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JAMB Chemistry 1992 Question 21

Question 21

Mole Concept and Stoichiometry

How many grams of H2SO4 are necessary for the preparation of 0.175 dm3 of 6.00 M H2SO4? [S = 32.06, O = 16.00, H = 1.00].

  1. A.206.0 g
  2. B.103.0 g
  3. C.98.1 g
  4. D.51.5 g
Show the answer and explanation

Answer: B (103.0 g)

Explanation

Moles = 6.00 × 0.175 = 1.05 mol. Mass = 1.05 × 98.06 ≈ 103.0 g.