The solubility of a gas in a solvent with which it does not react is: The molecu

Question

The solubility of a gas in a solvent with which it does not react is:The molecular mass of glucose is 180 g/mol and that of sucrose is 342 g/mol. Assuming ideal behavior, a plot of freezing point vs. molal concentration of sucrose would: (a) be linear with a slope equal to that for a similar plot for glucose. (b) be linear with a slope equal to twice that for a similar plot for glucose. (c) be linear with a slope equal to one half that for a similar plot for glucose. (d) be nonlinear with rate of curvature twice that for a similar plot for glucose. The solubility of a gas in a solvent with which it does not react is:The molecular mass of glucose is 180 g/mol and that of sucrose is 342 g/mol. Assuming ideal behavior, a plot of freezing point vs. molal concentration of sucrose would: (a) be linear with a slope equal to that for a similar plot for glucose. (b) be linear with a slope equal to twice that for a similar plot for glucose. (c) be linear with a slope equal to one half that for a similar plot for glucose. (d) be nonlinear with rate of curvature twice that for a similar plot for glucose.

Explanation / Answer

Freezing point experiment

Given the molar mass of glucose is 180 g/mol and that of sucrose is 342 g/mol.

Assuming ideal behavior, a plot of freezing point vs. molal concentration of sucrose would be,

(c) be linear with a slope equal to one half that for a similar plot for glucose.

freezing point is inversely proportional to molar mass of solute. So as mass increases, freezing point decreases.

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