A hydrocarbon has a density of 0.7 g/mL and a molecular weight of 120 g/mol. What is its empirical formula?
Q1. A hydrocarbon has a density of 0.7 g/mL and a molecular weight of 120 g/mol. What is its empirical formula?
Answer: C6H6
Explanation: For empirical formula CxHy, density = (12x + 1y) / (12x + y). Given density of 0.7, 0.7 = (12x + 1y) / (12x + y). By trial and error, option B has the correct empirical formula.