Question

50 ml of 0.1 M HCl solution was mixed with 100 ml of 0.2 M NaOH solution. From the resultant
solution, a 100 ml sample was taken out and completely neutralized with 50 ml of H2SO4.To this
solution; 50 ml of 0.05 M BaCl2 solution is added to form insoluble precipitate of BaSO4. Determine
the molarity of sulphate ions left in the final solution.
(A) 0.0125 M (B) 0.025 M
(C) 1.25 M
(D) 2.5 M

Answer 1

Answer:

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