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# is this correct? unit conversion watch

1. calculate the mass in air in a room volume 140m^3
1.2kgm^-3(density of air)*140m^3=168kg
2. pppppppppppppppppppppppppppppppp ppppppppppppppppppppppppppppp
3. The problem here is that you don't seem to have done any unit conversions. The volume you are given is 140 cubic cm, but you have put 140 cubic m into the equation.

How many cubic metres are there in 140 cubic centimetres?
4. (Original post by Pangol)
How many cubic metres are there in 140 cubic centimetres?
That is one very small room.
5. (Original post by RichE)
That is one very small room.
Certainly is! I wonder if the error is with the reproduction of the question...

(Might be a room in a model house!)
6. (Original post by Pangol)
Certainly is! I wonder if the error is with the reproduction of the question...

(Might be a room in a model house!)
lol it isnt cm
7. (Original post by p29)
lol it isnt cm
Well it's not now that you've edited your first post!

Based on the real question, yes, this is right. Not sure why it's a unit conversion question, though - no units have been converted...

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