CheemnCatelvew

2021-05-12

Does any solid $A{g}_{2}Cr{O}_{4}$ form when $2.7×{10}^{-5}$ g of $AgN{O}_{3}$ is dissolved in 15.0 ml of ?

Talisha

Balanced reaction-:
$2AgN{O}_{3}\left(aq\right)+{K}_{2}Cr{O}_{4}\left(aq\right)\to A{g}_{2}Cr{O}_{4}\left(s\right)+2KN{O}_{3}\left(aq\right)$
Moles of
$=1.589\cdot {10}^{-7}$ mol
Molarity of
Ksp of $A{g}_{2}Cr{O}_{4}$
$={\left[A{g}^{+}\right]}^{2}\left[Cr{O}_{4}^{2-}\right]$
$1.2\cdot {10}^{-12}={\left[2s\right]}^{2}\left[s\right]$
$4{s}^{3}=1.2\cdot {10}^{-12}$
$s=6.69\cdot {10}^{-5}$ M
Molarity of $A{g}^{+}$ is less than the molar solubility thus ppt will not occur

Do you have a similar question?