Question Detail
Question
What is the mass of 2.0 moles of chlorine gas (Cl₂)? (Cl = 35.5 g/mol)
Correct Answer
Option C is the correct answer.
Detailed Explanation
Molar mass Cl₂ = 2 × 35.5 = 71.0 g/mol. Mass = 2.0 mol × 71.0 g/mol = 142.0 g.
Hint
Chlorine gas is diatomic (Cl₂).