1. A 2.00 L container with 4.05g of ethane gas (C2H6) is placed in a constant
temperature bath. The pressure in the container stabilizes to 1.46 atm. What is
the temperature (K) of the gas?
2. Calculate the volume (L) of 525g N2 at 787 torr and 25oC.
3. Some commercial drain cleaners contain two components: sodium hydroxide and
aluminum powder. When the mixture is poured down a clogged drain, the
following reaction occurs:
2NaOH(aq) + 2Al(s) + 6H2O(l) 2NaAl(OH)4 (aq) + 3H2(g)
The heat generated in this reaction helps to melt away grease and the hydrogen
gas released stirs up the solids clogging the drain. Calculate the volume of H2
formed at 25
oC and 1.02 atm if 3.72 g of Al is treated with excess NaOH and