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Question 600033
JEE Chemistry · Medium

Mole Concept and Stoichiometry: Molarity Calculation MCQ

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Molarity CalculationMediumQuestion 600033

Question

How many grams of KOH (molar mass 56 g/mol) are needed to prepare 250 mL of 0.4 M solution?
  1. A
    2.8 g
  2. B
    5.6 g
    Correct
  3. C
    11.2 g
  4. D
    22.4 g

Correct answer

5.6 g

Explanation

n = 0.4 × 0.25 = 0.1 mol. Mass = 0.1 × 56 = 5.6 g.

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