Jeff and Jill go canoeing. While reaching to
feed a duck, the boat flips. Jeff and Jill blow
up their inflatable life preservers and then put
them on. As they wait for the rescue squad,
they calculate how much nitrogen is in each
life preserver. They estimate that the volume
is 17 L, pressurized to 1.3 atm at 298◦K. The air
used for inflation is 80% nitrogen by volume
and 20% oxygen by volume. Give the amount
of nitrogen gas.
Answer in units of grams.