just checking...

[DB]

what pressure will be exerted by 0.450 mol of a gas at 25 degrees Celsius if it is contained in a vessel wwhose volume is 0.65 L?

\frac{P_1 * 0.65 L}{298 K * 0.450 mol}=8.31_\frac{L*kPa}{K*mol}


P_1 \sim 1714.4 kPa

is this right?
thanks

[Pengwuino]

Yes that is correct although you didn't setup the equation as best you could.

\frac{{PV}}
{{RT}} = n

could have been changed to

\frac{{nRT}}
{V} = P

to make it a much simpler calculation since you are actually looking for P

[DB]

thanks pengwuino, ya i know, the simple algebra doesn't bother me tho :)