FLASHCARD 2 ACID & BASE
Flashcard
•
Chemistry
•
University
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Arrhenius definition of a base?
Back
A base is a substance that produces hydroxide ions (OH⁻) in aqueous solution.
2.
FLASHCARD QUESTION
Front
How do you calculate the pH of a solution of ammonia (NH₃) with a Kb of 1.8 × 10−5?
Back
The pH of a 0.02 M solution of ammonia (NH₃) is 11.26.
3.
FLASHCARD QUESTION
Front
Identify a pair that is not a Brønsted-Lowry acid-base pair.
Back
BF₃ / NH₃ is not a Brønsted-Lowry acid-base pair.
4.
FLASHCARD QUESTION
Front
Which solution has the highest pH: 0.1 M HCl, 0.1 M NaOH, 0.1 M CH₃COOH, or 0.1 M NH₃?
Back
0.1 M NaOH has the highest pH.
5.
FLASHCARD QUESTION
Front
In the reaction HCO₃⁻ + H₂O ⇌ H₃O⁺ + CO₃²⁻, which species acts as the Brønsted-Lowry base?
Back
H₂O acts as the Brønsted-Lowry base.
6.
FLASHCARD QUESTION
Front
Define a Brønsted-Lowry acid.
Back
A Brønsted-Lowry acid is a substance that donates protons (H⁺) in a reaction.
7.
FLASHCARD QUESTION
Front
What is the pH scale range?
Back
The pH scale ranges from 0 to 14, with 7 being neutral.
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