How many grams of ethane gas (c2h6) are in 12.7-liter sample at 1.6 atmosphere and 24 degrees celsius? show all work used to solve this problem.

Data:
M (Molar Mass) of C2H6
C = 2*12 = 24 amu
H = 6*1 = 6 amu
---------------------
MM C2H6 = 24+6 = 30 g/mol

P (pressure) = 1.6 atm
V (volume) = 12.7 L
R = 0,082 atm .L/mol.K
n (Number of mols) →  
 
Since , we can perform the following substitution in the above Clapeyron equation:




multiply cross


Solving:





25.03 grams of ethane gas 

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Sorry i dont understand the question can you rephase it?