Question

A 544 mg of a mixture of fluorene and benzoic acid was weighed out and subjected to an extraction and recrystallization. After this purification was completed the product crystals were dried and analyzed. The purification procedure produced 1.80 × 102 mg of fluorene and 196 mg of benzoic acid. Calculate the percent composition of this mixture.

Answer 1

To calculate the percent composition of the mixture, divide the mass of each component by the total mass of the mixture and multiply by 100. The percent composition of fluorene is 33.09% and the percent composition of benzoic acid is 36.03%.

Step-by-step explanation:

The percent composition of a mixture can be calculated by dividing the mass of each component by the total mass of the mixture and then multiplying by 100. In this case, we have 1.80 × 102 mg of fluorene and 196 mg of benzoic acid in a total mixture of 544 mg. The percent composition of fluorene can be calculated as (1.80 × 102 mg / 544 mg) * 100 = 33.09% and the percent composition of benzoic acid can be calculated as (196 mg / 544 mg) * 100 = 36.03%.