WorksheetsBasic Stoichiometry
Total questions: 8
Worksheet time: 22mins
Name
Class
Date
1.
What is the molar mass of C6H12O6?
a)
180.18
b)
180.12
c)
180.24
d)
180.06
2.
How many moles are in 98.3 g of Al(OH)3?
a)
2.14 mol
b)
1.26 mol
c)
6.63 mol
d)
5.9 mol
3.
How many grams is 1.2 moles of Neon?
a)
0.05 grams
b)
16.6 grams
c)
21.2 grams
d)
24 grams
4.
Using the balanced equation below,
Mg(s) + 2HCl(aq) --> MgCl₂(aq) + H₂(g)
How many moles of HCl are consumed in the production of 7.5 moles of MgCl₂?
Mg(s) + 2HCl(aq) --> MgCl₂(aq) + H₂(g)
How many moles of HCl are consumed in the production of 7.5 moles of MgCl₂?
a)
3.8 moles
b)
15 moles
c)
7.5 moles
d)
23 moles
5.
Using the balanced equation below,
CaC₂(s) + 2H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of Ca(OH)₂ would be formed with 3.20 moles of CaC₂?
CaC₂(s) + 2H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of Ca(OH)₂ would be formed with 3.20 moles of CaC₂?
a)
119 g
b)
21.2 g
c)
114 g
d)
237 g
6.
Given the following reaction 2NaClO3 (s) --> 2NaCl (s) + 3O2 (g). How many grams of NaCl are produced when 80.0 grams of O2 are produced?
a)
500 g Nacl
b)
96.7 g NaCl
c)
6960 g of NaCl
7.
Using the following equation:
4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(l)
How many grams of oxygen gas are needed to react with 56.8 grams of ammonia?
4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(l)
How many grams of oxygen gas are needed to react with 56.8 grams of ammonia?
a)
45.08 g O2
b)
133.33 g O2
c)
260.77 g O2
d)
75.92 g O2
8.
If 138.6 g of KClO3 is heated and decomposes completely, how many liters of oxygen gas is produced at STP?
2KClO3 (s) -->2 KCl (s) +3 O2 (g)
2KClO3 (s) -->2 KCl (s) +3 O2 (g)
a)
54.29 L O2 produced
b)
1.696 L O2 produced
c)
9.694 L O2 produced
d)
38.00 L O2 produced
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