Reference no: EM131840668

1) The boiling point of ethanol, CH₃CH₂OH is 78.50 °C at 1 atmosphere and its K_bp value is 1.22 °C/m. A nonvolatile, nonelectrolyte that dissolves in ethanol is testosterone . 

How many grams of testosterone, C₁₉H₂₈O₂ (288.4 g/mol), must be dissolved in 285.0 grams of ethanol to raise the boiling point by 0.500 °C?

____________ g testosterone.

2) The normal freezing point of benzene, C₆H₆, is 5.50 °C and its K_fp value is 5.12 °C/m. A nonvolatile, nonelectrolyte that dissolves in benzene is estrogen (estradiol). 

If 11.53 grams of estrogen, C₁₈H₂₄O₂ (272.4 g/mol), are dissolved in 198.1 grams of benzene:

The molality of the solution is ___________m.

The freezing point of the solution is _________ °C.