The Ksp of Ca3(PO4)2 is 1 x 10-33.   What is the solubility…

The Ksp of Ca3(PO4)2 is 1 x 10-33.   What is the solubility in moles per liter (mol/L) of Ca3(PO4)2 (s) in a 0.01 M Ca(NO3)2 (aq) solution? (Note: The molar mass of Ca3(PO4)2 is not needed in this problem, which asks for moles per L.)   a. 3.2 x 10-14 mol/L b. 3.0 x 10-15 mol/L c. 9.8 x 10-8 mol/L d. 1.6 x 10-14 mol/L e. 5.0 x 10-32 mol/L

An aqueous solution contains 0.034 M Br- and 0.079 M I-.   A…

An aqueous solution contains 0.034 M Br- and 0.079 M I-.   A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb+2 , which can form ppts of PbBr2 (s) and PbI2(s) .   Which of the following is entirely correct?a. I- precipitates first when = 3.4 x 10-7 M b. Br-precipitates first when = 1.4 x 10-4 M c. I- precipitates first when = 1.1 x 10-7 M d. Br-precipitates first when = 4.0 x 10-3 M e. I-precipitates first when = 1.3 x 10-6 M