Determine the pH of the following: a single solution prepared to final concentrations of 0.01469 M HCl and 0.01469 M NaOH. a single solution prepared to final concentrations of 0.01469 M H2SO4 (assume complete dissociation) and 0.01469 M HCl.

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 38P
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Determine the pH of the following:

a single solution prepared to final concentrations of 0.01469 M HCl and 0.01469 M NaOH.

a single solution prepared to final concentrations of 0.01469 M H2SO4 (assume complete dissociation) and 0.01469 M HCl.

Expert Solution
Step 1

pH is the negative logarithm of hydrogen ion concentration. When an acid is mixed with a base, both of these reacts together and form salt and water. 

According to normality equation,

NV= N1V1-N2V2

Here N represents the concentration of hydrogen ion after mixing the acid and base. N1, N2 represents the concentration of acid and base respectively. V1 and V2 show the volume of acid and base respectrively.

Here the concentrations of HCl and NaOH are 0.01469M.Both have equal concentrations, so its hydrogen ion after mixing cannot be predicted.

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