#1
Which property depends on the number of solute particles rather than their identity?
Freezing Point Depression
ExplanationDepends on solute particles, not identity.
#2
What is the relationship between osmotic pressure and temperature?
Directly proportional
ExplanationOsmotic pressure increases with temperature.
#3
Which of the following is a colligative property?
Osmotic pressure
ExplanationOsmotic pressure is a colligative property.
#4
What is the significance of the Van't Hoff factor in colligative properties?
It accounts for the dissociation of solute particles.
ExplanationAccounts for solute dissociation.
#5
Which colligative property is applicable only to volatile solutes?
Vapor Pressure Lowering
ExplanationApplies to volatile solutes.
#6
What is the formula for calculating molality?
m = moles of solute / kilograms of solvent
ExplanationMolality = moles of solute / kilograms of solvent.
#7
Which colligative property is used in determining the molar mass of a solute in a non-volatile, non-electrolyte solution?
Osmotic Pressure
ExplanationUsed for determining molar mass in solutions.
#8
Which factor does not affect the colligative properties of a solution?
Pressure
ExplanationPressure does not affect colligative properties.
#9
What is the formula for calculating the change in freezing point (ΔTf) in a solution?
ΔTf = i * Kf * m
ExplanationChange in freezing point formula.
#10
What is the relationship between vapor pressure lowering and the number of solute particles in a solution?
Directly proportional
ExplanationVapor pressure lowering increases with solute particles.
#11
Which law is employed to calculate the vapor pressure of a solution?
Raoult's Law
ExplanationUsed to calculate vapor pressure.
#12
What is the Van't Hoff factor?
The ratio of actual moles of solute to the moles calculated from the formula
ExplanationRatio of actual to calculated solute moles.
#13
Which of the following statements is true regarding colligative properties?
Colligative properties are independent of the amount of solute present.
ExplanationIndependent of solute amount.
#14
Which colligative property is related to the phenomenon of boiling point elevation?
Boiling Point Elevation
ExplanationRelated to elevation of boiling point.
#15
In the formula for Raoult's law, what does the term 'χ' represent?
Mole fraction of the solvent
ExplanationRepresents mole fraction of solvent.
#16
What is the formula for calculating the boiling point elevation (ΔTb) in a solution?
ΔTb = i * Kb * m
ExplanationFormula for boiling point elevation.
#17
Which colligative property is affected by the presence of electrolytes in a solution?
Osmotic Pressure
ExplanationAffected by electrolytes.