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GarryVolchara [31]
3 years ago
12

A solution has [oh−] = 4.0×10−8. what is the value of [h+] for the solution? answers

Chemistry
2 answers:
grandymaker [24]3 years ago
8 0

<u>Answer:</u> The pH of the solution is 6.68

<u>Explanation:</u>

To calculate the pOH of the solution, we use the equation:

pOH=-\log[OH^-]

We are given:

[OH^-]=4.8\times ^{-8}M

Putting values in above equation, we get:

pOH=-\log (4.8\times 10^{-8})\\\\pOH=7.32

Calculating the pH of the solution:

pH+pOH=14\\\\pH=14-7.32=6.68

Hence, the pH of the solution is 6.68

Lelu [443]3 years ago
5 0
Answer is: the hydrogen ion concentration is 2.5·10⁻⁷ M.<span>
[OH</span>⁻] = 4·10⁻⁸<span> mol/L, equilibrium concentration of hydroxide anion.
[H</span>⁺] is the equilibrium concentration<span> of hydrogen ions.
[OH</span>⁻] · [H⁺] = 10⁻¹⁴ mol²/L², ionicproduct of water on room temperature.<span>
[H</span>⁺] = 10⁻¹⁴ mol²/L² ÷  4·10⁻⁸ mol/L.<span>
[H</span>⁺] = 2,5·10⁻⁷ mol/L = 0,00000025 mol/L.
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