WorksheetsSTOICHIOMETRY
Total questions: 20
Worksheet time: 40mins
How many total atoms are there in one molecule of Fe(NO3)3?
3
8
10
13
One mole of the element C (carbon) is equal in mass to one mole of the element H2 (hydrogen).
true
false
A 0.50 mole sample of CaCO3 contains 63 grams of calcium carbonate.
true
false
What is the number of moles of beryllium in 36 g of Be?
0.25 mol
4.0 mol
45 mol
320 mol
What is the mass of 8 moles of sodium chloride (NaCl)?
7.3 grams
468 grams
0.137 g/mol
468 mol
Determine the number of moles of CH4 that are in 35.2 g of the compound.
525.3 mol
563.2 mol
4.6 mol
2.2 mol
Which of the following setups correctly shows the conversion of 160g of Al(NO3)3 to moles?
(molar mass = 213 g/mole)
The amount of a substance that contains 6.02 X 10 23 particles is called
dozen
limiting reactant
mole
mouse
To work stoichiometry problems, we must start with a
_______________ .
reactant
2 reactants
chemical equation
balanced chemical equation
Stoichiometry relates molar quantities of reactants and products to each other much like a(n)
experiment
recipe
mixture
data table
To form mole ratios comparing reactants and products in a balanced chemical equations, chemist use
The coefficients in an unbalanced chemical equation
the coefficients in a balanced chemical equation
the subscripts indicating how many of each type of atom are present
the molar masses of the chemicals
In the reaction 2CO + O2 → 2CO2, what is the ratio of moles of oxygen used to moles of CO produced?
1:1
2:1
1:2
2:2
N2 + 3H2 → 2NH3
What is the mole ratio between N2 and NH3 in the above reaction?
1 moles NH3 / 2 moles N2
2 moles NH3 / 1 moles N2
2 moles N2 / 3 moles NH3
1 moles N2 / 2 moles NH3
Which of the following represent a mole ratio between silver nitrate and copper (II) nitrate in the following reaction:
2AgNO3 + Cu → Cu(NO3)2 + 2Ag
2 mol AgNO3 / 2 mol Ag
2 mol Ag / 2 mol AgNO3
2 mol AgNO3 / 2 mol Cu(NO3)2
2 mol AgNO3 / 1 mol Cu(NO3)2
How many moles of aluminum are needed to react completely with 1.2 mol of FeO?
2Al + 3FeO → 3Fe + Al2O3
1.2 mol
0.8 mol
1.6 mol
2.4 mol
Given
Al2(SO4)3 + 3 Ca(OH)2 → 2 Al(OH)3 + 3 CaSO4
If 4 moles of Al2(SO4)3 are used in the reaction, how many moles of calcium sulfate will be produced?
4 moles
2 moles
3 moles
12 moles
Use the following balanced equation
Al2(SO4)3 + 3 Ca(OH)2 → 2 Al(OH)3 + 3 CaSO4
If aluminum sulfate combines with 6 moles of calcium hydroxide, how many moles of calcium sulfate will be produced?
1 mole
2 moles
3 moles
6 moles
Using the following equation:
Fe2O3 + 3H2 → 2Fe + 3H2O
How many moles of iron can be made from 3 moles of Fe2O3?
6 moles Fe
4 moles Fe
2 moles Fe
1 moles Fe
Using N2 + 3H2 → 2NH3
How many moles of NH3 will be produced when you react 3.6 mol H2?
The dimensional analysis used to solve the problem above will look like…
Using 2 Cr2O3 → 4 Cr + 3 O2
How many grams of Cr are produced when 576 grams of Cr2O3 are reacted?
The dimensional analysis used to solve the problem above will look like…
