Density value is missing.
Depends on the density of the gas.
There are 1000 grams in a kilogram.
There are 2.2 pounds per kilo.
10 kilo gram
1000
1000
There is 500g in 1/2 a kg.
2.2 pounds make a kilo.
Strangely enough, this is the same as asking how many minutes in a gram, or how many dollars in a light year. The thing is that a cubic measurement is different from a square measurement (which in turn is different from a length measurement). You can't turn square feet into cubic feet, they won't go.
57kg
18,140,000
8.81