How many moles of gas occupy 198 L at a pressure of 3.8 atmospheres and a temperature of 23 0C ?

1 Answer
Mar 13, 2018

31 moles

Explanation:

Use the ideal gas law (pV=nRTpV=nRT) to calculate moles.
p= 3.8atmp=3.8atm, R=0.082057(L*atm)/(mol*K)R=0.082057LatmmolK, T(23˚C)=296.15K,
V=198L. Put everything into the equation and solve for n.

3.8*198=n*0.082057*296.15 Divide both sides by R*T value.

n=30.9=31 mol