A solution has a pH of 2. What is its hydrogen ion concentration [H+]?
- A. 1 × 10^-3 M
- B. 1 × 10^-2 M ✓
- C. 1 × 10^-1 M
- D. 1 × 10^2 M
Correct answer
B. 1 × 10^-2 M
Explanation
pH = -log[H+], so [H+] = 10^-pH = 10^-2 = 1 × 10^-2 M.
Related MCQs
- Which law states that at constant temperature; the pressure and volume of a gas are inversely proportional?
- In classical conditioning; what term describes a stimulus that triggers a response without prior learning?
- According to the central dogma of molecular biology; what is the correct order of information flow?
- Which law relates the pressure; volume; temperature; and moles of an ideal gas in a single equation?
- Which term describes an action potential's inability to be triggered again immediately after firing; regardles...
- A solution has a pH of 4. What is its hydrogen ion concentration [H+]?