MDCAT Chemistry MCQ #2815

A 50.0 mL solution is diluted to 200.0 mL. If final concentration is 0.150 M, what was the initial concentration?

MDCAT Chemistry MCQ #2815

  1. Question 1

    Q1. A 50.0 mL solution is diluted to 200.0 mL. If final concentration is 0.150 M, what was the initial concentration?

    • A) 0.600 M
    • B) 0.300 M
    • C) 1.20 M
    • D) 0.450 M

    Answer: 0.600 M

    Explanation: C₁ = (0.150×200)/50 = 0.600 M. B assumes 1:1 volume ratio.