Vasiliev Chapter 6 Problem 56

Vasiliev Chapter 6 Problem 56

6.56. To determine salicylic acid, a sample of the pharmaceutical preparation weighing 0.2102 g was transferred to a Na2CO3 solution, iodine was added, and tetraiodophenylenequinone (C6H2I2O)2 was precipitated. The mass of the resulting sediment was 0.5175 g. Calculate the mass fraction (%) of salicylic acid C6H4(OH)COOH in the preparation.

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