What could be a third quantum number of a 2p3 electron in phosphorus,
1922s22p63:23p3?
a. m = 3
b. m = -2
c. m = 2
o d. m;=-1
Answers
The third quantum number (m) for the 2p^3 electron in phosphorus can take the values -1, 0, or +1. None of the options provided (a. m = 3, b. m = -2, c. m = 2, d. m = -1) accurately represent the possible value for the third quantum number.
To determine the third quantum number (m) of a 2p^3 electron in phosphorus, we refer to the electron configuration representation:
1s^22s^22p^63s^23p^3
In the 2p subshell, there are three orbitals available: px, py, and pz. Each orbital can hold a maximum of two electrons due to the Pauli exclusion principle.
The third quantum number (m) represents the magnetic quantum number, which describes the orientation of an orbital in space. For a given p orbital, the possible values of m are -1, 0, and +1. The m values represent the different orientations of the px, py, and pz orbitals along the x, y, and z axes, respectively.
Since the 2p subshell has three electrons, one electron will occupy each of the three available p orbitals. Thus, we have one electron in the px orbital, one in the py orbital, and one in the pz orbital.
Therefore, the third quantum number (m) for the 2p^3 electron in phosphorus can take the values -1, 0, or +1. None of the options provided (a. m = 3, b. m = -2, c. m = 2, d. m = -1) accurately represent the possible value for the third quantum number.
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Related Questions
Please help me with this
Class 7
Answers
Answer:
a . Organ A is heart liquid B is blood
b. red is the colour of liquid B
c. the useful substance is oxygen and nutrients
d. carbon dioxide is the waste E
calculate the change in entropy that occurs in the system when 35.0 gg of isopropyl alcohol condenses from a gas to a liquid at the normal boiling point of isopropyl alcohol (82.30∘C,ΔHvap=39.9kJ/mol)(82.30∘C,ΔHvap=39.9kJ/mol).
Express your answer in joules per kelvin to three significant figures.
Answers
The change in the entropy which will occurs in the system when the 35.0 g of the isopropyl alcohol and condenses from the gas to the liquid is 65.4 JK⁻¹.
The entropy change is as :
ΔS = Q / T
Where,
Q is the total heat energy :
Q = n ΔH
Where,
n is the number of moles
ΔH is the enthalpy of vaporization
The mass of the isopropyl alcohol = 35 g
The moles of the isopropyl alcohol = mass / molar mass
The moles of the isopropyl alcohol = 35 / 60
The moles of the isopropyl alcohol = 0.583 mol
The entropy change = (39.9 × 10³ × 0.583) / 82.30 + 273
The entropy change = 65.4 JK⁻¹
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The average distance a gas particle travels between collisions (with the wall or another particle) is called its?
Answers
The average distance a gas particle travels between collisions (with the wall or another particle is called the mean free path.
According to the kinetic theory of gases, the particles of a gas (atoms or molecules) have the highest kinetic energy and travel at high speeds. At standard temperature and pressure, a gas particle can reach speeds of about 470m/s.
Despite the high speeds gas particles travel, it still takes a while for the fragrance of an opened perfume to diffuse to the other end of the room. This is because when moving, the molecules do not have a free path. They constantly collide with other particles and the walls of the container and change direction randomly. The average distance a single particle can travel without colliding with other particles, or the wall of the container is called the mean free path.
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If you are given a 50X TAE Buffer for electrophoresis how would you dilute the buffer to 1X working solution to prepare 3 litters.
(i) 1X TAE Buffer - stock ; (ii) 1X TAE Buffer - dH20
Answers
i) you would need 60 mL of the 50X TAE Buffer stock. ii)You would need 2940 mL of distilled water (dH2O) to make up the 1X TAE Buffer to a total volume of 3 liters.
To dilute the 50X TAE Buffer to a 1X working solution for a total volume of 3 liters, you would use the following calculations:
(i) 1X TAE Buffer - stock:
For a 1X TAE Buffer, the dilution factor is 50X. Since you want to prepare a total volume of 3 liters, the volume of the stock solution needed can be calculated as follows:
Volume of 50X TAE Buffer stock = (Final volume / Dilution factor)
= (3 L / 50)
= 0.06 L or 60 mL
Therefore, you would need 60 mL of the 50X TAE Buffer stock.
(ii) 1X TAE Buffer - dH2O: To make up the remaining volume with distilled water (dH2O), subtract the volume of the stock solution from the final volume:
Volume of dH2O = (Final volume - Volume of 50X TAE Buffer stock)
= (3 L - 0.06 L)
= 2.94 L or 2940 mL
Therefore, you would need 2940 mL of distilled water (dH2O) to make up the 1X TAE Buffer to a total volume of 3 liters.
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Which is the main ingredient of indo-chinese dish gobi manchurian?.
Answers
Answer:
cauliflower
Explanation:
Gobi manchurian is largely composed of cauliflower.
WILL GIVE 100 PTS!!!
What was alchemy?
A. An attempt to turn cheap metals into gold and develop potions using superstitious practices
B. A part of chemistry that experimented only with metals
C. An area of research that investigated all areas of science using
chemistry
D. An early form of chemistry based on experiments and evidence to
test ideas
Answers
Answer:
no se pero gana pls PorFAVORRRRRR.... DOXEADO TU IP 19503236
Answer:
A
Explanation:
study to change substances into other substances
hcn and kcn have similar chemical formulas. however, 0.1 m hcn has a ph of 5.2, while 0.1 m kcn has a ph of 11.2. why do these two compounds behave so differently when they dissolve in water? hcn has a great solubility. hcn is an acid, and kcn is a salt. kcn is much stronger base than hcn. hcn is a nonelectrolyte.
Answers
HCN is highly soluble in water,
With rising temperatures and in extremely saline environments, its solubility declines. HCN is a colorless gas and liquid with an odor reminiscent to bitter almonds, however not everyone can smell it. HCN is created in solution when the cyanide ion interacts with water.
What is HCN?
Prussic acid, also known as hydrogen cyanide, is a chemical substance having the formula HCN and the structural formula HCN. It is a colorless, very deadly, and combustible liquid that boils at 25.6 °C (78.1 °F), only barely over room temperature. Industrial-scale HCN production makes it a highly prized precursor to a wide range of chemical compounds, from medications to polymers. Production of potassium cyanide and adiponitrile, which are used in mining and polymers, respectively, has large-scale uses. Due to its liquid nature, it is more hazardous than cyanide compounds that are solid.
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I need help with these questions
Answers
The definition of astronomic bodies are indicated below with the sentences defining them.
What are astronomic bodies?Astronomic bodies are celestial objects that occur naturally in space.
Here are their definitions below:
a. Supernova exhibits strong gravitational pull such that no light can escape
b. A nebula a large cloud of gas or dust in space.
c. A white dwarf is what a medium-mass star becomes at the end of it's life.
d. Protostar is the earliest stage of a star's life.
e. Black dwarf is a star left at the core of a planetary nebula.
f. Neutron stars are the remains of a high mass star.
g. A supernova is what occurs when a red supergiant star explodes.
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an ionic compound has one al 3 as its cation. with which anion is it most likely paire?
Answers
When an ionic compound has one Al 3+ as its cation, it is most likely paired with the anion oxide (O2−).
The reason for this is that aluminum has three valence electrons in its outermost shell, which it can readily lose to become a cation with a +3 charge. Oxygen, on the other hand, has six valence electrons and can gain two electrons to become an anion with a charge of -2. When these ions come together to form an ionic compound, aluminum and oxygen ions combine in a 2:3 ratio to form a compound with the chemical formula Al2O3.In conclusion, an ionic compound that has one Al 3+ as its cation is most likely paired with the anion oxide (O2−).
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Which substance is a mixture?
table salt
gasoline
aluminum
carbon dioxide
Answers
Answer:
Answer is Gasoline
Gasoline is a fuel made from crude oil and other petroleum liquids. Gasoline is mainly used as an engine fuel in vehicles. Petroleum refineries and blending facilities produce motor gasoline for sale at retail gasoline fueling stations.
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At what degree of sloping dose soil erosion begin to taper off
Answers
There is no specific threshold or degree of slope steepness at which soil erosion abruptly begins to taper off
Soil erosion is influenced by various factors, including slope steepness, rainfall intensity, soil characteristics, vegetation cover, and land management practices. As slope steepness increases, the potential for soil erosion generally increases due to the gravitational force acting on the eroded materials. However, there is no specific threshold or degree of slope steepness at which soil erosion abruptly begins to taper off. The relationship between slope steepness and soil erosion is generally non-linear. At low slope angles, soil erosion tends to be minimal as the gravitational force is relatively weak. As the slope angle increases, soil erosion typically increases exponentially due to the increased force of gravity. Eventually, as the slope steepness continues to increase, soil erosion may reach a point of maximum potential where the erodibility of the soil and other factors become limiting factors. Beyond this point, the rate of soil erosion may start to taper off, but it does not completely stop. Instead, it may stabilize or decrease slightly compared to the maximum erosion potential observed at steeper slopes.
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Convert the cientific notation to decimal number. Type the correct anwer to the box. 4 x10-power over 5 cm =cm
Answers
The Scientific notation to decimal number , 4 × 10⁻⁵ cm = 0.00004 cm
given data as follows :
scientific notation number = 4 × 10⁻⁵ cm
to convert it in decimal for as :
4 × 10⁻⁵ cm = 4 × 1 / 10⁵ cm
4 × 10⁻⁵ cm = 4 × 1 / 100000 cm
4 × 10⁻⁵ cm = 4 × 0.00001 cm
4 × 10⁻⁵ cm = 0.00004 cm
so, the conversion of scientific notation to decimal form is given as : 4 × 10⁻⁵ cm = 0.00004 cm. scientific notation is the way of expressing long form to short form and decimal is long form.
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What is a Hypothesis?
Answers
Answer:
A hypothesis is a claim you make about what you think is going to happen in an experiment.
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<3
Which unit is not a measurement of volume?
cm^3
Ocm
Oml
OL
Answers
Answer:
cm is a measure of length not volume
Answer:
I think it's Cm:)
Hope this helps
Calculate the required values of the following solution0.5M Al(OH)3pH=pOH=[H30+]=[OH-]=
Answers
Answer:
pH= 14.17
pOH= -0.17
[H3O+]= 6.76x10^-15M
[OH-]= 1.5M
Explanation:
1st) It is necessary to write the dissociation equation:
\(Al(OH)_3\rightarrow Al^{+3}+3OH^-\)From the equation we can see that from 1 mole of Al(OH)3, 3 moles of OH- are dissociated. So, in this case, from the 0.5M solution, 1.5M of OH- will be produced (3x0.5M=1.5M).
We know that the concentration of OH- is [OH-]= 1.5M.
2nd) With the [OH-] we can calculate the pOH of the solution:
\(\begin{gathered} pOH=-log\lbrack OH^-\rbrack \\ pOH=-log(1.5M) \\ pOH=-0.17 \end{gathered}\)The pOH is -0.17.
3rd) Now we can calculate the pH of the solution:
\(\begin{gathered} pH+pOH=14 \\ pH=14-pOH \\ pH=14-(-0.17) \\ pH=14.17 \end{gathered}\)The pH is 14.17.
4th) Finally, we can calculate the concentration of H+:
\(\begin{gathered} 14.17=-log\lbrack H^+\rbrack \\ 10^{(-14.17)}=\lbrack H^+\rbrack \\ 6.76*10^{-15}M=\lbrack H^+\rbrack \end{gathered}\)So, the concentration of H+ is 6.76x10^-15M.
What term is given to a substance that can dissolve in a particular liquid? Insoluble Soluble Solvable What term is given to a substance that can dissolve in a particular liquid?
a.Insoluble
b.Soluble
c. Solvable
what's the answer
Answers
Answer:
The answerto your question is Soluble
g in the pre-lab table, you predicted the elution order of the ketones. did the chromatogram of the ketone mixture support your prediction? explain.
Answers
Yes, the chromatogram of the ketone mixture supported my prediction in the pre-lab table. This is because the elution order of the ketones was the same as what I predicted.
The chromatogram showed the different ketones eluting at different times, which supported my prediction. This is because different ketones have different affinities for the stationary phase and therefore elute at different times.
Overall, the chromatogram provided strong evidence that my prediction in the pre-lab table was correct.
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The Dead Sea is the saltiest sea in the world. It contains 332 gramsof salt per 1000 grams of water.What is the concentration in parts per million (ppm)?0.332 ppm332 ppm332,000 ppmo33,200 ppm
Answers
Answer
The concentration in parts per million (ppm) = 332,000 ppm.
Explanation
Given:
Mass of salt solute = 332 grams
Mass of water solvent = 1000 grams
What to find:
The concentration in parts per million (ppm).
Solution:
The concentration in parts per million (ppm) formula is:
\(ppm=\frac{mass\text{ }of\text{ }solute}{mass\text{ }of\text{ }solvent}\times10^6\)Plugging the values of the given parameters into the formula:
\(ppm=\frac{332}{1000}\times10^6=332,000ppm\)The concentration in parts per million (ppm) = 332,000 ppm.
Which statement correctly describes the relationship between thermal energy and particle movement?
1 As thermal energy increases, particle movement does not change.
2 As thermal energy increases, it is not possible to predict particle movement.
3 As thermal energy increases, there is less particle movement.
4 As thermal energy increases, there is more particle movement.
Answers
The correct statement that describes the relationship between thermal energy and particle movement is "As thermal energy increases, there is more particle movement".
WHAT IS THERMAL ENERGY?
Thermal energy is the energy that emanates from heat or change in temperature. Thermal energy is directly proportional to the movement of particles. This means that an increase in thermal energy depicts an increase in the kinetic energy (energy due to motion) of the particles involved.Hence, as thermal energy of substance increases, there is more particle movement of that substance.
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Which of the following statement best describes valence band and conduction band? Valence band is occupied with electrons and conduction band is empty. Valence band is empty and conduction band is occupied with electrons. Both valence band and conduction band are fully occupied with electrons. Both valence band and conduction band are empty.
Answers
Valence band is occupied with electrons and conduction band is empty best describes valence band and conduction band. It is the best statement to describes the valence band and conduction band
In a solid, valence bands and conduction bands are important energy ranges. Valence band is the energy band with the highest energy level electrons that are either partially filled or completely filled. When the electrons in the valence band absorb energy, they can move into the conduction band, which is the energy band above the valence band.
Conduction band is the lowest energy level that is vacant in the case of intrinsic semiconductors. They are almost empty for intrinsic semiconductors, while extrinsic semiconductors have a partially filled conduction band due to doping. The electrons in the conduction band are involved in conduction, and they can move freely throughout the solid's bulk material. The holes in the valence band are also involved in conduction and can move freely throughout the bulk material. When these holes and electrons are moving, they cause an electrical current.
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Producing sodium chloride (table salt) is impractical and expensive. Sodium
chloride can be extracted from seawater. How could this be
done using a common renewable energy source?
Answers
For the harvesting of salt from seawater, solar energy is used. To evaporate seawater, solar energy is used. As the concentration of the salt increases, it crystallizes.
What is renewable source of energy?Renewable energy is defined as energy derived from natural sources that is replenished at a faster rate than it is consumed.
Sunlight and wind are two examples of such constantly replenishing sources. Renewable energy sources are plenty and are all around us.
Solar energy is utilized to get salt from seawater. Solar energy is used to evaporate seawater. The salt crystallizes as its concentration increases.
Thus, this way, salt extraction can be done using a common renewable energy source.
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using an ice table, calculate the ph of a solution that is 0.175 m in nano2(aq) and 0.145 m in hno2(aq) .
Answers
With the aid of an ice table and the acid dissociation constant of nitrogen acid, the pH of a solution containing 0.145 M nitrogen acid and 0.175 M sodium nitrite may be determined. The outcome is roughly 3.17.
What is the pH of a solution?The acidity, alkalinity, and neutrality of a solution can all be determined using the pH scale. At 25 °C, a solution with a pH of 7 or less is acidic, one with a pH of 7 or more is neutral, and one with a pH of 7 or more is alkaline.
What factors affect a solution's pH?The pH neutrality relies on temperature, falling below 7 if the temperature rises above 25 °C. The pH value is not limited to zero.
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Question 11
Which formula represents a hydrocarbon?
C₂H6
C₂H5OH
C₂H5Cl
C₂H6O
Answers
Answer:
C₂H6
Explanation:
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A
A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:
A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.
B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.
D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.
In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A
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What is the meaning of overfishing?
Answers
Explanation:
Overfishing is the removal of a species of fish from a body of water at a rate that the species cannot replenish, resulting in those species becoming underpopulated in that area.
which isotopes would you expect to be stable?
Answers
Isotopes of elements having atomic number less than 20 and with a neutron to proton ratio of close to 1 are more likely to be stable.
What is an isotope?
Isotopes are two or more atom kinds that share the same atomic number (protons in the nucleus), placement in the periodic table, and chemical element but have distinct nucleon numbers (mass numbers) as a result of possessing a different quantities of neutrons in their nuclei. Although the chemical properties of each isotope of a given element are nearly identical, they differ in their atomic weights and physical characteristics. The atomic number of an atom is the sum of the number of protons in the nucleus and the number of electrons in a neutral (non-ionized) atom. The mass number of an atom is determined by the quantity of nucleons—both protons and neutrons—in its nucleus, and it varies for each isotope of a given element.
Isotopes of elements having atomic number less than 20 and with a neutron to proton ratio of close to 1 are more likely to be stable.
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HELP SOON POSSIBLEEEE
Answers
Answer:
1. atom
2. different
3. compounds
4. joined
5. separated
--
1. NT
2. ST
3. AT
--
1. subatomic
2. negative
3. Protons
4. neutrons
5. Nucleus
6. Rutherford
7. positive
8. electrons
--
1. T
2. T
3. F
4. T
Explanation:
look at the answer
Draw the neutral form of the nitrogen-containing molecule formed upon the acid-catalyzed hydrolysis of acetanilide in 6 M hydrochloric acid at reflux. Product(s):
Answers
Acid-catalyzed hydrolysis of acetanilide in 6 M hydrochloric acid is given below ;
It's important to realize that we are under acidic conditions and will be using a very strong hydrochloric acid as our acid of choice. Remember that strong acids completely ionize in solution, and so really what we have floating around in solution are hydrogen ions (or H+ ions).
(Fig 1 ; Steps 1 & 2 of Hydrolysis)
In the first step of the reaction, an acid-base reaction takes place between the oxygen of the carbonyl and one of our hydrogen ions. Notice that in terms of drawing the mechanism arrow to represent this process, the arrow goes from the oxygen (the electron donor) to the hydrogen ion (the electron acceptor).
Notice that after the first step we can draw a resonance structure that places a positive charge on the carbon atom. This helps to explain the second step when a molecule of water acts as a nucleophile (electron donor) to attack the carbon. After the water molecule attacks, a second water molecule acts as a base to pull off a hydrogen atom.
( ; Steps 3 & 4 of Hydrolysis)
At the start of our discussion, we compared an amide bond to a strong piece of rope. Once we get to our current point in the mechanism, the rope becomes very weak. That's because once the carbon-oxygen double bond is removed, the lone pair of electrons on the nitrogen atom is no longer able to participate in resonance, making it basic and more reactive. Think of it as a stripped down rope that is holding on by a few threads. Now the third step can happen, where the nitrogen atom attacks a hydrogen ion.
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Given abc with coordinates a(6-5), b(2, -2), and c(6-2). the ordered pair (x,-4.3) is on line ab. enter the value of x for this ordered pair
Answers
The ordered pair (x, -4.3) lies on line AB at x = 6.
What is an ordered pair?
An ordered pair is a pair of numbers or values written in a specific order, usually in the form (x, y). The order of the numbers is important, as it denotes their relationship within a coordinate system.
To determine the value of x for the ordered pair (x, -4.3) lying on line AB, we need to find the equation of the line AB and then substitute the y-coordinate (-4.3) to solve for x.
Given the coordinates of points A and B as A(6, -5) and B(2, -2), we can find the slope of the line AB using the formula:
slope (m) = (y₂ - y₁) / (x₂ - x₁)
m = (-2 - (-5)) / (2 - 6)
m = 3 / (-4)
m = -3/4
Using the point-slope form of a line equation, y - y₁ = m(x - x₁), we can substitute the coordinates of point A and the slope:
y - (-5) = (-3/4)(x - 6)
y + 5 = (-3/4)x + 9/2
y = (-3/4)x + 9/2 - 10/2
y = (-3/4)x - 1/2
Now, we substitute the y-coordinate of the given ordered pair (-4.3) into the equation and solve for x:
-4.3 = (-3/4)x - 1/2
-4.3 + 1/2 = (-3/4)x
-3.8 = (-3/4)x
x = (-3.8) / (-3/4)
x = (-3.8) * (-4/3)
x = 4
Therefore, the value of x for the ordered pair (x, -4.3) lying on line AB is x = 4.
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What mass of potassium nitrate is found in 542.41 mL of a 0.89 M aqueous sodium chloride solution? The molar mass of potassium nitrate is 101.10 g/mol.
Answers
Answer:
24.36 grams.
Explanation:
The boiling point of water is 100ºC. The boiling point of acetone is 56ºC. Which statement about distilling a mixture of acetone and water is correct?
Acetone remains in the original container.
Water will vaporize from the mixture before acetone.
Acetone is captured and cooled.
Water is collected as it leaves the mixture.
Answers
Answer:
Acetone is captured and cooled.
Explanation:
The boiling point of acetone is lower than that of water, so it will vaporise before water. Then acetone will be captured and cooled to separate it from its mixture with water.
The statement which is correct about distilling a mixture of acetone and water is as follows:
Acetone is captured and cooled.Thus, the correct option is C.
What is Distillation?Distillation may be defined as a procedure that generally involves the conversion of a liquid into a vapor that is eventually condensed back to liquid form. With the help of this process, the separation of components or substances from a liquid mixture by using selective boiling and condensation occurs.
Acetone has the lowest boiling point as compared to water. So, it boils faster than that water and vaporizes before water. After the termination of this process, the acetone will be predominantly captured and cooled to separate it from its mixture with water.
Therefore, the correct option for this question is C.
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