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Byju's Answer
Standard VIII
Chemistry
Percentage Composition of an Element in a Compound
What is the p...
Question
What is the percent composition of oxygen in
C
6
H
12
O
6
(molar mass = 180)?
A
25%
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B
33%
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C
40%
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D
53%
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E
75%
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Solution
The correct option is
D
53%
Total molar mass of O-atoms present in
C
6
H
12
O
6
=
6
×
16
=
96
g
/
m
o
l
Percentage composition =
96
180
×
100
=
53.33
%
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[The molar mass of this substance is 666.43 g/mol]
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