WorksheetsMole to Mass Stoichiometry
Total questions: 15
Worksheet time: 15mins
What the are units for molar mass?
grams/mole
atoms/mole
grams/atoms
mloes/atom
What is the molar mass for oxygen gas (O2)?
16 g/mol
32 g/mol
14 g/mol
15.999g/mol
What is the molar mass for water (H2O)?
33 g/mol
14.32 g/mol
2.02 g/mol
18.02 g/mol
What is the conversion factor between mole and grams?
1 mole = 6.022 x 1023 grams
1 gram of the substance = molar mass of the substance
1 atom = 6.022 x 1023 moles
1 mole = 6.022 x 1023 atoms/particles
When calculating the molar ratio, we use the
Coefficients
Limiting Reagent
subscripts
subscripts
What is the molar mass of CO2?
40.01 L/g
40.01 g
44.01 g/atom
44.01 g/mol
What mass of NaCl can be produced from 0.75 mol of chlorine gas (Cl2)?
0.75 g
1.5 g
44 g
88 g
In stoichiometry, chemists are mainly concerned with
mole and mass relationships in chemical reactions.
the types of bonds found in compounds.
energy relationships in chemical reactions.
the speed with which chemical reactions occur.
For the reaction pictured how many moles of nitrogen gas (N2) are required to produce 18 mol of ammonia (NH3)?
18
9.0
4.5
36
What mass of carbon dioxide (CO2) can be produced from 25.0 g of calcium carbonate (CaCO3)?
25.0 g
11.0 g
22.0 g
56.0 g
What is the molar mass of sodium chloride (NaCl)?
58.44 g/mol
22.99 g/mol
35.45 g/mol
60.00 g/mol
In a chemical reaction, if you have 2 moles of hydrogen gas (H2) and 1 mole of oxygen gas (O2), how many moles of water (H2O) can be produced?
1 mole
2 moles
3 moles
4 moles
What is the mass of 0.5 moles of carbon dioxide (CO2)?
22.01 g
44.01 g
11.00 g
32.00 g
Which of the following is the correct conversion factor for converting moles of a substance to grams?
Molar mass of the substance
Avogadro's number
Density of the substance
Volume of the substance
If you have 18 grams of water (H2O), how many moles of water do you have?
1 mole
0.5 moles
2 moles
1.5 moles
