The boiling point of ethanol CH3CH2OH is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves...

The boiling point of ethanol CH₃CH₂OH is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in ethanol is estrogen (estradiol).

How many grams of estrogen, C₁₈H₂₄O₂ (272.4 g/mol), must be dissolved in 265.0 grams of ethanol to raise the boiling point by 0.500 °C ? Refer to the table for the necessary boiling or freezing point constant.

Solvent	Formula	K_b (°C/m)	K_f (°C/m)
Water	H₂O	0.512	1.86
Ethanol	CH₃CH₂OH	1.22	1.99
Chloroform	CHCl₃	3.67
Benzene	C₆H₆	2.53	5.12
Diethyl ether	CH₃CH₂OCH₂CH₃	2.02

g estrogen.

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queen_honey_blossom answered 6 months ago

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