

PFlashcard: Calculating pH
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What happens to [H₃O⁺] and [OH⁻] as a solution becomes more basic?
Back
[H₃O⁺] decreases while [OH⁻] increases.
2.
FLASHCARD QUESTION
Front
What is the pH of a solution with a hydronium ion concentration of 3.4 x 10⁻² M?
Back
1.5
3.
FLASHCARD QUESTION
Front
Define pH.
Back
pH is a measure of the acidity or basicity of a solution, calculated as the negative logarithm of the hydronium ion concentration: pH = -log[H₃O⁺].
4.
FLASHCARD QUESTION
Front
What is the pH of a neutral solution at 25°C?
Back
7.0.
5.
FLASHCARD QUESTION
Front
What does a pH less than 7 indicate?
Back
A solution is acidic.
6.
FLASHCARD QUESTION
Front
What does a pH greater than 7 indicate?
Back
A solution is basic.
7.
FLASHCARD QUESTION
Front
What is the relationship between pH and [H₃O⁺]?
Back
As pH decreases, [H₃O⁺] increases.
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