Answers: Exercise 3_4 Atom Economy/ Percentage Yield

1.	B
2.	C
3.	C
4.	C
5.	D
6.	A
7.	D
8.	D
9.	C
10.	D

11.	Method 2 [18% vs 7%]
12.	100%
13.

14.
a)	75cm³
b)	2.26g
c)	77%
	Percentage Yield = Actual Yield/ Max. Theoretical Yield X 100 = 1.97/2.55 X 100 = 77%
d)	16%
15.
a)
b)	0.56g
c)	55.2cm³/ 0.0552l
ii)	Yield = actual/theoretical =50.8/55.2 =92.03%
iii)	Underwater/ gas syringe
d)	72.6%

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