Jaccari S.
asked • 05/08/21What volume will 0.128 g of propane, C3H8, (44 g/mol) occupy at a pressure of 485 mm Hg and a temperature of 30.0 0C?
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1 Expert Answer
ACacia S. answered • 06/04/21
Tutor
New to Wyzant
Associate's Degree in Biology
Using the gas equation PV=nRT you can find the volume.
P=485mm Hg or 0.638 atm
T=30.0C or 303.15K
R(gas constant)= 0.0821 L*atm/mol*K
n(moles)=0.128g/44gmol-1=0.0029moles
V=nRT/P
V=(0.0029moles*303.15K*0.0821L*atm/mol*K)/0.638=0.0724L*atm/0.638atm=0.113L
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Jaccari S.
the rest:Right before it exploded the air inside of the balloon has a volume of 0.870 L, and a pressure of 1.10 atm. What was the temperature of the exploded balloon outside of the store?05/08/21