Calculate the mass of the unredacted benzaldehyde in the synthesis of benzoic acid and benzyl alcohol

Answer 1

The balanced chemical equation for the synthesis of benzoic acid and benzyl alcohol from benzaldehyde is:

2C7H6O + 2K2Cr2O7 + 3H2SO4 → 2C6H5COOH + 2C6H5CH2OH + K2Cr2(SO4)3 + 4H2O

From the equation, we can see that for every 2 moles of benzaldehyde (C7H6O) used in the reaction, we get 2 moles of benzoic acid (C6H5COOH) and 2 moles of benzyl alcohol (C6H5CH2OH).

The molar mass of benzaldehyde is 106.12 g/mol.

Given that the molar ratio of benzaldehyde to benzoic acid and benzyl alcohol is 2:2, we can calculate the mass of benzaldehyde required for the reaction as follows:

Benzaldehyde = 2 moles x 106.12 g/mol = 212.24 g

Therefore, the mass of unreacted benzaldehyde required for the synthesis of benzoic acid and benzyl alcohol is 212.24 grams.