Question

A sample of gas has a volume of 1.54 Liters at a pressure of 1.34 atm at 280K.

How many moles of gas are in the sample?

Answer 1

0.898 moles

Step-by-step explanation:

In order to solve this, we need the gas constant:

gas constant: R=0.082057338 L atm K^(-1) mol^(-1)

p = pressure = 1.34 atm

v = 15.4 L

t = temperature = 280K

pv / (Rt) =

`(1.34 atm * 15.4 L)/(0.082057338 Latm K^(-1)mol^(-1) * 280K)` = ==> substitute known values

`(20.636)/(0.082057338 * 280)` = ==> simplify

`(20.636)/(22.976)` =0.898 moles