1)A 2.20 gram sample of an unknown gas is found to occupy a volume of 0.872 L at a pressure of 832 mm Hg and a temperature of 59 °C. The molecular weight of the unknown gas is _______ g/mol.
2)What volume of hydrogen gas is produced when 81.9 g of iron reacts completely according to the following reaction at 25 °C and 1 atm?
3)How many grams of iron are needed to completely consume 33.3 L of chlorine gas according to the following reaction at 25 °C and 1 atm?
4)How many grams of iron are needed to completely consume 33.3 L of chlorine gas according to the following reaction at 25 °C and 1 atm?
CH4(g) + H2O(g)3H2(g) + CO(g)
5)A sample of gas contains 0.2000 mol of H2(g) and 0.2000 mol of O2(g) and occupies a volume of 22.8 L. The following reaction takes place:
H2(g) + O2(g)H2O2(g)
iron (s) + hydrochloric acid(aq)iron(II) chloride (aq) + hydrogen(g)