124. Задачка по химии №012 429

4.3 At 20 C, the vapor pressure over pure carbon disulfide is 39.7 kPa, and over a solution containing 5.168 g of benzoic acid in 100 g of carbon disulfide, 39.1 kPa. Calculate the molecular weight of benzoic acid, compare the found value with the table and explain the result.

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