A room contains 3.9 x 10^4 grams of argon. If air has a density of 1.7 g/L and is 0.255% argon by...

Question

A room contains 3.9 x 10^4 grams of argon. If air has a density of 1.7 g/L and is 0.255% argon by mass, what is the size of the room?

David · Accepted Answer

A room contains 3.9 x 10^4 grams of argon. If air has a density of 1.7 g/L and is 0.255% argon by mass, 
what is the size of the room? 
Let “x dm3” is the size of the room – 
Then – 
3 4
3
1L 1.7 g 0.255
dm × × × =3.9×10 g
1dm 1L 100
x  
Therefore – 
3
3 4 1dm 1L 100dm =3.9×10 g
1L 1.

A room contains 3.9 x 10^4 grams of argon. If air has a density of 1.7 g/L and is 0.255% argon by mass, what is the size of the room?

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