A favorite reaction is calcite dissolution: CaCO3(s) Ca2+ + CO32- Ks = 10-8.3 a) Will the solid form or dissolve as we approach a thermal vent deep in the Pacific Ocean? Ans= More solid will form b) At equilibrium, what is the change in the CO32- concentration (ExpN) if the temperature increases from 5 to 20C? Assume the [Ca2+] = 0.001 M at both temperatures. Ans = [CO32-]=7.17e-6 M at 5C and [CO32-]=5.46e-6 M at 20C