Ideal Gas Law: A 24.0-L tank contains ideal helium gas at 27°C and a pressure of 22.0 atm. How many moles of gas are in the tank? (R = 8.31 J/mol ? K, 1 atm = 101 kPa)
A. 238 mol
B. 138 mol
C. 17.5 mol
D. 21.4 mol
E. 76.0 mol
Answer: D
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