The solubility of Ag 2 CrO 4 at 298K is 6·6 × 10 –5 moles/litre. Find its solubility product. - Wired Faculty

Equilibrium

Question

The solubility of Ag₂CrO₄ at 298K is 6·6 × 10^–5 moles/litre. Find its solubility product.

Solution

We know,

Ag subscript 2 CrO subscript 4 space space space rightwards harpoon over leftwards harpoon space space space space 2 Ag to the power of plus space plus space CrO subscript 4 superscript 2 minus end superscript

Now 1 mole of

on dissociation gives 2 moles of Ag⁺ ions and 1 mole of

CrO subscript 4 superscript 2 minus end superscript

ions.

2 space moles space of space Ag to the power of plus space ions space and space 1 space mole space of space CrO subscript 4 superscript 2 minus end superscript space ions. Hence comma space open square brackets Ag to the power of plus close square brackets space equals space 2 space cross times space 6.6 space cross times space 10 to the power of negative 5 end exponent mol space straight L to the power of negative 1 end exponent open square brackets CrO subscript 4 superscript 2 minus end superscript close square brackets space equals space 6.6 space cross times 10 to the power of negative 5 end exponent space mol space straight L to the power of negative 1 end exponent Applying space the space law space of space solubility space product comma space straight K subscript sp space equals space open square brackets Ag to the power of plus close square brackets squared space open square brackets CrO subscript 4 superscript 2 minus end superscript close square brackets space space space space space space equals space left parenthesis 2 space cross times space 6.6 space cross times space 10 to the power of negative 5 end exponent right parenthesis squared space left parenthesis 6.6 space cross times space 10 to the power of negative 5 end exponent right parenthesis space space space space space space equals 1.149 space cross times space 10 to the power of negative 12 end exponent space space

Some More Questions From Equilibrium Chapter

For Daily Free Study Material Join wiredfaculty