What are the H3O+ concentrations of solutions with the following pH values? (a)

Question

What are the H3O+ concentrations of solutions with the following pH values?
(a) pH 5.0
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(b) pH 13.0
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(c) pH 0.0
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(d) pH 1.48
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(e) pH 7.96
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Explanation / Answer

[H3O+] = 10^(-pH)

1) [H3O+] = 10-5 M

2) [H3O+] = 10-13 M

3) [H3O+] = 10-0 = 1

4) ) [H3O+] = 10-1.48 = 3.31*10-2 M

5) [H3O+] = 10-7.96 = 1.1*10-8 M

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