Raoult's Law and Its Applications
Chemistry ⇒ Solutions and Colloids
Raoult's Law and Its Applications starts at 11 and continues till grade 12.
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See sample questions for grade 11
A binary solution contains 0.4 mol of A (P*A = 80 mmHg) and 0.6 mol of B (P*B = 60 mmHg). Calculate the total vapor pressure of the solution.
A solution contains 0.2 mol of solute and 0.8 mol of solvent. If the vapor pressure of pure solvent is 50 mmHg, what is the vapor pressure of the solvent in the solution?
A solution contains 0.3 mol of solute and 0.7 mol of solvent. If the vapor pressure of pure solvent is 70 mmHg, what is the relative lowering of vapor pressure?
A solution is made by dissolving 10 g of a non-volatile solute in 90 g of water. If the vapor pressure of pure water is 40 mmHg and the mole fraction of water is 0.95, calculate the vapor pressure of water in the solution.
A solution is prepared by mixing 0.5 mol of benzene (P*benzene = 100 mmHg) and 0.5 mol of toluene (P*toluene = 32 mmHg) at a certain temperature. Calculate the total vapor pressure of the solution assuming ideal behavior.
A solution of acetone and chloroform shows a vapor pressure lower than predicted by Raoult's Law. What does this indicate about the interactions between acetone and chloroform molecules?
A solution shows a total vapor pressure higher than predicted by Raoult's Law. What type of deviation is this?
Calculate the partial vapor pressure of component A if its mole fraction is 0.3 and its pure vapor pressure is 120 mmHg.
Describe a real-life application of Raoult's Law.
Describe how Raoult's Law is modified for solutions containing volatile solutes.
Describe the effect of temperature on the vapor pressure of a solution according to Raoult's Law.
Explain how Raoult's Law is used to determine the composition of vapor above a liquid solution.
Explain the difference between positive and negative deviations from Raoult's Law.
Explain the term 'ideal solution' in the context of Raoult's Law.
Explain why solutions of ethanol and water show deviation from Raoult's Law.
Explain why the vapor pressure of a solvent decreases when a non-volatile solute is added.
State Raoult's Law for an ideal solution.
