Verified Answer :

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The Hydronium ion concentration increases to 100 times the original concentration (10^2)

Answer:

hydronium ion concentration will decrease by factor of 100

Explanation:

As we know that form to find pH of the solution is given as

\(pH = -Log[H^+]\)

so here we know that pH of the solution is decreased by 2

so we have

\(pH_1 - pH_2 = 2\)

now using above formula

\(2 = -Log[H_1^+] + Log[H_2^+]\)

so we will have

\(Log\frac{H_2^+}{H_1^+} = 2\)

\(\frac{H_2^+}{H_1^+} = 10^2\)

so hydronium ion concentration will decrease by factor of 100