Chapter 15, Problem 117QRT

(a)

Interpretation Introduction

Interpretation:

The concentration of ${\text{Ba}}^{2+}$ when ${\text{BaSO}}_{\text{4}}$ would start precipitating in the solution of $\text{0}\text{.010}\text{M}{\text{F}}^{-}$ and $\text{0}\text{.010}\text{M}{\text{SO}}_4^{2-}$ after addition of solid barium nitrate has to be calculated.

Concept Introduction:

In a saturated solution, the molar solubility of salt is used to determine the solubility product.  The compounds which have high solubility product are more soluble in aqueous solution.

(b)

Interpretation Introduction

Interpretation:

The concentration of ${\text{Ba}}^{2+}$ when ${\text{BaF}}_{\text{2}}$ would start precipitating in the solution of $\text{0}\text{.010}\text{M}{\text{F}}^{-}$ and $\text{0}\text{.010}\text{M}{\text{SO}}_4^{2-}$ after addition of solid barium nitrate has to be calculated.

Concept Introduction:

Refer to part (a).