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How is pH calculated?Question 2Select one:a.log[H33O++]b.−log−log[OH−−]c.−log−log[H33O++]d.log[OH−−]

Question

How is pH calculated?

Question 2

Select one:

  • a. log[H3O^+]
  • b. −log−log[OH−]
  • c. −log−log[H3O^+]
  • d. log[OH−]
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Solution

To calculate pH, we can break down the problem into the following steps:

1. ### Break Down the Problem

We need to determine which option correctly represents the formula for calculating pH. The pH is a measure of the hydrogen ion concentration in a solution.

2. ### Relevant Concepts

The pH is calculated using the formula: pH=log[H3O+] \text{pH} = -\log[H_3O^+] where [H3O+][H_3O^+] is the concentration of hydronium ions in moles per liter.

3. ### Analysis and Detail

  1. Option (a) states: log[H3O+]\log[H_3O^+], which is incorrect because the pH formula requires the negative logarithm.
  2. Option (b) states: loglog[OH]-\log-\log[OH^-], which does not make sense in the context of calculating pH.
  3. Option (c) states: log[H3O+]-\log[H_3O^+], which is correct as it directly uses the pH formula.
  4. Option (d) states: log[OH]\log[OH^-], which is incorrect because it relates to the pOH, not the pH.

4. ### Verify and Summarize

From the analysis, option (c) correctly represents the pH calculation, as it directly applies the formula needed to find pH.

Final Answer

The correct option is c. log[H3O+]-\log[H_3O^+].

This problem has been solved

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