How many moles of H2SO4 are there in 50 cm³ of 0.108 mol dm³ solution of the acid?

A. 5.4x 10
B. 5.4 x 10⁻³
B. 5.4x 10⁻¹
C. 5.4 x 10⁻²

Correct Answer:

Option B = 5.4 x 10⁻³

Explanation

No. of moles = ^{(molar conc X volume)}/₁₀₀₀

No. of moles = ^{0.108 X 50} /₁₀₀₀

: No. of moles = 0.0054 moles