7) An 1.05 mol sample of oxygen gas at a temperature of 27.0 oC is found to occupy a volume of 21.7 liters. Calculate the pressure of this gas sample in atm.
8) A 0.155 mol sample of oxygen gas has a volume of 834 milliliters at a pressure of 4.93 atm. Calculate the temperature of the O2 gas sample on the Celsius scale.
9) A sample of oxygen gas collected at a pressure of 1.05 atm and a temperature of 301 K is found to occupy a volume of 568 milliliters. How many moles of O2 gas are in the sample?
10) Iron nail rusts when exposed to oxygen.
4 Fe (s) + 3 O2 (g) 2 Fe2O3 (s)
a) What volume of oxygen gas at 31.0 oC and 1.40 atm is required to react completely with 57.3 g of iron according to the above reaction?
b) How many grams of iron(III) oxide are produced to from 18.3 L of oxygen gas at 25.0 oC and 1.06 atm according to the above reaction?
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