Question

A sample of 100cm of dilute H2SO4 contains 0.1 moles of acid. What is hydrogen ion
concentration in the solution per dm3
(a) 2 moles
(b) 0.50 moles
(c) 0.25 moles
(d) 1 mole

Answer 1

Answer:

(c) 0.25 moles

Explanation:

Volume of acid = 100 ÷ 1000 = 0.1 dm3

Concentration of acid = 0.02 mol ÷ 0.1 dm3

= 0.25 mol/dm3

Answer 2

Answer:

a)

Explanation:

one mole of acid = 2mol of H+

0.1 mole of acid = 0.2 mol of H+

so now, 1dm³= 2mol