The molal freezing point constant of `C_6H_6` is 4.90 and its melting point is `5.51^@ C`. A solution of 0.816 g of a compound A dissolved in 7.5 g of benzene freezes at `1.59^@ C`.Calculate molecular weight of compound A.

Explanation

To calculate the molecular weight of compound A, we will follow these steps:

### Step 1: Calculate the depression in freezing point (ΔTf)
The depression in freezing point (ΔTf) can be calculated using the formula:
\[ \Delta T_f = T_f^{\text{initial}} - T_f^{\text{final}} \]
Where:
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