Answer:
5
Explanation:
pH = -log[OH]
pH = -log[1.0 x 10–5]
pH = -log[10–5]
pH = -(-5)log10
pH = +5
the pH of the hydrochloric acid is 5.
pH is a numerical indicator of how acidic or basic aqueous or some other kind of liquid solutions are.
Calculation of pH
Given data:
Concentration of HCl = 1.0 × [tex]10^{-5}[/tex] mol/dm3.
pH can be calculated by the formula:
[tex]pH = -log[H^{+}][/tex]
Now, put the value of the concentration of hydrogen ion.
[tex]pH = -log[H^{+}]\\pH = -log[1.0 *10^{-5}]\\pH = 5[/tex]
Therefore, the pH of the hydrochloric acid is 5.
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