Sorry to be late,
1-Ca and Mg acetate are considered as a comletly ionic salts,
2-Due to they are salts of Ca/or Mg they are dificultly to be dissolve in water.
3-The only way to dissolve These salts,to convert them complexes like formic acid ,or using EDTA
4-Normally,Mg and Ca in forms of bicarbonate and chloride are soluble in water
If this is nor effecient,explian to me what you want to do more ..then i will help you more inshaa allah Sorry ,Iam not from the supervisors team