Stoichiometry
AP Chemistry · Flashcards
AP CHEMISTRY · FLASHCARDS
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QUESTION
Calculate the percent composition of oxygen in
H
2
O
H_2O
H
2
O
.
QUESTION
How many moles of
H
2
H_2
H
2
are needed to produce 2 moles of
N
H
3
NH_3
N
H
3
in
N
2
+
3
H
2
→
2
N
H
3
N_2 + 3H_2 \rightarrow 2NH_3
N
2
+
3
H
2
→
2
N
H
3
?
QUESTION
What is the first step in a stoichiometry problem?
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ANSWER
Write a balanced chemical equation. Ensures atom conservation for stoichiometric calculations.
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