Equilibrium Question 482

Question: Assuming complete ionisation, the $ pH $ of $ 0.1,MHCl $ is 1. The molarity of $ H_2SO_4 $ with the same $ pH $ is [KCET 1998]

Options:

A) 0.2

B) 0.1

C) 2.0

D) 0.05

Show Answer

Answer:

Correct Answer: D

Solution:

$ pH=1 $ means $ [{H^{+}}]={10^{-1}} $ M Hence $ [H_2SO_4]=\frac{{10^{-1}}}{2}=\frac{1}{20}=0.05 $ M



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