WorksheetsChemistry : Solutions
Total questions: 20
Worksheet time: 20mins
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)
What is the vapor pressure of water at 298K if 50g of urea (NH2CONH2) is dissolved in 850g of water?
Which of the following solutions will have the highest boiling point?
1M NaCl
1M Glucose
1M MgCl2
1M Urea
What is the term for the process in which solvent molecules pass through a semipermeable membrane from a less concentrated solution to a more concentrated one?
Diffusion
Osmosis
Dialysis
Filtration
Calculate the osmotic pressure of a solution prepared by dissolving 25mg of K2SO4 in 2L of water at 25°C, assuming complete dissociation.
Which of the following statements is true about ideal solutions?
They show positive deviation from Raoult's law
They show negative deviation from Raoult's law
They obey Raoult's law over the entire range of concentration
They do not follow Henry's law
What is the mole fraction of benzene in a solution containing 80g of benzene and 100g of toluene?
Which of the following describes the effect of temperature on the solubility of gases in liquids?
Solubility increases with increasing temperature
Solubility decreases with increasing temperature
Solubility is unaffected by temperature
Solubility varies unpredictably with temperature
Calculate the mass of ascorbic acid (C6H8O6) required to lower the melting point of 75g of acetic acid by 1.5°C.
What is the definition of molality?
Moles of solute per liter of solution
Moles of solute per kilogram of solvent
Moles of solute per mole of solution
Moles of solute per cubic meter of solution
Which of the following pairs form a maximum boiling azeotrope?
Ethanol and water
Benzene and toluene
Nitric acid and water
Methanol and acetone
