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Question
1 cc of 0.1 M HCl is added to 1 litre of 0.1 M NaCl solution. The pH of the resulting solution will be:
1 cc of 0.1 M HCl is added to 1 litre of 0.1 M NaCl solution. The pH of the resulting solution will be:
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Solution
The correct option is C 4
NaCl is a salt of strong acid HCl and strong base NaOH.
Its solution is neutral.
Hence, the change in the pH of the HCl solution will only be due to the dilution.
N1V1=N2V2
The expression for hydrogen ion concentration is [H+]=0.1×11000=1×10−4M
The pH of the solution is pH=−log[H+]=−log(1×10−4)=4.
NaCl is a salt of strong acid HCl and strong base NaOH.
Its solution is neutral.
Hence, the change in the pH of the HCl solution will only be due to the dilution.
N1V1=N2V2
The expression for hydrogen ion concentration is [H+]=0.1×11000=1×10−4M
The pH of the solution is pH=−log[H+]=−log(1×10−4)=4.
The expression for hydrogen ion concentration is [H+]=0.1×11000=1×10−4M
The pH of the solution is pH=−log[H+]=−log(1×10−4)=4.
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