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WAEC Chemistry 2023 Paper
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© africaexams.com
Question : 1
Total: 50
The vapour density of an organic compound with the molecular formula
C
2
H
4
O
2
is
[
H
=
1.0
,
C
=
12.0
,
O
=
16.0
]
40
120
65
30
Validate
Solution:
Molar mass of
C
2
H
4
O
2
,
=
(
12
×
2
)
+
(
1
×
4
)
+
(
16
×
2
)
=
60
g
∕
mol
Vapour density
=
RMM
∕
2
=
60
∕
2
=
30
© africaexams.com
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