Worksheetsstoichiometry
Total questions: 11
Worksheet time: 56mins
Name
Class
Date
1.
Calculate the molar mass of Mg(OH)2.
a)
33.2 g/mol
b)
41.3 g/mol
c)
86.9 g/mol
d)
58.3 g/mol
2.
How many grams are in 3.3 mol of Potassium Sulfide?
a)
360 g
b)
454 g
c)
238 g
d)
132 g
3.
How many molecules are there in 24.0 g of FeF3?
a)
2.68 x 1024 molecules
b)
3.29 x 1023 molecules
c)
1.28 x 1023 molecules
d)
1.76 x 1021 molecules
4.
2CO + O2 −-> 2CO2
How many liters of carbon dioxide are produced from 10L of carbon monoxide?
How many liters of carbon dioxide are produced from 10L of carbon monoxide?
a)
10
b)
20
c)
1
d)
5
5.
Formation of a percipitate is an example of a_____ change.
a)
chemical
b)
physical
6.
change in shape is an example of a_____ change.
a)
chemical
b)
physical
7.
Change in size is an example of a_____ change.
a)
chemical
b)
physical
8.
Being able to go back to it's original form is an example of a_____ change.
a)
chemical
b)
physical
9.
Considering the UNBALANCED reaction:
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
If 32 moles of iron metal was produced during the reaction, how many moles of carbon monoxide were consumed?
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
If 32 moles of iron metal was produced during the reaction, how many moles of carbon monoxide were consumed?
a)
21 moles
b)
21.3 moles
c)
48 moles
d)
64 moles
10.
Considering the UNBALANCED reaction:
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
How many moles of carbon dioxide are produced from 5.5 moles of carbon monoxide?
Fe2O3(s) + CO(g) --> Fe(m) + CO2(g)
How many moles of carbon dioxide are produced from 5.5 moles of carbon monoxide?
a)
5.5 moles
b)
2.75 moles
c)
11 moles
d)
7 moles
11.
Solid sodium oxide and water are mixed and aqueous sodium hydroxide is produced.
Write a balanced chemical equation for this reaction.
If 0.678 moles of sodium hydroxide are produced how many moles of sodium oxide was consumed in the reaction?
Write a balanced chemical equation for this reaction.
If 0.678 moles of sodium hydroxide are produced how many moles of sodium oxide was consumed in the reaction?
a)
0.339 moles
b)
1.36 moles
c)
0.678 moles
d)
2.71 moles
100 %
