Asked by lucy

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.
Answered by bobpursley
sqrt(N/32)=rateO/rateN=V/125/V/100= 125/100
N= 32*( 1.25)^2= 50
Answered by lucy
Where does 32 come from
Answered by lucy
Am sorry i got it
Answered by DrBob222
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.
Answered by lucy
Thanku for the concern
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