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On dissolving 0.25 gof a non-volatile su...

On dissolving `0.25 g`of a non-volatile substance in`30 mL` benzene `(density 0.8 g mL^(-1))`, its freezing point decreases by `0.25^(@)C` . Calculate the molecular mass of non-volatile substance `(K_(f) = 5.1 K kg mol^(-1))`.

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To solve the problem, we will follow these steps: ### Step 1: Calculate the mass of the solvent (benzene) We know the density of benzene and its volume. The mass can be calculated using the formula: \[ \text{Mass} = \text{Density} \times \text{Volume} \] ...
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