Question

20ml of 0.2M sulphuric acid is completely neutralized by 25ml of sodium hydroxide solution. H2SO4(aq) + 2NaOH → Na2SO4(aq) + 2H2O(l). Calculate the concentration of sodium hydroxide solution.​

Answer 1

Explanation:

Answer:

(i) x + 3 = 0

LHS = x + 3

Put x = 3, we get

LHS = 3 + 3 = 6 ≠ RHS

So, the equation is not satisfied.

(ii) x + 3 = 0

LHS = x + 3

Put x = 0, we get

LHS = 0 + 3 = 3 ≠ RHS

So, the equation is not satisfied.