A student measured the pH of his soda and found it to be 4.5. Calculate the [H3O+] in the soda.

Question

A student measured the pH of his soda and found it to be 4.5.

Calculate the [H3O+] in the soda.

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Thông Đạt 5 years 2021-08-15T17:40:03+00:00 1 Answers 19 views 0

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  1. thienhuong
    0
    2021-08-15T17:41:53+00:00
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    Answer:

    0.0111 M

    Explanation:

    pH = 4.5

    [H3O+] = ?

    Relationship between both quantitiesis given by:

    pH = -log₁₀ [H3O+]

    -pH = log₁₀ [H3O+]

    -4.5 =  log₁₀ [H3O+]

    [H3O+]  = e ^ (-4.5)

    [H3O+] = 0.0111 M

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