MHT CET2009ChemistryIonic Equilibrium
If 20 ~mL of an acidic solution of pH 3 is diluted to 100 ~mL , the H ⁺ ion concentration will be
Options
- A1 10⁻³ M
- B2 10⁻³ M
- C2 10⁻⁴ M
- D0.02 10⁻⁴ M
Correct answer
C. 2 10⁻⁴ M
Step-by-step solution
pH =3 (given) aligned [ H ⁺ ]=1 10⁻³ M &=1 10⁻³ ~N N₁ V₁ &=N₂ V₂ 1 10⁻³ 20 &=N₂ 100 N₂ &=2 10⁻⁴ [ H ⁺ ] &=2 10⁻⁴ M aligned