MDCAT Chemistry MCQ #480

How many moles of NaHSO3 react with 5.8 g of acetone? (Molar mass of acetone = 58 g/mol)

MDCAT Chemistry MCQ #480

  1. Question 1

    Q1. How many moles of NaHSO3 react with 5.8 g of acetone? (Molar mass of acetone = 58 g/mol)

    • A) 0.10 mol
    • B) 0.20 mol
    • C) 0.30 mol
    • D) 0.05 mol

    Answer: 0.10 mol

    Explanation: 1 mole of ketone reacts with 1 mole of NaHSO3. 5.8 g / 58 g/mol = 0.10 mol (B assumes 2:1 ratio, which is incorrect).