Sodium chloride, NaCl, has a solubility of about 36 g/100mL of water. Thus if 50 g of NaCl is added to 100mL of water, 36 g will dissolve as Na+ and Cl- ions, but 14 g of solid NaCl will remain. Explain how this system appears static but in fact is a dynamic equlibrium, Na+(aq) + Cl-(aq) --> NaCl(s), that is in constant motion though the mass of solid is constant.