Chemistry : Solutions

Which of the following is a colligative property?

• Density

• Boiling point elevation

• Viscosity

• Surface tension

What is the primary factor that determines the solubility of a gas in a liquid?

• Temperature

• Pressure

• Volume

• Density

According to Henry's law, the solubility of a gas in a liquid is directly proportional to:

• The mole fraction of the solute

• The partial pressure of the gas

• The volume of the solvent

• The temperature of the solution

Which of the following mixtures is an example of an ideal solution?

• Ethanol and water

• Benzene and toluene

• Acetone and chloroform

• Water and oil

What is the molality of a solution containing 222.6g of ethylene glycol (C2H6O2) in 200g of water?

• 5molkg^-1

• 10molkg^-1

• 15molkg^-1

• 20molkg^-1

Which law states that the relative lowering of vapor pressure of a solvent is equal to the mole fraction of the non-volatile solute?

• Raoult's Law

• Dalton's Law

• Henry's Law

• Boyle's Law

What is the molarity of a solution containing 30g of Co(NO3)2·6H2O in 4.3L of solution?

• 0.1M

• 0.2M

• 0.5M

• 1.0M

Which term is used to describe the concentration of a solution in terms of the number of moles of solute per kilogram of solvent?

• Molarity

• Molality

• Mole fraction

• Mass percentage

What is the mass percentage of a solution containing 22g of benzene in 122g of carbon tetrachloride?

• 10%

• 15%

• 20%

• 25%

Which of the following compounds would you expect to be most soluble in water?

• Ethanol (C2H5OH)

• Benzene (C6H6)

• Carbon tetrachloride (CCl4)

• Methane (CH4)