yh148321 yh148321

23-04-2021
Chemistry

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What is the poH of a solution that has an [H+] = 7.7 x 10-7 M? *
O 7.9
6.5
O 2.3

What is the poH of a solution that has an H 77 x 107 M O 79 65 O 23 class=

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23-04-2021

Answer:

7.9

Explanation:

pH=-log([H+])

pH=-log(7.7×10⁻⁷M)

pH=6.113509275

Now, poH + pH = 14

Making poH the subject,

poH=14-pH

poH=14-6.113509275

poH=7.886490725

≈7.9

∴poH≈7.9

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