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Concentration of a solution?

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calculate the molar H3O+ ion concentration of a solution that has a pH of 4.76

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  1. pH is defined as

    pH=-log [H3O+]

    where [H3O+] represents the molar concentration of H3O+. Then, in this case, we have

    4.76=-log[H3O+]

    To solve this, we apply 10^ to both sides of the equation:

    10^ -4.76=[H3O+]

    1,74E-5M=0,0000175M=[H3O+]

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