Textbook Page 197 - (1-5)
1. Is a solution with a pH of 11 acidic or basic?
- Basic.
2. Is a solution with a pH of 5 acidic or basic?
- Acidic.
3. What is the pH of pure water?
- Neutral (7)
4. Could you determine a specific pH value for a solution using blue litmus paper?
- No. It is impossible to determine specific pH levels by just using blue litmus paper.
5. What is the advantage of using a universal indicator?
- It uses a wide range of pH values that are of different colours and thus, is more accurate than litmus paper.
Textbook Page 201 - (1-2)
1. Name the following bases.
(a) KOH(s) -- Potassium Hydroxide
(b) Ca(OH)2(s) -- Calcium Hydroxide
(c) Mg(OH)2(s) -- Magnesium Hydroxide
(d) NH4OH(aq) -- Ammonium Hydroxide
2. Which polyatomic group is found at the end of the chemical formula for most bases?
- "OH".
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