33 what is the maximum mass in grams of 3 nh that can

33) What is the maximum mass in grams of
3
NH
that can be produced by the reaction of
1.0 g
2
N
with
3.0 g
of
2
H
via the equation below?
2 2 3
N (g) H (g) NH (g)  
(not balanced)
of
A) 2.0
B) 1.2
C) 0.61
D) 17
E) 4.0
Answer: B
34) Solid aluminum and gaseous oxygen react in a combination reaction to produce aluminum
oxide:
2 2 3
4Al (s) 3O (g) 2Al O (s)  
In a particular experiment, the reaction of 2.5 g of Al with 2.5 g of
2
O
produced 3.5 g of
3
Al O
.
The % yield of the reaction is __________.
2
A
35) Sulfur and oxygen react in a combination reaction to produce sulfur trioxide, an
environmental pollutant:
2 3
2 S (s) 3O (g) 2SO (g)  
In a particular experiment, the reaction of 1.0 g S with 1.0 g
2
O
produced 0.80 g of
3
SO
. The %
yield in this experiment is __________.
E

36) Sulfur and fluorine react in a combination reaction to produce sulfur hexafluoride:
2 6
S (s) 3F (g) SF (g) 
In a particular experiment, the percent yield is 79.0%. This means that in this experiment, a
7.90-g sample of fluorine yields __________ g of
6
SF
.

C
37)