For each of the following compounds, decide whether the compound's solubility in aqueous solution changes with...

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For each of the following compounds, decide whether the compounds solubility in aqueous solution changes with pH. If the sol

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Answer 1

Answer #1

1) CaCl₂

solubility does not change with P^H

since CaCl₂ does not react with water .since it is a salt of strong acid HCl and strong base Ca( OH )₂

2 ) PbF₂

solubility change with P^H

since PbF₂ is salt of weak base HF so in aqueous solution following reaction take place

H⁺ ( aq ) + F ^- ( aq ) form HF ( aq ) .so Fluoride is removed to maintain equilibrium PbF2 has to dissolve more that’s why solubility is more in acidic solution

so highest solubility will be in P^H = 6 solution

3 ) AgCl

solubilility does not change with P^H

since AgCl does not react chemically with water it is salt of strong acid ( HCl ) and strong base ( AgOH )

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Answer 2

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