What is the concentration of hydroxide ions for the solution with the highest pH studied?

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Multiple Choice

What is the concentration of hydroxide ions for the solution with the highest pH studied?

Explanation:
To determine the concentration of hydroxide ions in a solution based on pH, it is important to understand the relationship between pH and pOH, as well as the dissociation of water. pH is a measure of the hydrogen ion concentration, while pOH measures hydroxide ion concentration. At 25 °C, pH and pOH are related by the equation: pH + pOH = 14 As the pH of a solution increases, indicating it is more basic, the pOH decreases, and conversely. For the solution with the highest pH, the concentration of hydroxide ions will also be the highest. A basic solution will have a high concentration of hydroxide ions. In this context, if we consider a pH of, for example, 12. Therefore, we can calculate the pOH: pOH = 14 - pH = 14 - 12 = 2. From the pOH, we can find the concentration of hydroxide ions using the formula: \[ \text{[OH}^−] = 10^{-\text{pOH}} \] This means: \[ \text{[OH}^−] = 10^{-2} \

To determine the concentration of hydroxide ions in a solution based on pH, it is important to understand the relationship between pH and pOH, as well as the dissociation of water.

pH is a measure of the hydrogen ion concentration, while pOH measures hydroxide ion concentration. At 25 °C, pH and pOH are related by the equation:

pH + pOH = 14

As the pH of a solution increases, indicating it is more basic, the pOH decreases, and conversely. For the solution with the highest pH, the concentration of hydroxide ions will also be the highest.

A basic solution will have a high concentration of hydroxide ions. In this context, if we consider a pH of, for example, 12. Therefore, we can calculate the pOH:

pOH = 14 - pH = 14 - 12 = 2.

From the pOH, we can find the concentration of hydroxide ions using the formula:

[ \text{[OH}^−] = 10^{-\text{pOH}} ]

This means:

[ \text{[OH}^−] = 10^{-2} \

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