MDCAT Chemistry MCQ #449

A student reacts 44 grams of acetaldehyde with a saturated solution of sodium bisulfite. What mass of NaHSO3 is required for the completion?

MDCAT Chemistry MCQ #449

  1. Question 1

    Q1. A student reacts 44 grams of acetaldehyde with a saturated solution of sodium bisulfite. What mass of NaHSO3 is required for the completion?

    • A) 52g
    • B) 104g
    • C) 156g
    • D) 208g

    Answer: 104g

    Explanation: 44g of ethanal is one mole, requiring one mole of sodium bisulfite (104g). 52g is only a half-molar requirement.