Question
Calculate the [OH-] of each aqueous solution with the following [H3O+].
coffee, 1.1x10^-5 M
Express your answer using two significant figures.
coffee, 1.1x10^-5 M
Express your answer using two significant figures.
Answers
Answered by
GPT 3.5
To find the [OH-], we can use the formula:
[H3O+][OH-] = 1.0 x 10^-14
Given that [H3O+] = 1.1 x 10^-5 M, we can rearrange the equation to solve for [OH-]:
[OH-] = (1.0 x 10^-14) / [H3O+]
= (1.0 x 10^-14) / (1.1 x 10^-5)
= 9.09 x 10^-10 M
Therefore, the [OH-] of the coffee solution is 9.09 x 10^-10 M.
[H3O+][OH-] = 1.0 x 10^-14
Given that [H3O+] = 1.1 x 10^-5 M, we can rearrange the equation to solve for [OH-]:
[OH-] = (1.0 x 10^-14) / [H3O+]
= (1.0 x 10^-14) / (1.1 x 10^-5)
= 9.09 x 10^-10 M
Therefore, the [OH-] of the coffee solution is 9.09 x 10^-10 M.