Problem: How many moles of Ar are contained in a 5.00 L tank at 155°C and 2.80 atm? A) 0.399 moles B) 0.455 moles C) 1.10 moles D) 2.51 moles E) 0.289 moles

FREE Expert Solution

Calculate the number of moles of gas present in the container using the ideal gas equation.

PV=nRT

P = pressure, atm
V = volume, L
n = moles, mol
R = gas constant = 0.08206 (L·atm)/(mol·K)
T = temperature, K


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Problem Details

How many moles of Ar are contained in a 5.00 L tank at 155°C and 2.80 atm? 

A) 0.399 moles 

B) 0.455 moles 

C) 1.10 moles 

D) 2.51 moles 

E) 0.289 moles

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