Answer:
1.79x10^-14
Explanation:
pOH + pH = 14
H+=10^-pH
- Hope that helps! Please let me know if you need further explanation.
When HCl is added to metal ions, metal chlorides are produced. In this problem, it is asked whether the given ions precipitate or not when added to HCl. According to the rule, all chlorides except Ag+, Pb 2+, Hg2 2+ are soluble. Hence the ion that would precipitate is only lead (II) ion.
I would go with C, because you would always start with products and end with reactants.