Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

What is the mass in grams of 3.00 millimoles of CO₂? (C=12, O=16)
Options
A 0.132 g
Correct Answer
B 0.264 g
C 1.32 g
D 2.64 g
Correct Answer

Option A is the correct answer.

Detailed Explanation

Molar mass CO₂ = 44 g/mol. 1 millimole = 0.001 mol. Mass = 0.003 mol × 44 g/mol = 0.132 g.

Hint

1 millimole = 1/1000 mole.

Question Info