The concept of \"like dissolves like\" is illustrated by which of the following?

Question

The concept of "like dissolves like" is illustrated by which of the following? A) I_2(s) is more soluble in CCI_4 than in water. B) CuSO_4(s) is more soluble in CCI_4 than in water. C) NaCI(s) is more soluble in CCI_4 than in water. D) CCI_4 is soluble in water. E) I_2(s) is more soluble in water than in CCI_4. An increase in the temperature of a solution usually A) increases the solubility of a gas in the solution. B) decreases the solubility of a gas in the solution. C) increases the solubility of a solid solute in the solution. D) Both choices A and Care correct. E) Both choices Band Care correct. Soda drinks bubble when the bottle is opened because A) the temperature of the soda increases. B) exposure to atmospheric pressure squeezes the carbon dioxide from solution. C) the partial pressure of carbon dioxide above the solution is reduced. D) atmospheric nitrogen molecules displace carbon dioxide molecules. E) the Henry's law constant changes due to the change in pressure. Two aqueous solutions are prepared: 2, 0 m Cu(NO_3)_2 and 2.0 m NaBr. Which of the following statements is true? A) The Cu(NO_3)_2 solution has a higher vapor pressure & higher boiling point than the NaBr solution B) The Cu(NO_3)_2 solution has a higher vapor pressure & lower boiling point than the NaBr solution. C) The Cu(NO_3)_2 solution has a lower vapor pressure & higher boiling point than the NaBr solution D) The Cu(NO_3)_2 solution has a lower vapor pressure & lower boiling point than the NaBr solution. E) None of the above statements is true. Which of the following has an effect on the magnitude of the equilibrium constant? A) removing products as they are formed B) adding more of a reactant C) adding a catalyst) D) increasing the pressure, in a gas-phase reaction E) change in temperature

Explanation / Answer

1.

CCl4 is a non-polar solvent and water is a polar solvent.

Thus, non-polar solvents dissolves more in CCl4 than water and polar solvents in water than CCl4.

This, is illustrated in the option A.

I2 is non-polar. It dissolves in non-polar solvent CCl4 than in water.

2.

An increase in temperate will increase the solubility of both gas and solid in solutions.

Thus, correct option is D

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