Substance A has a greater molar mass than substance B.If 50 g of substance A are dissolved in 250 g of water in one beaker,and 50 g of substance B are dissolved in 250 g of water in another beaker,then
A)the vapor pressure of solution A will be lower than the vapor pressure of solution B.
B)the solution of A will freeze at a lower temperature than the solution of B.
C)the two solutions will have the same vapor pressure.
D)the boiling point of solution A will be lower than the boiling point of solution B.
E)the solution of A will have a higher osmotic pressure than the solution of B.

Question

Quizplus · Accepted Answer

The boiling point of a solution is directly related to the amount of solute present in the solution. Since substance A has a greater molar mass than substance B, it will require more energy to bring it to a boil. Therefore, the boiling point of solution A will be higher than the boiling point of solution B.

Substance a Has a Greater Molar Mass Than Substance B