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VARSHINI

THE FIRST CHEMICAL COMPOND OF A RARE GAS ELEMENT WAS PREPARED IN1962.SINCE THEN SEVERAL SUCH COMPOUNDS HAV BEEN PREPARED A ND CHARACTERISED.WHAT IS THE EMPIRICAL FORMULA OF A COMPOND OF Xe WHICH IS 67.2%Xe AND 32.8%O BY MASS??

srini

Hey,

Hope this is right,

Xe 67.72 131.1 .5 1

O 32.8 16 2 4

XeO4

.

dinesh04

Hi,

Look,

Consider the initial mass of compound to be 100 gms

So, Xe is 67.2 gms and O is 32.8 gms

now,

Moles of Xe = 67.2 / 131.3 = 0.511 moles

Moles of O = 32.8 / 16 =2.05 moles

So, we get, Xe_0.511O_2.05

divide the subscripts by 0.511

We get, XeO_4.01 = XeO₄

This is the empirical formula of the required compound..

VARSHINI

THIS IS RIGHT
THANKU

VARSHINI

THANKS 4 UR REPLIES

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