A vessel of volume 100ml contains 10%O2 90%unknown gas.The gas defusing in 86second through a small vessel.If pure oxygen under the same condition diffuses in 75 second find the molecular mass of unknown gas.
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A vessel of volume 100ml contains 10%O2 90%unknown gas.The gas defusing in 86second through a small vessel.If pure oxygen under the same condition diffuses in 75 second find the molecular mass of unknown gas.
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Answer:
Let M2 and M1 Be the molecular weight of gases,
Molecular weight of gases = 32 .
Molecular weight of gas mixture
= ( 10×32 + 90×m) / 100 .
= 3.2 + 9×m .
we know that ,
r oxygen/ r mixture= √ m mixture/ m oxygen
= 86 /75 = √ 3.2 + 0.9 × m / 32
= m = 46.75 gm
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