MDCAT Chemistry MCQ #486

What is the molarity of a solution containing 2.2 g of acetone in 500 mL of solvent? (Molar mass = 58 g/mol)

MDCAT Chemistry MCQ #486

  1. Question 1

    Q1. What is the molarity of a solution containing 2.2 g of acetone in 500 mL of solvent? (Molar mass = 58 g/mol)

    • A) 0.076 M
    • B) 0.15 M
    • C) 0.30 M
    • D) 0.038 M

    Answer: 0.076 M

    Explanation: 2.2 g / 58 g/mol = 0.038 mol. 0.038 mol / 0.5 L = 0.076 M (B doubles for wrong volume).