KVPY2017ChemistryIonic Equilibrium
An excess of Ag ₂ CrO ₄( ~s ) is added to a 5 10⁻³ M K ₂ CrO ₄ solution. The concentration of Ag ⁺ in the solution is closest to [ . Solubility product for . Ag ₂ CrO ₄=1.1 10⁻¹² ]
Options
- A2.2 10⁻¹⁰ M
- B1.5 10⁻⁵ M
- C1.0 10⁻⁶ M
- D5.0 10⁻³ M
Correct answer
B. 1.5 10⁻⁵ M
Step-by-step solution
1.1 10⁻¹²= [ Ag ⁺ ]² [5 10⁻¹³ ] [ Ag ⁺ ]=1.5 10⁻⁵