1. The physical entrainment of soluble impurities in a growing crystal

a. adsorption

b. occlusion

c. nucleation

d. co-precipitation

2. AgCl would be least soluble at 25C in ___.

a. 0.1M HCl

b. 0.1M CaCl2

c. 0.1M HNO3

d. pure water

3. The mercury in a given sample was precipitated using paraperiodic acid, H5IO6 as Hg5(IO6)2. The gravimetriuc factor used in calculating the % HgCl2.

a. 5Hg2Cl2/2Hg5(IO6)2

b. Hg5(IO6)2/Hg2Cl2

c. Hg2Cl2/Hg5(IO6)2

d. 2Hg5(IO6)2/5Hg2Cl2