Acid Base II

Acid Base II

Assessment

Flashcard

Chemistry

University

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What salt is formed when nitrous acid is neutralized by potassium hydroxide?

Back

KNO₂

2.

FLASHCARD QUESTION

Front

What is the pH at the equivalence point of a titration involving a weak acid and a strong base?

Back

The pH at the equivalence point can be greater than 7, depending on the strength of the acid and base involved.

3.

FLASHCARD QUESTION

Front

What is the significance of the Ka value in acid-base reactions?

Back

The Ka value indicates the strength of an acid; a higher Ka value means a stronger acid.

4.

FLASHCARD QUESTION

Front

What is the pH of a 0.100 M acetic acid solution before titration? (Ka of acetic acid = 1.8E-5)

Back

The pH is 2.87.

5.

FLASHCARD QUESTION

Front

What is the net ionic equation for the neutralization of HNO₂ with potassium hydroxide?

Back

HNO₂ (aq) + OH⁻ (aq) → H₂O (l) + NO₂⁻ (aq)

6.

FLASHCARD QUESTION

Front

What is the relationship between pH and pOH in a solution?

Back

pH + pOH = 14 at 25°C.

7.

FLASHCARD QUESTION

Front

How do you calculate the pH of a weak acid solution?

Back

Use the formula: pH = -log[H⁺], where [H⁺] can be found using the acid dissociation constant (Ka).

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