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finlep [7]
3 years ago
14

The density of a 20.3 m ch3oh (methanol) solution is 0.858 g/ml. what is the molality of this solution? h2o is the solvent.

Chemistry
1 answer:
aliina [53]3 years ago
6 0

The difference of molarity and molality is in the units:

Molarity is expressed in mol solute / L solution;

<span> while Molality is expressed in mol solute / kg solvent</span>

Since no other data is given, let us assume that the contribution of methanol on the total volume is negligible. So that,

Molality = (20.3 mol / L) (1 L / 0.858 kg)

Molality = 23.66 m

<span>The closest answer is letter C. 23.7 m</span>

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