compare the solubility of lead sulfide in each of the following aqueous solutions:
1. 0.10 M Pb(CH3COO)_2
2. 0,10 M (NH4)_2S
3. 0.10 M NaNO_3
4. 0.10 M NH4CH3COO
a. More soluble than in pure water
b. Similar solubility as in pure water
c. Less soluble than in pure water