WorksheetsStoichiometry
Total questions: 10
Worksheet time: 1hrs 13mins
Name
Class
Date
1.
Mole ratios are obtained from the
a)
balanced chemical equation
b)
periodic table
c)
molar mass
d)
electronic balance
2.
What is the mole ratio if H2O is the 'asked for' and H3PO4 is 'given' in the following chemical equation?
P4O10 + 6 H2O --> 4 H3PO4
a)
6/4
b)
4/6
c)
1:4
d)
4:1
3.
N2 + 3H2 → 2NH3
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
How many moles of hydrogen are needed to react with 2 moles of nitrogen?
a)
6
b)
2
c)
3
d)
1
4.
How many moles of water are made from complete reaction of 2.2 moles of oxygen gas with hydrogen gas?
Given the reaction: 2H2 + O2 → 2H2O
a)
4.4
b)
1.1
c)
2.2
d)
3.3
5.
What is the molar mass of C6H12O6? (use the periodic table on the back of the formula sheet)
a)
180.18
b)
180.12
c)
180.24
d)
180.06
6.
How many grams are in 7.73 moles of NaCl?
a)
476grams
b)
460 grams
c)
452 grams
d)
462 grams
7.
Using the following equation:
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 6 moles H2?
a)
4 moles Fe
b)
6 moles Fe
c)
9 moles Fe
d)
2 moles Fe
8.
2Al + 3H2SO4 -> Al2(SO4)3 + 3H2
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
How many grams of aluminum sulfate would be formed if 250g H2SO4 completely reacted with aluminum?
a)
0.85 g
b)
290 g
c)
450 g
d)
870 g
9.
For the reaction represented by the equation Cl2 + 2KBr → Br2 + 2KCl, how many grams of potassium chloride can be produced from 356 grams potassium bromide?
a)
749 g
b)
225 g
c)
479 g
d)
814 g
10.
How many grams of water are made from the reaction of 4.0 grams of hydrogen gas?
Given the reaction: 2H2 + O2 → 2H2O
a)
18
b)
72
c)
36
d)
4.5
100 %
