Pure sulphuric acid is a liquid of 1:84 density. What volume of it would be…

Pure sulphuric acid is a liquid of 1:84 density. What volume of it would be required to prepare 250 cm3 of 2.0 M solution?
(H = 1, S = 32, O = 16)
  • A.
    2.00
  • B.
    2.66
  • C.
    3.00
  • D.
    3.66
  • E.
    4.00
Correct Answer: Option B
Explanation

1000 cm3 of 1 m H2SO4 contains 98 gm of H2SO4
250 of 1 m H2SO4 (98)/(4) x (2)/(10) = 4.9 gm
But density = (mass)/(volume)
Volume = (Mass)/(Density) (4.90)/(1.84) = 2.66

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