Phenol (C6H5OH) has a molar mass of 94 g/mol. What mass of phenol contains 3.01 × 10²³ molecules?
Q1. Phenol (C6H5OH) has a molar mass of 94 g/mol. What mass of phenol contains 3.01 × 10²³ molecules?
Answer: 15.6 g
Explanation: 1 mole = 6.02 × 10²³ molecules. 3.01 × 10²³ = 0.5 mol. Mass = 0.5 × 94 = 47.0 g. Option A uses 3.01 × 10²³ = 0.5 mol but wrong math.