WorksheetsStoichiometry Practice
Total questions: 10
Worksheet time: 50mins
Name
Class
Date
1.
Balance the following reaction:
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
a)
1,2,1,2
b)
2,1,1,2
c)
1,2,1,1
d)
1,2,2,2
2.
Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?
a)
5.00 g
b)
7.29
c)
182 g
d)
218 g
3.
Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
What is the mass in grams of H₂ gas when 4.0 moles of HCl is added to the reaction?
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
What is the mass in grams of H₂ gas when 4.0 moles of HCl is added to the reaction?
a)
0.99 g
b)
4.0 g
c)
2.0 g
d)
6.0 g
4.
Using the balanced equation in question 1,
Mg(s) + HCl(aq) --> MgCl₂(aq) + H₂(g)
How many moles of HCl are consumed in the production of 7.5 moles of MgCl₂?
Mg(s) + HCl(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.
Balance the following reaction :
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
a)
1,2,2,2
b)
1,2,1,1
c)
2,1,1,1
d)
2,1,2,1
6.
Using the balanced equation in question 5, CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many grams of H₂O are needed if 3.20 moles of CaC₂ are consumed?
how many grams of H₂O are needed if 3.20 moles of CaC₂ are consumed?
a)
115 g
b)
28.8 g
c)
0.0889 g
d)
6.40 g
7.
Using the balanced equation in question 5,
CaC₂(s) + H₂O(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) + H₂O(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
8.
Using the balanced equation in question 5,
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many moles of Ca(OH)₂ would be produced if 3.5 moles of H₂O are consumed?
CaC₂(s) + H₂O(l) --> C₂H₂(g) + Ca(OH)₂(aq)
how many moles of Ca(OH)₂ would be produced if 3.5 moles of H₂O are consumed?
a)
1.75 moles
b)
7.0 moles
c)
3.5 moles
d)
11 moles
9.
Balance the following reaction:
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)
a)
4,10,2,1
b)
2,5,4,2
c)
1,2,2,1
d)
4,10,2,2
10.
Using the balanced equation in question 9,
C₂H₂(g) + O₂(g) --> CO₂(g) + H₂O(g)
How many moles of water (H₂O) are produced when 25.0 grams of C₂H₂ are consumed?
a)
0.960 moles
b)
0.480 moles
c)
1.92 moles
d)
3.84 moles
100 %
