JEE Main Chemistry question
0.2 molar solution of formic acid is 3.2% ionized. Its ionization constant is:
Answer: (B)
Solution
Ka=Cα²/(1−α)=0.2×(0.032)²/0.968≈2.1×10⁻⁴.
0.2 molar solution of formic acid is 3.2% ionized. Its ionization constant is:
Ka=Cα²/(1−α)=0.2×(0.032)²/0.968≈2.1×10⁻⁴.