Chemistry JAMB

Three drops of a 1.0 mol/dm³ solution of HCl was added to 20cm³ of a solution of pH 6.4. The pH of the resulting solution will be?
Three drops of a 1.0 mol/dm³ solution of HCl was added to 20cm³ of a solution of pH 6.4. The pH of the resulting solution will be?Three drops of a 1.0 mol/dm³ solution of HCl was added to 20cm³ of a solution of pH 6.4. The pH of the resulting solution will be?

A. close to that of pure water
B. less than 6.4
C. greater than 6.4
D. unaltered

Correct Answer:

Option B – less than 6.4

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