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Chemistry
Study Set
Introductory Chemistry Study Set 2
Quiz 8: Quantities in Chemical Reactions
Path 4
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Question 81
Multiple Choice
What is the limiting reactant for the reaction below given that you start with 10.0 grams of Al and 19.0 grams of O
2
? Reaction: 4Al + 3O
2
→ 2Al
2
O
3
Question 82
Multiple Choice
If 16.0 grams of aluminum oxide were actually produced,what is the percent yield of the reaction below given that you start with 10.0 g of Al and 19.0 grams of O
2
? Reaction: 4Al + 3O
2
→ 2Al
2
O
3
Question 83
Multiple Choice
How many grams of aluminum oxide are produced according to the reaction below given that you start with 10.0 grams of Al and 19.0 grams of O
2
? Reaction: 4Al + 3O
2
→ 2Al
2
O
3
Question 84
Multiple Choice
Which is the excess reactant in the following reaction given that you start with 15.5 g of Na
2
S and 12.1 g CuSO
4
? Reaction: Na
2
S + CuSO
4
→ Na
2
SO
4
+ CuS
Question 85
Multiple Choice
The reaction for the oxidation of NH
3
is given as: 4 NH
3
+ 5 O
2
→ 4 NO + 6 H
2
O Under certain conditions the reaction will proceed at 29.8% yield of NO.How many grams of NH
3
must be made to react with excess oxygen to yield 70.5 g of NO?
Question 86
Multiple Choice
Which is the limiting reactant in the following reaction given that you start with 42.0 g of CO
2
and 99.9 g KOH? Reaction: CO
2
+ 2KOH
→ K
2
CO
3
+ H
2
O