What volume is occupied by a #5.0*g# mass of ammonia that is placed in a piston and allowed to expand against a pressure of #740*mm*Hg# at a temperature of #50# #""^@C#?

1 Answer
Sep 15, 2017

Answer:

So we conceive that in this experiment, a mass of condensed ammonia is enclosed in a piston, which is allowed to expand against a pressure of #740*mm*Hg# and a temperature of #50# #""^@C#.

Explanation:

We use the old Ideal Gas equation.....

#V=(nRT)/P=((5.0*g)/(17.03*g*mol^-1)xx0.0821*(L*atm)/(K*mol)xx323*K)/((740*mm*Hg)/(760*mm*Hg*atm^-1))#

#~=8*L#......

Do the units in the expression cancel out to give an answer in litres? If they do not, then we have made a mistake.