A solution is made by dissolving 0.741 mol of nonelectrolyte solute in 857 g of benzene. Calculate the freezing point, T¡, and boiling point, T,, of the solution. Constants can be found in the table of colligative constants.

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The freezing point of a solution that contains 1.1 g of an unknown compound, (A), dissolved in 12 g of benzene is found to be 2.97 °C. The freezing point of pure benzene is 5.48 °C. The freezing point depression constant of benzene is 5.12 °C/molal. What is the molecular weight of the unknown compound?

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A solution is made by dissolving 0.517 mol of nonelectrolyte solute in 839 g of benzene. Calculate the freezing point, T;, and boiling point, T,, of the solution. Constants can be found in the table of colligative constants. Tf = °C T, = °C

At a certain temperature the vapor pressure of pure heptane C7H16 is measured to be 178. torr. Suppose a solution is prepared by mixing 110. g of heptane and 90.9g of benzene C6H6.

The freezing point of pure benzene is 5.50^o C. A solution is made by dissolving 0.300 g of naphthalene, C10H8, in 15.00 g of benzene. Calculate the freezing point of this solution. Calculate the molarity of naphthalene in the resulting solution.

A general chemistry student isolated ciguatera toxin (a poisonous polyether produced by the dinoflagallete Gambierdiscus toxicus) from a red tide bloom off the coast of San Francisco, California. A partial structure of ciguatera toxin is shown below. The first steps in characterizing new substances typically involve determining physical properties. In a freezing point experiment, a 174.0 mg sample of pure ciguatera toxin was dissolved in 2.075 g of diphenylether (which has a freezing point = 26.8400 °C and a freezing point depression constant = 8.000 °C/m). The freezing point of the solution was observed to be 26.3302 °C. From this experiment, calculate the molar mass of ciguatera toxin.

Menthol is a crystalline substance with a peppermint taste and odor. When 0.555 g of menthol is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 2.96 C. Look up the freezing point and Kf constant for cyclohexane in the Colligative Constants table. Calculate the molar mass of menthol. g/mol molar mass:

Calculate the boiling point of a 8.00 m aqueous solution of ethylene glycol. Boiling point constants can be found in the list of colligative constants.