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3 years ago

A solution with [ OH] of 5 x 10-3 has a pH of

Chemistry

1 answer:

CaHeK987 [17]3 years ago

8 0

Answer:

11·699

Explanation:

Given the concentration of hydroxide ion in the solution is 5 × $10^{-3}$ M

Assuming the temperature at which it is asked to find the pH of the solution be 298 K

<h3>At 298 K the dissociation constant of water is $10^{-14}$ </h3><h3>∴ pH + pOH = 14 at 298 K</h3><h3>pOH of the solution = -log( concentration of hydroxide ion )</h3>

∴ pOH of the given solution = - log(5 × $10^{-3}$ = -0·699 + 3 = 2·301

pH of the given solution = 14 - 2·301 = 11·699

∴ pH of the solution = 11·699

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sergiy2304 [10]

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The mean is the average of some given data from a sample point.

To calculate the mean, we use the formula below:

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