What is the pH when the hydrogen ion concentration is 1 x 10-3 M? O a. 3.3 O b. 4 O c. 2.7 O d. 2 O e. 3

Question

What is the pH when the hydrogen ion concentration is 1 x 10-3 M?
O a. 3.3
O b. 4
O c. 2.7
O d. 2
O e. 3

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RI SƠ 3 years 2021-07-31T04:55:32+00:00 1 Answers 21 views 0

Answers ( )

  1. phucdien
    1
    2021-07-31T04:56:48+00:00
    Reply

    Answer:

    e. 3

    Explanation:

    In order to solve this problem we need to keep in mind the definition of pH:

    • pH = -log[H⁺]

    As stated by the problem, the hydrogen ion concentration, [H⁺], is 1×10⁻³ M.

    As all required information is available, we now can calculate the pH:

    • pH = -log(1×10⁻³ M)
    • pH = 3

    The correct option is thus e.

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