What volumes of the stock solution will you have to pipet into the flasks to prepare standards of 1.00, 2.00, 5.00, and 10.0x10^-3M KMnO4 solutions if you have a stock 0.100 M solution of KMnO4 and a series of 100-mL volumetric flasks?
What mass of gas does the container contains If the volume of a container is 39.4 Litres. and the container holds a gas at 13.2 degree Celsius. And 7.00x104 torr. Given The density of the gas =16.88 g/L. Express your answer (in kg.) Also determine the molar mass of the gas?