Most Important Selected Qs for JEE AdvancedChemistryIonic Equilibrium
A sparingly soluble salt MX is dissolved in water to prepare 1 lit. saturated solution. Now 10⁻⁶ ~mol NaX is added into this. Conductivity of this solution is 29 10⁻⁶ ~S / m . If K _ sP of MX is a 10^ - b then find value of ( a + b ) ? Given _ x ⁻ ^0=4 10⁻³ ~S ~m ^2 ~mol ⁻ _ Na ⁺ ^0=5 10⁻³ ~S ~m ^2 ~mol ⁻ _ M ⁺ ^0=6 10⁻³ ~S ~m ^2 ~mol ⁻
Correct answer
18
Step-by-step solution
MX M ⁺+ X ⁻x x+10⁻⁶ [ Na ⁺ ]=10⁻⁶ M K _ sol = K _ M ⁺ + K _ X ⁻ + K _ Na ⁺ aligned & 29 10⁻⁶=10^3 [6 10⁻³ x+ (4 10⁻³ (x+10⁻⁶ )+ (5 10⁻³ 10⁻⁶ ) ] . & x=2 10⁻⁶ & ~K _ SP =6 10⁻¹² aligned