Recent content by night nurse 991

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    Giant list of science fair project ideas

    My little brother was assigned the topic "weather" for his science fair project. Anyone have any good ideas for weather projects?
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    PH question, I really don't get this

    Oh okay I got the answer thank you so much!
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    PH question, I really don't get this

    But I don't get how to plug it in on my calculator
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    PH question, I really don't get this

    I know I have to use the first one but I don't know how to do the reverse of it
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    PH question, I really don't get this

    Homework Statement What is the [H3O+] of acid rain with a pH of 4.23? Homework Equations pH = -log[H30+] pOH = -log[OH-] pH + pOH = 14 The Attempt at a Solution the four possible choices are a. 1.7 x 10^-10 b. 5.8 x 10^-5 c. 2.3 x 10^-4 d. 1.7 x 10^5
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