InterviewSolution
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InterviewSolution
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An aqueous solution of HCl has a pH of 2.0 When water is added to increase the pH to 5.0 the hydrogen ion concentration -A. remains the sameB. decrease three-foldC. increases three-foldD. decreases thousand-fold |
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Answer» Correct Answer - D `pH=2 rArr [H^(+)]=10^(-2)` `pH=5 rArr [H^(+)]=10^(-5)` `:. ([H^(+)]"new")/([H^(+)]"old")=(10^(-5))/(10^(-2))=10^(-3)` |
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