Answer:
2.13
Explanation:
I got the exact same question and I got it correct!
The ph of a 7.5*10^-3 m H+ solution is 2.13.
ph = -㏒10 [H3O+]
= -㏒10 (7.5 × 10−3)
= - (-2.13) = 2.13
pH is defined by the following equation, pH = −log [H+], where [H+] denotes the molar hydrogen ion concentration. Notice that we are required to take the common (base 10) logarithm of the hydrogen ion concentration in order to calculate pH.
− pH = log [H+] , [H+] = 10−pH, by exponentiating both sides with base 10 to "undo" the common logarithm. The hydrogen ion concentration of "Solution A" is, [H+] = 10−5.6 ≈ 0.0000025 = 2.51 × 10−6 M.
Learn more about hydrogen ions here https://brainly.com/question/22624846
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