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If the pH = 6.5, what is the [H+]? *
3.16 x 10-7
3.16 x 10-6
O
3.16 x 10-5

If the pH = 6.5, what is the [H+]? * 3.16 x 10-7 3.16 x 10-6 O 3.16 x 10-5-example-1

2 Answers

2 votes

Answer:

Key Concepts

The hydrogen ion concentration in a solution, [H+], in mol L-1, can be calculated if the pH of the solution is known.

pH is defined as the negative logarithm (to base 10) of the hydrogen ion concentration in mol L-1 pH = -log10[H+] ...

[H+] in mol L-1 can be calculated using the equation (formula): [H+] = 10-pH

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Step-by-step explanation:

User Falla Coulibaly
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5.2k points
2 votes

Answer:


pH = - log[H {}^( + ) ] \\ 6.5 = - log[H {}^( + ) ] \\ [H {}^( + ) ] = {10}^( - 6.5) \\ [H {}^( + ) ] = 3.16 * {10}^( - 7) \: mol {dm}^( - 3)

User Mira Mira
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5.9k points