MDCAT Chemistry MCQ #2805

A 0.250 L solution contains 5.0 g of NaCl. What is its molarity? (Molar mass of NaCl = 58.44 g/mol)

MDCAT Chemistry MCQ #2805

  1. Question 1

    Q1. A 0.250 L solution contains 5.0 g of NaCl. What is its molarity? (Molar mass of NaCl = 58.44 g/mol)

    • A) 0.31 M
    • B) 0.34 M
    • C) 0.17 M
    • D) 0.68 M

    Answer: 0.34 M

    Explanation: Molarity = (5.0/58.44)/0.250 = 0.34 M. A fails to account for significant figures.