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Stoichiometry Practice
By Cesar Sertzen
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Last updated over 5 years ago
4 questions
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Note from the author:
gram-gram stochiometry practice
Mole practice continued - 3a
1
1
1
1
Question 1
1.
3Ca(OH)
2
+2H
3
PO
4
→Ca
3
(PO
4
)
2
+3H
2
O
Use dimensional analysis to calculate how many grams of H
2
O
will be produced if 111.5 grams of Ca(OH)
2
are reacted.
Hint: You will need to find the molar mass of Ca(OH)
2
and the molar mass of H
2
O.
Question 2
2.
2 C
4
H
10
+ 13 O
2
→ 8 CO
2
+ 10 H
2
O
Using dimensional analysis calculate how many grams of CO
2
are produced when 100 grams of butane, C
4
H
10,
gas are reacted.
Hint: You will need to calculate the molar mass of CO
2
and C
4
H
10
Question 3
3.
4Fe(s)+3O
2
(g)→2Fe
2
O
3
(s)
Use dimensional analysis to calculate how many grams of iron (iii) oxide, Fe
2
O
3
are produced if 55 grams of iron are reacted.
Hint: You will need to calculate the molar mass of Fe
2
O
3
and Fe
Question 4
4.
P
4
+ 6Cl
2
→ 4PCl
3
Using dimensional analysis calculate how many grams of phosphorus are reacted if 250g of phosphorus trichloride, PCl
3
, are produced