Calculatate the mass of compound (molar mass = `256 g mol^(-1)` be the dissolved in 75 g of benzene to lower its freezing point by ` 0 .48 k(k_(f) = 5. 12 k kg mol ^(-1)` .

Explanation

To solve the problem, we need to calculate the mass of a compound that will lower the freezing point of benzene by 0.48 K. We will use the formula for depression of freezing point, which is given by:

\[ \Delta T_f = K_f \cdot m \]

Where:
- \(\Delta T_f\) = depression in freezing point (0.48 K)
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