Question Detail
Question
What is the mass of 1 mol of Fe₂CO₃? (Fe = 55.8, C = 12, O = 16)
Correct Answer
Option D is the correct answer.
Detailed Explanation
Molar mass = (2×55.8) + 12 + (3×16) = 111.6 + 12 + 48 = 171.6 g/mol.
Hint
Sum the atomic masses multiplied by subscripts.