Ionic Equilibrium
The pH of a 0.01 M solution of HCl is:
Select the correct option:
Solution
2
Hydrogen chloride (HCl) is a strong acid that undergoes complete ionization in aqueous solution. HCl(aq)→H+(aq)+Cl−(aq)
- Concentration of acid [HCl]=0.01 M=10−2 M.
- Since it is monoprotic and strong, [H+]=[HCl]=10−2 M.
- Definition: pH=−log[H+] pH=−log(10−2)=2.
- The solution is acidic.
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About This Question
- Subject
- chemistry
- Chapter
- equilibrium
- Topic
- ionic equilibrium
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
2
Hydrogen chloride (HCl) is a strong acid that undergoes complete ionization in aqueous solution. HCl(aq)→H+(aq)+Cl−(aq)
- Concentration of acid [HCl]=0.01 M=10−2 M.
- Since it is monoprotic and strong, [H+]=[HCl]=10−2 M.
- Definition: pH=−log[H+] pH=−log(10−2)=2.
- The solution is acidic.
This easy difficulty chemistry question is from the chapter equilibrium, covering the topic of ionic equilibrium. It appeared in the 2025 exam.
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