The mole fraction of a solute in solution is 0.1 at 298 K, molarity of this solution is the same as its molality. Density of the soltuion at 298 K is

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The mole fraction of a solute in solution is 0.1 at 298 K, molarity of this solution is the same as its molality. Density of the soltuion at 298 K is 2.0 g cm^(-3). The ratio of the molar masses of the solute and solvent is

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M_(B)/M_(A)=9
For details, constant Example 2.20 (Text part)