Why do two layers form when solutions containing water are added to the extracted dichloromethane (CH2CI-2) solution?

Q: Explain the stages of the formation of crude oil and gas in a flow chart.

A: The stages of the formation of crude oil and gas

Q: All of these should be considered in choosing solvent for extraction except should be sparingly…

A: The selection of solvent of choice is an important step in extraction. It mostly depends on the…

Q: Assuming that its density is 1.000g/mL, what is the mass % concentration of a 0.1432M AgNO3 solution

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Q: A mixture containing ethanol (bp: 78 °C), acetone (bp: 56 °C), and ether (bp: 36 °C) undergoes…

A: To find: The true statement from the below a. Acetone is more volatile than ethanol but less…

Q: Which type of distillation is used for miscible liquids with very small gap of boiling temperature?…

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Q: The solubility of Ni3(PO4)2 in water at a particular temperature is 8.0 × 10-4 M. What is Ksp for…

A: Solubility means the maximum amount of solute that can be dissolved in given solvent. Factor…

Q: After water and benzene are mixed, we see two layers. A True False

A: After water and benzene are mixed, we see two layers.   This is a True statement.

Q: Decaffeinated coffee is produced by extracting the caffeine from coffee with a solvent. Initially…

A: CH2Cl2 solvent was used for extracting caffeine from coffee.

Q: could a solution form when Cl2NH is mixed with CCl4?

A: Solution :     Polarity is defined as a condition at which a molecule or atom possesses positive and…

Q: Why common salts such as sodium chloride (NaCl) and Calcium Chloride (CaC12) are preferred in cold…

A: CaCl2 is used to clear the snow from the roads in cold countries because it depresses the freezing…

Q: Which of these is NOT a criteria for selecting a good solvent for recrystallization? (A) Solvent…

A: Recrystallization is a process to purify compounds. It is based on the solubility. The principle is…

Q: Explain the difference between saturated and unsaturatedsolutions.

A: Solution: It can be defined as that the homogeneous mixture of two or more substances. For example:…

Q: Hydrophobic colloids are stabilized in water by adsorbed anions. Explain with an example?

A: Hydrophobic colloids are stabilized in water by adsorbed anions has to be explain with an example,

Q: Why would buffered solution tests be compared to distilled water?

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Q: A mixture of 6.0 g acetinilide and 4.0 g aniline is to be separated using 100 mL of water as…

A: Amount of acetanilide in mixture before separation = 6.0 g        Amount of aniline in mixture…

Q: Why does it take a long time for a polymer (PVA) to dissolve in water when a similar mass of sugar…

A: A polymer will take long time to dissolve in water but compounds such as sugar (sucrose) or NaCl…

Q: 1. What is the effect of varying the amount of solvent on the electrical conductivity of solution?…

A: 1. The more concentrated a solution is, the higher the conductivity is. In most cases it is a…

Q: Why do you need to add sodium carbonate in the extraction process of tea bags?

A: A question based on analytical separations that is to be accomplished.

Q: Which solvent, water or carbon tetrachloride, would you choose to dissolve each of the following? a.…

A: Solubility of organic compounds is based on the principle of "like dissolves like". In accordance…

Q: Which of the following solvents is the best to use for recrystallization of Solute A? Hexane…

A: The recrystallization technique is generally used to purify of any compound in a proper solvent. The…

Q: Which of the following refers to a composition in which its components cannot be separated by…

A: Distillation :- It is a method of separation of mixture of liquids based on their difference in…

Q: Suppose that a volume of 5.0 cm³ of acetic anhydride (density = 1.08 g·cm⁻³, molar mass = 102.087…

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Q: Identify 2 sources of errors in each of the steps in making of a solution. Explain whether a…

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Q: Briefly explain any tw (2) dispersion method in preparing sols.

A: Mechanical dispersion method: In this method, the large particles of the material whose sol is to be…

Q: Describe how to prepare  100 mL of approximately 60% (w/v) NaOH from solid NaOH

A: Given :-  %(w/v) of NaOH solution = 60%  Volume of solution = 100 mL  To describe :-  Its…

Q: Which solvent, water or carbon tetrachloride, would you choose to dissolve each of the following? a.…

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Q: What are emulsions? Name an emulsion in which water is a dispersed phase.

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Q: Explain the difference of the distillation curves between simple distillation and fractional…

A: Simple distillation is the technique which is used to separate the components presents in a liquid…

Q: Describe the steps to prepare 100.00ml of 2.00M H2SO4 from a concentrated 5.00M H2SO4 solution using…

A: Dilution gets used for decreasing any particular soluton's concentration. This process holds…

Q: What volume of water at 20.0 °C (d = 0.9982 g cm-3) is needed to dissolve 47.1 g of sucrose to make…

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Q: Out of water, ethnaol, and pentane, i think pentane would be a good solvent at room temperature for…

A: The process which is used to purify the impure compound from a solvent is known as recrystallisation…

Q: the differences between a Stober procedure and a water/oil emulsion procedure

A: In this question we have to describe the differences between a stober procedure and a water oil…

Q: 1. Explain how distillation works in separating simple mixtures. 2. Differentiate simple…

A: By distillation technique,  mixture of volatile substances having different boiling points can be…

Q: 13.) The vapor pressure of water at 31°C is 33.4 mmHg. Calculate the vapor pressure of water over a…

A: Raoult's law states that the vapour pressure of solution (Psolution) is directly proportional to the…

Q: Why do proteins form precipitates under some conditions and gels under others?

A: Protein precipitation means process in which it is separated from any extra material that is mixed…

Q: explain solvent solvent interaction and solvent solute interaction in 10 pages

A: Solute+ solvent → solution (a homogeneous mixture). Remember like dissolves like. In general polar…

Q: Briefly describe the principles for separating the components of a mixture by solvent extraction.

A: Extraction is the process of separation of substances from its aqueous solution by shaking with a…

Q: Which type of distillation is used for a mixture where a component is highly volatile? O Fractional…

A: Distillation is the process of separation of two-component in the mixture. The different…

Q: Describe the characteristics that a crystal obtained through recrystallization must have, the final…

A: Recrystallization is basically a purification technique. Recrystallization is a process in which the…

Q: All of the following is true about crystallization EXCEPT * A common practice is to dissolve the…

A: Ans. Crystallization is the process of obtaining the pure crystals of the sample from the sample…

Q: 24 g of sodium hydride were added to 1 L.of water. The result solution reacted with 100 ml of water…

A: Moles of NaOH added in the solution =Mass of NaOH addedMolar mass of NaOH=24 g40 g/mol=0.6 mol

Q: Why should Ne be less soluble in water than 02? Please choose the answer the best explains the…

A: The solubility of any covalent compound is based on the intermolecular forces of attraction. More…

Q: Why does micelle formation take place when soap is added to water? Will a micelle be formed in other…

A: When we will add soap in water. There are two ends of soap molecule, one end is hydrocarbon chains…

Q: 22. Why is the "bolling chips" used in the process of distillation? * O To get the stable bolling…

A: Distillation is the process of separation of two liquids which have difference in their boiling…

Q: 12 g of compound “Y” dissolves in 10 ml of acetone at 25 oC and 0.85 g of the same compound…

A: The impure sample can be purify using the recrystallization technique that involves preparation of…

Q: What volume of water at 20.0 °C (d = 0.9982 g cm3) is needed to dissolve 36.1 g of sucrose to make a…

A: What volume of water at 20.0°C (d = 0.9982 g cm 3) is needed to dissolve 36.1 g of sucrose to make a…

Q: Determine the mole fraction of p-dichlorobenzene dissolved in 1.00L of cyclohexane that shifts the…

A: Here, we have to determine mole fraction and mass of p-dichlorobenzene (solute) dissolved in 1.00L…

Q: 1. List the order of IMF's (lowest to highest) of the organic liquids you used in part 1. Explain…

A: IMF is intermolecular forces present in the molecules such as vanderwaal forces , hydrogen bonding,…

Q: Which type of distillation is used for miscible liquids with large gap of vapor pressure? Simple…

A: Thankyou for submitting an excellent question. Since you have asked multiple questions, we will…

Q: Q1) In the paper chromatography experiment, calculate the relative mobility for the two colors if…

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