Calculate the pzn of a solution prepared by mixing 25.0 ml of 0.0100 m edta with 50.0 ml of 0.00500 m zn2*. assume that both the zn2* and edta solutions are buffered with 0.100 m nh3 and 0.176 m nh2c1

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.