Practice Calculating Ph (3.2) - Acids and Bases - IB 10 Sciences (Group 4)

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10 questions

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6 sample questions

Question 1.
What does a pH of 7 indicate?
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Consider what 'neutral' means in terms of acidity.
Question 2.
If a solution has a pH of 4, what can you say about its acidity?
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Remember the pH scale categories.
3Question 3.
What is the pH of pure water?
- 4
- 7
- 10
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Remember the neutral pH value!
4Question 4.
If a solution has a pH of 2, is it acidic or basic?
- True
- False
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Think about what lower pH values indicate.
Question 5.
If you have 0.0001 M of acetic acid (CH₃COOH), how would you calculate the pH, and what does this imply about the solution's acidity?
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Use the formula and remember that acetic acid is a weak acid.
Question 6.
A solution with a pH of 6.5 is mixed with one that has a pH of 8. Predict the pH of the resulting solution and justify your reasoning.
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Consider the effect of combining acidic and basic solutions on pH.

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