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Problem
What is the percentage yield when 7 g ethene produces 6 g of ethanol?
C
2
H
4
(
g
)
+
H
2
O
(
g
)
→
C
2
H
5
OH
(
g
)
\text{C}_2\text{H}_4(\text{g}) + \text{H}_2\text{O}(\text{g}) \rightarrow \text{C}_2\text{H}_5\text{OH}(\text{g})
C
2
H
4
(
g
)
+
H
2
O
(
g
)
→
C
2
H
5
OH
(
g
)
M
r
(
ethene
)
=
28
M_r(\text{ethene}) = 28
M
r
(
ethene
)
=
28
and
M
r
(
ethanol
)
=
46
M_r(\text{ethanol}) = 46
M
r
(
ethanol
)
=
46
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