1. For the reaction, PCl3(g) + Cl2 (g) = PCl5 (g), calculate all three equilibrium concentrations when Keq [PCl5]o = 1.00 M and [PCl5]eq = 0.47 M. 2.For the reaction, COCl2 (g) = CO (g) + Cl2 (g), calculate all three equilibrium concentrations when [COCl2]eg = 0.217 M, [CO]o= 0.500 M, and [Cl2]o = 1.00 M.​

Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.