The chemical analysis of a compoun d having mol mass 188 gave c12.8%
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Answer:
Divide the percentages with atomic masses-
carbon
12
12.8
1.06 1
Hydrogen
1
2.1
2.1 2
Bromine
79.9
85.1
1.06 1
Empirical formula- CH
2
Br
(Empirical formula wt)
n
=188 or (94)
n
=188 or n=2
So molecular formula will be - (CH
2
Br)
2
=C
2
H 4
Br 2
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