A 585 mL tahnk is filled with nitrogen until the pressure is 42.0 atm at 25 degrees C. Assuming ideal behavior, calculate the number of moles of nitrogen in the tank.
Answer:
V = 0.585 L
T = 25 + 273 = 298 K
R = 0.0821 atm L / mol K
We use the equation pV = nRT
n is the number of moles
n = pV / RT = 42.0 x 0.585 / 0.0821 x 298 = 1.03
PV = nRT
V in L
P = atm
T = in Kelvin
R = 8.206 x 10^-2 Latm/mol K
n = PV/RT
plug and chug
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