Chapter 18, Problem 50E

Will the following precipitates form under the given conditions?

1. ${\text{Pbl}}_{\text{2}}\left(\text{s}\right)$ , from a solution that is $\text{1}\text{.05}\times {\text{10}}^{-2}\text{M}\text{Hl}$ , $\text{1}\text{.05}\times {\text{10}}^{-2}\text{MNa}$ , and $\text{1}{\text{.1×10}}^{\text{-2}}\text{MPb}{\left({\text{NO}}_{\text{2}}\right)}_{\text{2}}$ .

$\text{Mg}{\left(\text{OH}\right)}_{\text{2}}\left(\text{s}\right)$ , from 2.50 L of 0.0150 N Mg ${\left({\text{NO}}_{\text{3}}\right)}_{\text{2}}$ to which is added 1 drop (0.05 mL) of 6.00 U NH².

$\text{Al}{\left(\text{OH}\right)}_2\left(\text{s}\right)$ from a solution that is 0.010 M in ${\text{Al}}^{\text{2+}}$ , 0.010 M ${\text{CH}}_{\text{2}}\text{COOH}$, and 0.010 M NaCH₂COO.