Solutions Question 157

Question: 25ml of a solution of barium hydroxide on titration with a 0.1molar solution of hydrochloric acid gave a litre value of 35 ml. The molarity of barium hydroxide solution was [AIEEE 2003]

Options:

A) 0.07

B) 0.14

C) 0.28

D) 0.35

Show Answer

Answer:

Correct Answer: A

Solution:

For HCl $ M=N=0.1 $

$ N_1V_1=N_2V_2 $ ; $ 25\times N_1=0.1\times 35 $

$ N_1=\frac{0.1\times 35}{25} $ ;
$ \therefore M=\frac{0.1\times 35}{25\times 2}=0.07 $ .



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