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Usually, two kinds of sodium hydroxide solutions with PH value of 8, 10 are mixed in equal volume. What is the closest C(H+) of the mixed solution? How to calculate
Approaching 10. As far as alkalinity is concerned, pH 10 is greater than pH8. Therefore, the concentrations of hydroxyl ions are 10-4 and 10-6 respectively. The sum of the two is close to 10-4 (because the difference between them is 100 times). So pH≈ 10. (Because it is alkaline, you can't add H+ concentration, otherwise it will make a joke. )
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