In the process of salting-in, protein solubility in a dilute salt solution is increased by adding more salt. Because the protein solubility depends on the total ion concentration as well as the ion charge, salts yielding doubly charged ions are often more effective than those yielding singly charged ions.

(a) How many grams of MgCl2 must dissolve to equal the ion concentration of 62.1 g of NaCl?

(b) How many grams of CaS must dissolve? g CaS

(c) Which of the three salt solutions would dissolve the most protein? NaCl MgCl2 CaS.