Chapter 22, Problem 22.36P

Interpretation Introduction

Interpretation:

On mixing $\text{50}\text{.0 mL}\text{of}\text{0}{\text{.50 M AgNO}}_3$ with $\text{50}\text{.0 mL}\text{of}\text{1}\text{.0}\times {\text{10}}^{-4}\text{M NaBr}$, whether precipitation of $\text{AgBr}\left(\text{s}\right)$ occur or not has to be identified. Also the concentration of $\left[{\text{Ag}}^{\text{+}}\right]\text{,}\left[{\text{Br}}^{-}\right],\left[{\text{Na}}^{\text{+}}\right]\text{and }\left[{\text{NO}}_3{}^{-}\right]$ should be determined.

Concept Introduction:

• Reaction quotient (Q) is the ratio of product of concentration of products to that of product of concentration of reactants, raised to the power of coefficients.
• ${\text{Q}}_{\text{sp}}{\text{ > K}}_{\text{sp}}$ , precipitation will happen.
• ${\text{Q is less than K}}_{\text{sp}}$, more solute can dissolve in solution.
• ${\text{Q is equal to K}}_{\text{sp}}$, no more solute can dissolve or precipitate in solution.