WorksheetsStoichiometry Review
Total questions: 15
Worksheet time: 8mins
2 Al + 3 FeO 🡪 3 Fe + Al2O3
What is the mole ratio between FeO and Al2O3?
1 mole FeO = 2 mole Al2O3
1 mole FeO = 3 mole Al2O3
3 mole FeO = 2 mole Al2O3
3 mole FeO = 1 mole Al2O3
2 Al + 3 FeO 🡪 3 Fe + Al2O3
What is the mole ratio between Al and Fe?
1 mole Al = 2 mole Fe
1 mole Al = 3 mole Fe
2 mole Al = 3 mole Fe
2 mole Al = 1 mole Fe
2 Al + 3 FeO 🡪 3 Fe + Al2O3
Convert 8 moles of Al to moles of Fe
2 mole Fe
3 mole Fe
5.33 mole Fe
12 mole Fe
At home we have 6 slices of bread, 12 pieces of lunchmeat + 5 slices of cheese. We could only make 3 sandwiches.
What ingredient did we run out of first that limited the amount of sandwiches made?
Slices of Bread
Lunch Meat
Cheese
Hydrogen gas and Oxygen gas can be combined to form water. The reaction is as follows:
2 H2 + O2 🡪 2 H2O
If we have 8 hydrogen atoms and 3 oxygen atoms, what element will we run out of first that will limit the amount of water that can be made?
Hydrogen
Oxygen
Answer can not be determined with the information provided
2 H2 + O2 --> 2 H2O
1 mole H2 = 2 grams H2 1 mole O2 = 32 grams O2 1 mole H2O = 18 grams H2O
The set up to calculate the number of grams of O2 that can be made from 8 grams of H2 is provided for you below.
What belongs in Box A?
1 mole H2
2 mole H2
18 mole H2
N2 + 3 H2 --> 2 NH3
Choose the correct set up to convert 36 L of NH3 to L of H2
Ms. Piskor made aspirin in the lab. She was supposed to make 150 grams, but was only able to produce 87 grams.
Calculate the percent yield
58%
87%
150%
172%
MOLES REVIEW
What is the molar mass of NO3?
N = 14 g
O = 16 g
28 grams
58 grams
62 grams
90 grams
How many moles of NO3 are in 155 grams of NO3?
1 mole NO3
1.5 mole NO3
2 mole NO3
2.5 mole NO3
How many grams of NO3 are in 0.50 moles of NO3?
19.8 grams
31.0 grams
99.5 grams
155 grams
How many moles of MgCl2 are in 3.7 x 1024 formula units of MgCl2?
1.23
6.15
3.94
8.52
How many atoms of He are found in 3.00 moles of He?
3.33 x 1024 atoms of He
2.61 x 1024 atoms of He
1.81 x 1024 atoms of He
1.04 x 1024 atoms of He
How many liters of Cl2 are in 5 moles of Chlorine gas, Cl2?
4.48
56
75
112
How many moles of SF6 are found with 134.4 L of SF6?
7 moles SF6
6 moles SF6
5 moles SF6
4 moles SF6
