Question

(b) A solution has been prepared by dissolving 4.9 g of H2SO4 in 250 ml
of solution. Calculate the pH of the solution assuming complete
dissociation of H2SO4.​

Answer 1

Answer:

Explanation:

Molar mass of sulphuric acid is 98.07g/mol

Therfore 4.9g contains 0.04996 moles.

0.04996 mol/500ml =( 0.04996 x2) moles per litre = 0.09992 moles per litre

Therefore 4.9g H2SO4 in 500 ml = approx. 0.10M