# chemistry

Calculate the H3O+ concentration present in water under the following conditions. Enter your answer in scientific notation.

a. [OH-] = 2.8 x 10-7 M

b. [OH-] = 8.8 x 10-3 M

c. [OH-] = 2.4 x 10-11 M

everytime I do the problem In the calculator I get system error someone please help I think my calculator is broken

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1. Johnny said he didn't have a calculator and wants someone to do his work. I did one problem. Then Danny says his calculator returns the wrong answer so it may be broke(n). Then I find Danny and Johnny are the same computer. :-(.
Do we have an answer moocher?

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