AIPMT PRELIMS2001Chemistry-Chemical Equilibrium
AIPMT PRELIMS 2001 Chemistry Ionization Constants MCQ Question
Type: MCQ-numerical-Medium-Class 11
Ionisation constant of CH₃COOH is 1.7 × 10⁻⁵ and concentration of H⁺ ions is 3.4 × 10⁻³. Then find out initial concentration of CH₃COOH molecules :-
A
3.4 × 10⁴
B
3.4 × 10⁻³
C
6.8 × 10⁻⁴
D
6.8 × 10⁻³
Correct Answer
Option D
Detailed Explanation
Using the formula for ionization constant, Kₐ = [H⁺][A⁻]/[HA], we can solve for the initial concentration [HA] of CH₃COOH. Substituting the given values, we find the initial concentration to be 3.4 × 10⁴.
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