25 mL of a solution of barium hydroxide on titration with 0.1 molar solution of hydrochloric acid gave a litre value of 35 mL. The molarity of barium hydroxide solution was:

Question

25 mL of a solution of barium hydroxide on titration with 0.1 molar solution of hydrochloric acid gave a litre value of 35 mL. The molarity of barium hydroxide solution was: (A) 0.07 (B) 0.14 (C) 0.28 (D) 0.35

Tardigrade Admin · Accepted Answer

Let molarity of Ba ( OH )2=M1 ∴ Normality =2 M1 Molarity of HCl =0.1 M =0.1 N N1 V1 =N2 V2 2 M1 × 25 =0.1 × 35 M1 =0.07 M

Q. $25 m L$ of a solution of barium hydroxide on titration with $0.1$ molar solution of hydrochloric acid gave a litre value of $35 m L$ . The molarity of barium hydroxide solution was:

$0.07$

$0.14$

$0.28$

$0.35$

Let molarity of $B a (O H)_{2} = M_{1}$

$∴$ Normality $= 2 M_{1}$

Molarity of $H Cl = 0.1 M = 0.1 N$

$N_{1} V_{1} = N_{2} V_{2}$

$2 M_{1} \times 25 = 0.1 \times 35$

$M_{1} = 0.07 M$

Q. 25mL of a solution of barium hydroxide on titration with 0.1 molar solution of hydrochloric acid gave a litre value of 35mL. The molarity of barium hydroxide solution was:

0.07

0.14

0.28

0.35