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

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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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