Am re-posting this question.A certain volume of oxgen diffused from a given apparatus in 125 secs.In the same conditions,the same volume of gas N,diffused in 100 secs.Calculate the RMM.I used graham's law but i think i did it the wrong way.Plz help out.

Answer 1

sqrt(N/32)=rateO/rateN=V/125/V/100= 125/100
N= 32*( 1.25)^2= 50

Answer 2

Where does 32 come from

Answer 3

Am sorry i got it

Answer 4

Well Lucy, you did it. I posted you didn't have the right answer and I would be glad to find your error if you posted your solution. You found someone who did your work for you.

Answer 5

Thanku for the concern