matter is made of atomsA(110)
B.(118)
Answer:
Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. Dalton based his theory on the law of conservation of mass and the law of constant composition. The first part of his theory states that all matter is made of atoms, which are indivisible.
Explanation:
when information is encoded in molecules, the reproduction cost is _____ than it would be if the information were encoded in bits.A. LowerB. None of TheseC. Higher
Information that is encoded in molecules has a higher cost to reproduce than information that is represented in bits. The right answer is C.
What's the simplest way to describe molecules?The lowest particle of a material that possesses all of its physical and chemical characteristics is referred to as its malekyol (MAH-leh-kyool).Each molecule consists of one or perhaps more atoms
Which sorts of molecules are there?The smallest component in a chemical compound or an element that possesses that element's or compound's chemical characteristics is called a molecule. Chemical bonds allow atoms to come together to create molecules. There are two different kinds of molecules: 1. Molecules of an element The molecules that make up an element .
To know more about Molecules visit :
https://brainly.com/question/16897383
#SPJ4