pH Scale Worksheet
A Grade 11 science worksheet covering the pH scale, acids, bases, and neutralization reactions.
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pH Scale Worksheet
Name:
Date:
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Read each question carefully and answer to the best of your ability. Refer to the pH scale diagram as needed.
1. Which of the following pH values indicates a strong acid?
pH 7
pH 13
pH 2
pH 9
2. A substance with a pH of 8 is considered:
Strongly acidic
Weakly acidic
Neutral
Weakly basic
3. The pH scale ranges from 0 to , with 7 being .
4. Acids have a high concentration of ions, while bases have a high concentration of ions.
5. A reaction between an acid and a base is called a reaction, which typically produces a salt and .
6. A solution with a pH of 1 is less acidic than a solution with a pH of 6.
True
False
7. Pure water has a neutral pH because the concentrations of H+ and OH- ions are equal.
True
False
8. Describe the relationship between pH and the concentration of hydrogen ions (H+) in a solution.
9. Explain why strong acids and strong bases are dangerous and require careful handling in a laboratory setting.
Match each substance with its approximate pH range.
10. Lemon Juice
a. pH 13-14
11. Tap Water
b. pH 2-3
12. Bleach
c. pH 6-8
13. Stomach Acid
d. pH 1-2
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