Question

Refer to Appendix J for solubility products for calcium salts. Determine which of the calcium salts listed is most soluble in moles per liter and which is most soluble in grams per liter.

a) CaCO₃ (moles per liter), CaSO₄ (grams per liter)
b) CaSO₄ (moles per liter), CaCO₃ (grams per liter)
c) Ca(OH)₂ (moles per liter), Ca(NO₃)₂ (grams per liter)
d) Ca(NO₃)₂ (moles per liter), Ca(OH)₂ (grams per liter)

Answer 1

CaSO4 2H₂O is concluded to be the most soluble calcium salt in both moles per liter and grams per liter based on its solubility product.

Step-by-step explanation:

Based on the Appendix J's solubility products for calcium salts and the associated information given, it is determined that CaSO4 2H₂O is the most soluble calcium salt both in moles per liter and grams per liter. A solubility of 4.8 × 10⁻³ M for CaSO4 2H₂O, which is equal to the concentrations of SO4²⁻ and Ca²+, indicates that this calcium sulfate dihydrate is the most soluble among the calcium salts listed.

The most soluble calcium salt in moles per liter is CaSO₄, while the most soluble calcium salt in grams per liter is CaCO₃.

The solubility products for calcium salts are listed in Appendix J. Based on the information provided, we can determine that CaSO₄ is the most soluble calcium salt in moles per liter. In terms of grams per liter, CaCO₃ is the most soluble calcium salt.