How many grams of H2SO4 are necessary for the preparation of 0.175 dm3 of M…

Chemistry JAMB 1992

How many grams of H2SO4 are necessary for the preparation of 0.175 dm3 of M 6.00 M H2SO4?

(S = 32.06, O = 16.00 H = 1.00)

  • 206.0 g
  • 103.0 g checkmark
  • 98.1 g
  • 51.5 g

The correct answer is: B

Explanation

1 mole of H2SO4 ≈ 98 gms
0.175 dm3 of 6.0 m H2SO4
1000 cm3 ≈ dm3
(0.175) / (1000) of 6.0 m H2SO4
0.000175 x 6 x 98 ≈ 0.1029 gms
1 dm3 - 1000 cm3
∴ 0.1029 x 1000 = 103 gms
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