pH and pOH & Neutralization Practice

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What is pH?

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pH is a measure of the acidity or basicity of a solution, defined as the negative logarithm of the hydrogen ion concentration. A pH less than 7 indicates an acid, a pH of 7 indicates neutrality, and a pH greater than 7 indicates a base.

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What is pOH?

Back

pOH is a measure of the hydroxide ion concentration in a solution, defined as the negative logarithm of the hydroxide ion concentration. It is related to pH by the equation: pH + pOH = 14.

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How do you calculate pOH from hydrogen ion concentration?

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To calculate pOH from hydrogen ion concentration, first find the pH using the formula: pH = -log[H+]. Then use the relationship: pOH = 14 - pH.

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What is the relationship between pH and pOH?

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The relationship is given by the equation: pH + pOH = 14. This means that if you know one, you can easily find the other.

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What does an Arrhenius acid do in water?

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An Arrhenius acid increases the concentration of hydrogen ions (H+) in aqueous solution.

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What does an Arrhenius base do in water?

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An Arrhenius base increases the concentration of hydroxide ions (OH-) in aqueous solution.

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What is a strong acid?

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A strong acid is an acid that completely dissociates in solution, releasing all of its hydrogen ions. Examples include hydrochloric acid (HCl) and sulfuric acid (H2SO4).

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What is a weak acid?

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A weak acid is an acid that partially dissociates in solution, releasing some but not all of its hydrogen ions. Examples include acetic acid (CH3COOH) and citric acid.

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What happens when a weak acid reacts with a strong base?

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When a weak acid reacts with a strong base, the resulting solution typically has a pH greater than 7, indicating it is basic.

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What is neutralization?

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Neutralization is a chemical reaction between an acid and a base that produces water and a salt, effectively canceling out the properties of both.