The mineral that is described here is Mica.
What is a mineral?We would have to note that when we are talking about a mineral in this case, we are going to deal with a kind of substance that is composed of several atoms and is filled with various uses as a precious material.
In this case we are told that a mineral has one plane of cleavage and splits into sheets. We know that mica is a mineral that could have cleavages as has been described in the question that we are supposed to deal with here.
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determine the molality of a solution of methanol dissolved in ethanol for which the mole fraction of methanol is 0.126.
The molality of a solution of methanol dissolved in ethanol for which the mole fraction of methanol is 0.126 is 0.10m
We are given:
Mole fraction of methanol = 0.126
This means that 0.126 moles of methanol is present in 1 mole of a solution
Moles of ethanol = 1 - 0.126 = 0.874 moles
To calculate the mass for given number of moles, we use the equation:
Moles of ethanol = 0.874 moles
Molar mass of ethanol = 46 g/mol
Mass of ethanol=0.874*46=40.204g
To calculate the molality of solution, we use the equation:
Molarity=msolute*1000/Msolute*Wsolvent
Where,
m solute = Given mass of solute (methanol) = 0.126 g
Msolute = Molar mass of solute (methanol) = 32 g/mol
Wsolvent = Mass of solvent (ethanol) = 40.204 g
Putting values in above equation, we get:
Molality=0.126*1000/32*40.204=0.0979=0.10m
Hence, the molality of the solution is 0.11 m
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Solubility curve question. I will give brainliest if done correctly with work.
The solubility curve shows how much of teh solute can dissolve at a particular temperature.
What is the solubility curve?
A solubility curve is a graphical representation of the relationship between the temperature and the maximum amount of a solute that can dissolve in a given amount of solvent to form a solution. It shows the solubility of a solid solute in a liquid solvent, typically at a pressure of 1 atmosphere.
The solubility of a solute generally increases with temperature, and the solubility curve can be used to predict the concentration of a solution at a given temperature.
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why is it necessary to balance chemical equations
Answer:
to satisfy the law of conservation of mass
Explanation:
have great day
Answer:
It is necessary for chemical equations to be balanced because of the law of conservation of mass (the mass of the products = the mass of the reactants).
Chemical equations follow/represent this law
residents around lake gunter have been warned not to drink their water because it contains some unknown chemical contaminant that could be harmful. what is this called? group of answer choices pollution negligence carelessness
Residents around lake Gunter have been warned not to drink their water because it contains some unknown chemical contaminant that could be harmful because of pollution. Option A is correct.
Residents around a lake are warned not to drink their water due to the presence of an unknown chemical contaminant, is called "pollution".
Pollution refers to the presence of substances in the environment that are harmful to living organisms or ecosystems, and can cause negative effects such as disease, death, or ecological imbalance. In this case, the lake water has been contaminated with an unknown chemical that could be harmful to human health, leading to the warning for residents not to drink it.
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--The given question is incomplete, the complete question is
"Residents around Lake Gunter have been warned not to drink their water because it contains some unknown chemical contaminant that could be harmful. What is this called? A) Pollution B) Negligence C) Carelessness D) Recovery E) Biological disaster"--
a flask contains three gases, nitrogen, oxygen, and ammonia. the nitrogen has a partial pressure of 6.52 atm, the oxygen has a partial pressure of 886 torr, and the ammonia has a partial pressure of 2,487 kpa. what it the total pressure in the flask expressed in atm?
To find the total pressure in the flask, First we need to add up the partial pressures of the three gases.
After that we have to convert the partial pressure of oxygen to atmospheres and the partial pressure of ammonia to atmospheres.
1 atm = 760 torr
Therefore, the partial pressure of oxygen in atmospheres is:
886 torr / 760 torr/atm = 1.1667 atm
1 atm = 101.325 kPa
Then, the partial pressure of ammonia in atmospheres is:
2,487 kPa / 101.325 kPa/atm = 24.57 atm
The total pressure in the flask would be-
6.52 atm + 1.1667 atm + 24.57 atm = 32.2567 atm
Rounding to three decimal places:
32.2567 atm = 32.257 atm
Hence, The total pressure in the flask is 32.257 atm.
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true or false: in this experiment, freezing point depression should be positive when the freezing point of the solution is lower than the freezing point of the pure solvent: group of answer choices true false
The stament is True, because, When the freezing point of the solution is lower than the freezing point of the pure solvent , it indicates that freezing point depression has occurred, and it is considered to be a positive result.
When a solution is composed of two or more components, the freezing point of the solution is usually lower than the freezing point of the pure solvent. This phenomenon is known as freezing point depression. Freezing point depression occurs because the addition of solutes to the solvent increases the energy required for the molecules to form the solid lattice structure associated with freezing. As a result, the temperature has to be lowered to the point where it can provide enough energy to form the lattice, and this is the freezing point of the solution.
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analyze the spectra, assigning all of the major peaks. what are the expected impurities in these reactions? do you see them in the spectra?
Spectra analysis is the process of interpreting the information contained in a spectrum, such as a mass, IR, NMR or Raman spectra. The peaks in a spectrum represent specific molecular species or functional groups, and the assignment of these peaks to specific compounds or functional groups is an important part of spectra analysis.
About SpectraThe emission spectra or emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a transition from a high energy state to a lower energy state.
In chemical reactions, impurities are often produced as byproducts and can interfere with the desired outcome. Some common impurities include unreacted starting materials, side products, contaminants, and degradation products. Whether or not these impurities are visible in a spectrum depends on the sensitivity of the instrument and the specific spectra being analyzed.
If you provide me with more specific information about the spectra you're analyzing, I would be happy to provide more information.
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what features about the following lewis structure make this structure very unlikely to contribute much to the bonding in nco?
CN- And O+ be applied features about the following lewis structure make this structure very unlikely to contribute much to the bonding in nco.
Lewis structures, additionally known as Lewis dot formulas, Lewis dot systems, electron dot systems, or Lewis electron dot systems (LEDS), are diagrams that show the bonding among atoms of a molecule, in addition to the lone pairs of electrons that can exist in the molecule. A Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. The Lewis structure turned into named after Lewis structures extend the concept of the electron dot diagram by adding traces among atoms to symbolize shared pairs in a chemical bond.
Lewis systems display every atom and its role in the structure of the molecule through the use of its chemical symbol. lines are drawn among atoms that can be bonded to each other (pairs of dots may be used in preference to strains). extra electrons that form lone pairs are represented as pairs of dots and are placed subsequent to the atoms.
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concentrated hydrochloric acid has a density of 1.19 g/ml and a concentration of 38% by mass. what is the molarity of acid in the solution?
The molarity of the hydrochloric acid in the solution can be calculated by dividing the mass of the acid (38 g) by its molar mass (36.5 g/mol) and then dividing that number by the volume of the solution (1000 mL). This gives a molarity of 0.104 mol/L.
Concentrated hydrochloric acid is a solution of hydrogen chloride (HCl) in water. It is a highly corrosive, strong mineral acid with many industrial uses. It is used in the production of chlorides, fertilizers, and dyes, in electroplating, and in the photographic, textile, and rubber industries.
It is also used to clean metals and as a laboratory reagent. Concentrated hydrochloric acid is a corrosive liquid and contact with the skin and eyes should be avoided. Inhalation of the fumes of the acid should also be avoided.
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a 25.0 ml sample of concentrated h3po4 (14.7 m) is diluted to a final volume of 750.0 ml. what is the molarity of the final solution? group of answer choices
The molarity of the final solution is 0.368 M.
Phosphoric acid, also known as orthophosphoric acid, monophosphoric acid, or phosphoric(V) acid, is an inorganic solid with the chemical formula H3PO4 that contains phosphorus.
This can be calculated using the equation [tex]M1V1 = M2V2,[/tex]
where [tex]M1[/tex] is the molarity of the concentrated [tex]H3PO4 (14.7 M)[/tex]
[tex]V1[/tex] is the volume of the concentrated [tex]H3PO4 (25.0 mL)[/tex]
[tex]M2[/tex] is the molarity of the diluted solution (unknown)
and [tex]V2[/tex] is the volume of the diluted solution, may be used to determine this [tex](750.0 mL)[/tex]
When the given numbers are plugged in, the result is
[tex](14.7 M)(25.0 mL) = M2(750.0 mL),[/tex]
[tex]M2 = 0.368 M.[/tex]
The Molarity of final solution is 0.368M
It is frequently found as an 85% aqueous solution, which is a syrupy liquid that is colourless, odourless, and non-volatile. It is a significant industrial chemical that is used in several fertilisers.
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complete question:
A 25.0 mL sample of concentrated H3PO4 (14.7 M) is diluted to a final volume of 750.0 mL. What is the molarity of the final solution?
Group of answer choices
0.368
0.750
0.490
0.980
what are the lightest or least massive of the fundamental atomic particles? group of answer choices uranium nuclei neutrons protons electrons
The lightest or least massive of the fundamental atomic particles are electrons. Correct answer: letter E
Electrons have a mass of 9.109 × 10^−31 kg, which is much smaller than the masses of protons (1.672 × 10^−27 kg) and neutrons (1.674 × 10^−27 kg).
The amount of energy an electron has is related to its location within an atom. Electrons can exist in discrete energy levels, and can be moved between them by providing energy in the form of light or heat. This movement of electrons between energy levels is responsible for most of the physical and chemical properties of atoms and molecules. Electrons can also form bonds between two atoms, allowing them to form molecules and compounds.
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what two types of energy is usually a product of combustion reactions?
When a material combines with oxygen gas, it produces electricity in the form of both heat and light. These two energies combine to generate a flame.
What are the uses of oxygen?The energy-producing process that powers the metabolic functions of most living organisms, respiration, depends heavily on oxygen. All living things, including humans, depend on the air that you breathe to survive.
Or is oxygen a gas?Since oxygen has an atomic number of 8 and the official chemical symbol O, an oxygen atom contains eight particles in its nuclei. At room temperature, oxygen is a gas that has no flavor, color, or odor. In nature, oxygen exists as a molecule.
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5. the reaction between ethyl bromide (c2hbr) and hydroxide ion in ethyl alcohol at 330k: c2h5br (aq) oh-1 (aq) c2h2oh (l) br-1 (aq) is first order each in ethyl bromide and hydroxide ion. when [c2h5br] is 0.0477 m and [oh-1] is 0.100 m, the rate of disappearance of ethyl bromide is 1.7 x 10-7 m/s. (c) how would the rate of disappearance of ethyl bromide change if the solution were diluted by adding an equal volume of pure ethyl alcohol to the solution?
The value of the rate constant is 3.6×[tex]10^{-5} m^{-1} s^{-1}[/tex].
The rate law is:
Rate = k[C2H5Br][OH-]
Substituting values given :
1.7× [tex]10^{-7[/tex] = k × 0.0477×0.100
Rate constant k= 3.56×[tex]10^{-5} m^{-1} s^{-1}[/tex]≈ 3.6×[tex]10^{-5} m^{-1} s^{-1}[/tex]
A chemical response is a manner that leads to the chemical transformation of 1 set of chemical substances to any other. Classically, chemical reactions embody modifications that handiest involve the positions of electrons inside the forming and breaking of chemical bonds among atoms, without exchange to the nuclei (no change to the factors gift), and may regularly be described with the aid of a chemical equation. Nuclear chemistry is a sub-area of chemistry that involves the chemical reactions of risky and radioactive elements where both electronic and nuclear modifications can arise.
The substance (or materials) initially worried in a chemical reaction are called reactants or reagents. Chemical reactions are commonly characterized by using a chemical trade, and they yield one or greater merchandise, which usually have residences exclusive from the reactants. Reactions often encompass a sequence of man or woman sub-steps, so-referred to as fundamental reactions, and the statistics on the correct path of movement are part of the response mechanism.
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Complete Question:
The reaction between ethyl bromide (C2H5Br) and hydroxide ion in ethyl alcohol at 330 K, C2H5BR(alc) + OH-(alc) --> C2H5OH(l) + Br-(alc), is first order each in ethyl bromide and hydroxide ion. When [C2H5Br] is 0.0477 M and [OH-] is 0.100 M, the rate of disappearance of ethyl bromide is 1.7 x 10^-7 M/s.What is the value of the rate constant?
how many milligrams of iron(iii) chloride result when 13.1 mg of iron is reacted with an excess of chlorine gas?
Answer: 38.1 mg
Explanation:
Step 1: Write the equation for the reaction.
Fe (s) + Cl₂ (g) ⇒ FeCl₃ (s)
Step 2: Balance the equation.
2 Fe (s) + 3 Cl₂ (g) ⇒ 2 FeCl₃ (s)
Step 3: Convert 13.2 mg iron into moles iron.
13.1 mg x (1 g/1000 mg) x (1 mol/55.8 g) = .000235 mol Fe
Step 4: Use the balanced equation from step 2, the moles of Fe from step 3, and the molar mass of FeCl₃ to find the moles FeCl₃.
1 mole FeCl₃ = 162.2 g/mol
.000235 mol Fe x (2 mol FeCl₃/2 mol Fe) x (162.2 g FeCl₃/1 mol FeCl₃) = 0.0381 g FeCl₃
Step 5: Convert grams FeCl₃ to milligrams FeCl₃.
1 g = 1000 mg
0.0381 g FeCl₃ x 1000 mg/1 g = 38.1 mg
what level of protein structure is associated with the sequence of amino acids?
The primary structure of a protein is only the arrangement of the amino acids within a polypeptide chain.
The definition of primary structure.A chain of such amino acids arranged in a linear fashion makes up the main structure. Areas of amino acid chains which are stabilized via hydrogen bonds from of the polypeptide backbone are found in the secondary structure. The secondary structure is produced by these hydrogen bonds as alpha-helixes and beta-pleated sheets.
What purpose does the primary structure serve?Protein's primary structure. The precise arrangement of amino acids in the chains that make up proteins' primary structures. As the final fold and hence the function of a protein are determined by the precise sequence of the proteins, it is crucial.
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In the kinetics of an iodine clock reaction procedure, the initial rate is calculated by multiplying the initial concentration of ______________ by half, and dividing by the elapsed time as measured with a ____________
In the kinetics of an iodine clock reaction procedure, the initial rate is calculated by multiplying the initial concentration of thiosulfate by half, and dividing by the elapsed time as measured with a stop watch.
Chemistry classes frequently employ the "clock reaction" to examine the rate at which reactions occur because of its striking color change from colorless to blue. When I2 and starch interact, a dark blue iodine/starch complex is created, which causes the color to change. With the aid of a stopwatch, the pace of reaction can be precisely calculated by noting the moment the blue complex first emerges.
The method of beginning rates is used in this experiment to establish the rate law for a reaction.
The primary reaction to be investigated is the oxidation of I- by S2O82-(persulfate) in aqueous solution, or the "iodine clock reaction":
Slow, rate-determining step in equation 1: 2I- (aq) + S2O82- (aq) I2 (aq) + 2SO42- (aq).
Equation 2's fast step: I2 (aq) + 2S2O32- 2I- (aq) + S4O62-
When the primary reaction produces a particular quantity of I2, the "clock" reaction will signal. Equation 2's molar ratio can be used to compute the amount of I2 produced prior to the color change from the known addition of S2O32-. The rate at which the concentration of I2 changes over time is calculated using Equation 1.
Thiosulfate and Stop Watch are the proper choices. As a result, the complete statement will read as follows: "In the kinetics of an Iodine Clock Reaction process, the Initial rate is computed by multiplying the initial concentration of the thiosulfate by half, and dividing by the elapsed time monitored using a stop watch."
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what is the empirical formula of a compound containing 35.4% of sr and 64.6% of br
A chemical with a formula of SrBr2 will contain 35.4% sr & 64.6% br, in accordance with the stated assertion.
SrBr2 is what kind of a compound?Chemically, strontium bromide has the chemical SrBr2. It is an inorganic compound that is white and odorless at room temperature. In a lab experiment, strontium bromide produces a vivid red color that shows the presence of potassium ions. Along with being utilized in flares, it also has some medical use.
In this case, we first convert the percent composition to moles:
35.4 g Sr / 87.62 g/mol = 0.404 mol Sr
64.6 g Br / 79.904 g/mol = 0.808 mol Br
0.808 mol Br / 0.404 mol Sr = 2.00
Sr:Br = 1:2
So, the empirical formula of the compound is SrBr2.
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find the molarity of 0.585g nacl present in 500 ml of solution. select one: a. 0.01 m. b. 0.02 m c. 0.1 m. d. 0.2 m.
The molarity of 0.585g of NaCl present in 500 mL of solution is d. 0.2 M. It can be calculated using the formula:
Molarity = moles / volume.
To find the molarity, you need to first find the number of moles of NaCl present in the solution.
This can be done using the formula:
moles = mass / molar mass
Where molar mass of NaCl = 23 + 35.5 = 58.5 g/mol
moles = 0.585g / 58.5 g/mol = 0.01 mol
Next, you need to find the volume of the solution in liters.
Volume = 500 mL = 0.5 L
Finally, the molarity can be found using the formula:
Molarity = moles / volume
Molarity = 0.01 mol / 0.5 L = 0.02 M = 0.2 M
Molarity is a unit of concentration that expresses the number of moles of solute (in this case, NaCl) per liter of solution. It is commonly used in chemistry to quantify the amount of solute in a solution.
To calculate molarity, you need to know the number of moles of solute and the volume of the solution. In this case, the number of moles was calculated by dividing the mass of NaCl by its molar mass. The volume of the solution was converted from milliliters to liters.
Finally, molarity was calculated by dividing the number of moles of solute by the volume of the solution. The answer, 0.2 M, represents that there are 0.2 moles of NaCl in every liter of the solution.
It's important to note that the molarity of a solution depends on the amount of solute and the volume of the solution, so it can change if either of these values change.
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a solution is prepared by dissolving 17.75 g sulfuric acid, h2so4, in enough water to make 100.0 ml of solution. if the density of the solution is 1.1094 g/ml, what is the mole fraction h2so4 in the solution?
if the density of the solution is 1.1094 g/ml, then the mole fraction [tex]H_{2}SO_{4}[/tex] in the solution is 0.0016.
The molar mass of (98.08 g/mol) can be used to calculate the number of moles:
moles of [tex]H_{2}SO_{4}[/tex] = mass / molar mass
moles of [tex]H_{2}SO_{4}[/tex] = 17.75 g / 98.08 g/mol = 0.1810 mol
The total mass of the solution can then be calculated using the density of the solution (1.1094 g/ml):
mass of solution = density x volume
mass of solution = 1.1094 g/ml x 100 ml = 111 g
Finally, the mole fraction of [tex]H_{2}SO_{4}[/tex] in the solution can be calculated by dividing the number of moles of [tex]H_{2}SO_{4}[/tex] by the total number of moles of solute in the solution:
In the solution, the mole fraction of [tex]H_{2}SO_{4}[/tex] is approximately 0.0016.
mole fraction [tex]H_{2}SO_{4}[/tex] = moles [tex]H_{2}SO_{4}[/tex] / (moles [tex]H_{2}SO_{4}[/tex] + moles water)
mole fraction [tex]H_{2}SO_{4}[/tex] [tex]= \frac{0.1810}{\frac{(0.1810+(111-17.75)}{18} } = 0.0016[/tex]
Because we have assumed that the density of water is close to 1 g/mL, we can calculate the moles of water in the solution by dividing the mass of water by its molar mass (18 g/mol).
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what chemistry strategies did you employ to maximize the volume of co2 produced by sodium bicarb and acetic aci?
A reaction between sodium acetate, acetic acid, and sodium bicarbonate occurs. Carbon dioxide gas was produced when liquid vinegar was added to the solid baking soda.
When sodium bicarbonate and acetic acid combine, how much CO2 is released?Once the carbonic acid has broken down, water and carbon dioxide, or CO2, will be released. This results in 4.4 g of carbon dioxide being produced from the reaction of 8.4 g of sodium bicarbonate and 20 g of acetic acid.
Baking soda and vinegar combined, how much CO2 is produced?In the reaction of 5 cm3 baking soda and 100 cm3 vinegar, 0.083 moles of CO2 gas and 0.083 moles of sodium acetate should be produced, whereas 0.01 moles of sodium bicarbonate should remain unreacted.
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an electron in an orbital that penetrates close to the nucleus will tend to experience a higher effective nuclear charge than one that does not. True or False ?
True. There is a tendency for an electron in an orbital that enters the nucleus to have a larger effective nuclear charge than an electron in an orbital that does not.
What is electrons?Outside of an atom's nucleus, electrons are negatively charged particles that make up the atom. They are in charge of an atom's chemical and physical properties and inhabit the electron shells or orbitals of an atom.
This is due to the higher attraction between an electron and the positive charge of the nucleus the closer the electron is to the nucleus. The actual nuclear charge less the shielding provided by the electrons in the inner shells is the effective nuclear charge that an electron experiences. Due to the shielding effect of the inner electrons, electrons that are further from the nucleus suffer a decreased effective nuclear charge. Because of this, electrons in orbitals that enter the nucleus closely will have a larger effective nuclear charge and be more tightly bonded to the nucleus, compared to electrons in orbitals that enter the nucleus more distantly.
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of the bonds c-c, cc, and cc, the c-c bond is . a. strongest/shortest b. strongest/longest c. weakest/longest d. weakest/shortest e. intermediate in both strength and length
Of the bonds C-C, C=C, and C≡C, the C-C bond is the weakeast and longest. The correct answer is C.
A covalent link between two carbon atoms is known as a carbon-carbon bond. The single bond, which consists of two electrons—one from each of the two atoms—is the most prevalent type. One hybridized orbital from each of the carbon atoms contributes to the formation of the carbon-carbon single bond, which is known as a sigma bond.
A triple bond made of carbon atoms has the highest bond energy since it is the strongest bond. A carbon-carbon single bond has the lowest bond energy since it is the weakest bond.
C≡C > C=C > C−C. is the proper order for the bond energies of C≡C, C=C, and C−C bonds.
Your question is incomplete but most probably your full question was
Of the bonds C-C, C=C, and C≡C, the C-C bond is
a. strongest/shortest
b. strongest/longest
c. weakest/longest
d. weakest/shortest
e. intermediate in both strength and length
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there are two naturally occurring isotopes of chlorine. cl35 has a mass of 34.9689 u.cl37 has a mass of 36.9659 u. cl 35 has a mass of 34.9689 u. cl 37 has a mass of 36.9659 u. determine the abundance of each isotope.
The abundance of chlorine-35 isotope is 34.964 u and that of chlorine-37 isotope is 55.44 u.
What are isotopes?Isotopes are defined as substances having same number of protons but different number of neutrons.Number of protons is characteristic for determining position of elements in the periodic table.
Since,all isotopes have the same number of protons and hence have same position.They have similar chemical properties as they have same number of electrons.
They find applications in the field of nuclear medicine and oil and gas research . There are 2 types of isotopes : stable and unstable
Abundance of chlorine-35= 34.9689×2/2=34.964 u and that of chlorine -37 is 36.9659×2/2=55.44 u.
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true or false. orbitals are a delocalized cloud of electron density
According to It is accurate to say because orbitals are just a delocalized clouds of electron density, as stated .
What are orbitals and instances of them?Orbital is a mathematical equation, also known as a plane wave, that represents the characteristics of a group of nuclei, such as a molecule, or an atomic nucleus, when enough than two electrons are present.
Do orbitals go by SPDF?Spdf or SPDF may refer to the names of the subshells or orbitals, as well as the octet, for which there is old obsolete method of classifying spectral lines as "sharp," "primary," "diffuse," and "fundamental."
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assuming ideal solution behavior, what pressure of carbon dioxide is needed to maintain a co2 concentration of 0.10 m in a can of lemon-lime soda?
A pressure of 0.00305 atm of CO2 is needed to maintain a concentration of 0.10 M in a can of lemon-lime soda.
Assuming ideal solution behavior, the pressure of carbon dioxide required to maintain a concentration of 0.10 M in a can of lemon-lime soda can be calculated using the Henry's law constant.
Henry's law states that the pressure of a gas over a solution is proportional to the concentration of the gas in the solution. Mathematically, it can be expressed as:
P = k * C
where P is the pressure of the gas, C is the concentration of the gas in the solution, and k is the Henry's law constant.
Since the concentration of CO2 in the soda is 0.10 M, the pressure needed to maintain this concentration can be calculated as:
P = k x C
=> k x 0.10
The value of the Henry's law constant for CO2 in water varies with temperature, pressure, and the presence of other solutes. However, at 25°C and 1 atm pressure, the value of k is approximately 0.0305 M/atm.
So, the pressure of CO2 needed to maintain a concentration of 0.10 M in a can of lemon-lime soda at 25°C and 1 atm pressure is:
P = k x C
=> 0.0305 x 0.10
=> 0.00305 atm
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Separation of proteins in the first dimension of 2d gel electrophoresis is based on a protein’s molecular weight.a. True
b. False
True. The molecular weight of a protein determines how it is separated in the first dimension of a 2D gel electrophoresis.
What criteria does 2-D electrophoresis use to distinguish proteins?While two-dimensional gel electrophoresis separates proteins first on the basis of isoelectric point and secondly on the basis of size, one-dimensional SDS-PAGE separates proteins based on size.
How will the protein be separated using 2-D electrophoresis?In isoelectric focusing, proteins are first divided according to their isoelectric point (pl), then in a subsequent separation by SDS-PAGE, which separates proteins according to their molecular weight. Using high-throughput mass spectrometry, each protein spot on a 2D electrophoresis may be eluted and identified.
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describe a situation (in 2-3 sentences) in which you would need to neutralize a chemical before discarding it down a drain.
A situation where it is necessary to neutralize a chemical before disposing of it because the chemical contains a compound that can affect nearby objects. For example, acid laboratory waste that needs to be neutralized before being discharged into the sewer. This is because acid solutions are corrosive so they can cause corrosion in water pipes.
What are the chemicals?A chemical substance or chemical, also known as a pure substance is a form of matter that has a constant chemical composition and characteristic properties.
The following are examples of some chemicals:
Carbon monoxide.Ammonia.Chlorine.Hydrochloric acid.Sulfuric acid.The disposal of chemicals is also not arbitrary because these chemicals can affect objects around them
As acid laboratory waste needs to be neutralized before being discharged into the sewer. This is because acid solutions are corrosive so they can cause corrosion in water pipes.
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How do you think the -OH on the end of the pentanol molecule will affect the surface tension? Will pentanol have greater surface tension, less surface tension, or about the same surface tension as pentane or hexane? Write a prediction in the space below, and then submit your answer to move to the next section.
The -OH on the end of the pentanol molecule will affect the surface tension as it will be higher as that of as pentane or hexane.
What is Surface tension?This is referred to as the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid.
It minimizes the surface area and the higher strength of the intermolecular force is present in the pentanol therefore the surface tension of the pentanol is more than surface tension of the pentane and hexane.
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millie mole combines 0.8 moles of a and 0.5 moles of b. how many moles of c will form in the reaction, assuming that all available reagents will be converted to product?
The amount of C that will develop is 0.5 moles since B is limiting. As a result, some A will remain after the reaction and all of the B will be consumed.
The mole ratios of the reactants and products are shown by the balanced chemical equation. We know that one mole of A interacts with one mole of B to generate one mole of C since the equation is balanced. As a result, the reaction will produce an identical amount of moles of C. Given that Millie Mole contains 0.8 moles of A and 0.5 moles of B, the quantity of C that may be generated depends on the amount of B, which acts as the limiting reactant. Since B is restricting, only 0.5 moles of C will grow. As a result, following the reaction, some A will be left behind and no B will be present.
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if 50 ml of 0.50 m nacl solution is diluted with water to a volume of 500 ml the new concentration of solution is: select one: a. 0.16 m b. 0.04 m c. 0.08 m d. 0.05 m
If 50 ml of 0.50 m nacl solution is diluted with water to a volume of 500 ml, The new concentration of the solution is 0.05 M (0.05 moles per liter).
To find the new concentration, you can use the equation for dilution:
C1V1 = C2V2
where,
C1 = the initial concentration,
V1 = the initial volume,
C2 = the final concentration,
V2 = the final volume.
Plug in the known values:
C1 = 0.5 M, V1 = 50 ml, V2 = 500 ml.
C2 = ... ? [M]
Rearranging the equation:
C2 = C1 x V1 / V2
C2 = 0.5 x 50 / 500
C2 = 0.05
So, the new concentration is 0.05 M, which is equivalent to option "d. 0.05 M".
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