Kw and pH of bases Quiz
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5 questions, one answer each
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1. What is the pH of 0.100 mol dm⁻³ KOH at 298 K?
- A. 13.00
- B. 1.00
- C. 14.00
- D. 12.00
2. What is the pH of 0.00500 mol dm⁻³ Ba(OH)₂ at 298 K?
- A. 11.70
- B. 12.00
- C. 12.30
- D. 2.00
3. Which statement about pure water at 323 K, where is greater than at 298 K, is correct?
- A. It is acidic because pH < 7
- B. It is alkaline because is higher
- C. It is neutral with pH below 7
- D. It is neutral with pH exactly 7
4. A strong base has pOH 2.30 at 298 K. What is its pH?
- A. 2.30
- B. 7.00
- C. 16.30
- D. 11.70
5. A strong base solution is diluted by a factor of 100. By how much does its pH change?
- A. Rises by 2
- B. Falls by 2
- C. Falls by 100
- D. Falls by 1