Question

The boiling point of water is 100.0°C at 1 atmosphere.

How many grams of chromium(II) iodide (305.8 g/mol), must be dissolved in 292.0 grams of water to raise the boiling point by 0.400°C? Refer to the table for the necessary boiling or freezing point constant.

Solvent	Formula	Kb (°C/m)	Kf (°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 chromium(II) iodide.

Answer 1