7. A sample of Cl2 gas is loaded into an evacuated demonstration bottle at STP. The volume of the bottle is 0.25L. How many grams of Cl2 gas will be contained in the bottle?

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound

The size (radius) of an oxygen molecule is about 2.0 ×10−10m. make a rough estimate of the pressure at which the finite volume of the molecules should cause noticeable deviations from ideal-gas behavior at ordinary temperatures (t= 300k ). assume that deviatons would be noticeable when volume of the gas per molecule equals the volume of the molecule itself.