How many moles of a pure gas are in a 30 liter scuba canister if the temperature of the canister is 27°C and the pressure is 0.4 atmospheres?

1 Answer
anor277
Feb 24, 2017

#n=0.487*mol#

Explanation:

#n=(PV)/(RT)=(0.4*cancel(atm)xx30*cancelL)/(0.0821*cancelL*cancel(atm)*cancel(K^-1)*mol^-1xx300*cancelK)#

#=0.487*mol#

This is not a very realistic problem given that few scuba tanks would have LESS than atmospheric pressure. Scuba tanks are also filled with air, and NOT a pure gas. For the purposes of this problem, we can still find the molar quantity.

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