If equal volumes of ( AB ₂ ) and XY (both are salts) aqueous solutions are mixed, which of the following combination will give a precipitate of ( AY ₂ ) at 300 K ? (Given ( K _ sp ) (at 300 K) for ( AY ₂=5.2 10⁻⁷ ))

Question

Quantrex Academy · Accepted Answer

Correct answer: C. (2.0 10⁻² M ~ AB ₂, 2.0 10⁻² M ~ XY )

When equal volumes are mixed molarity reduce to half. For precipitation ( Q _ SP = [ A ⁺² ] [ Y ⁻ ]^2 K _ SP ) (1) ( Q _ SP = (1.8 10⁻³ ) ( 5 2 10⁻⁴ )^2 K _ sP ) (2) ( Q _ SP = (10⁻⁴ ) (0.4 10⁻³ )^2 K _ sp ) (3) ( Q _ SP = (10⁻² ) (10⁻² )^2 K _ sP ) (4) ( Q _ SP = ( 1.5 2 10⁻⁴ ) ( 1.5 2 10⁻³ )^2 K _ sP )

If equal volumes of ( AB ₂ ) and XY (both are salts) aqueous solutions are mixed, which of the following combination will give a precipitate of ( AY ₂ ) at 300 K ? (Given ( K _ sp ) (at 300 K) for ( AY ₂=5.2 10⁻⁷ ))

Options

Correct answer

Step-by-step solution

More from Ionic Equilibrium