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What is the pH of a solution that contains hydroxide ions at a concentration of 6.3 x 10-4 M ?Question 13Select one:a.3.23.2b.6.36.3c.1.61.6d.10.8

Question

What is the pH of a solution that contains hydroxide ions at a concentration of 6.3 x 10-4 M ?

Question 13

Select one:

  • a. 3.2
  • b. 6.3
  • c. 1.6
  • d. 10.8
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Solution

To find the pH of a solution, we first need to find the pOH, since we are given the concentration of hydroxide ions (OH-). The pOH is found using the formula:

pOH = -log[OH-]

Substituting the given concentration into the formula:

pOH = -log(6.3 x 10^-4)

This gives a pOH of approximately 3.2.

The pH and pOH of a solution are related by the equation:

pH + pOH = 14

So, to find the pH, we subtract the pOH from 14:

pH = 14 - pOH pH = 14 - 3.2 pH = 10.8

So, the pH of the solution is approximately 10.8. Therefore, the correct answer is d. 10.8.

This problem has been solved

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