How many moles of (H+) are there in 1 dm3 of 0.5 M solution of H2SO4?

  • A 2.0 moles
  • B 1.0 moles
  • C 0.5 mole
  • D 0.25 mole
jamb 1992chemistry

The correct answer is B. 1.0 moles

mole = (M x V ) / (1000cm3) = (0.5 x 1000cm3) = 0.5 moles

For H2SO4 → 2H+SO42-

1 mole of H+ = 0.5 moles

2H+ = 2 x 0.5 mole = 1.0 mole

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