WorksheetsA6.7.4b: Multi-Step Mole Conversions
Total questions: 1
Worksheet time: 12mins
1-10.
Answer the questions below after watching the video
What is the central unit used in stoichiometry for conversions?
Moles
Particles
Grams
Liters
At what conditions is the conversion factor 22.4 L/mol used?
At boiling point of water
At STP
At room temperature
Under vacuum
What does Avogadro's number represent?
Mass of 1 mole of substance
Volume of 1 mole of gas at STP
Number of particles in 1 mole of substance
Number of particles in 1 gram of substance
How many steps are involved in the conversion from mass to particles?
Four steps
Three steps
Two steps
One step
What is the molar mass of iron?
32 grams/mole
6.022 grams/mole
22.4 grams/mole
55.85 grams/mole
What is the correct sequence of conversions to calculate the number of atoms from mass?
Mass to moles to particles
Mass to particles to moles
Particles to moles to mass
Moles to mass to particles
What conversion factor is used for converting volume to moles at STP?
55.85 g/mole
22.4 L/mole
Avogadro's number
Molar mass
What is the molar mass of diatomic oxygen used in the calculations?
44 g/mole
16 g/mole
64 g/mole
32 g/mole
How many significant figures are reported in the final answer for the mass of oxygen?
Five
Two
Three
Four
What is the purpose of setting up a conversion table in stoichiometry problems?
To organize the data and ensure correct unit conversions
To calculate the molar mass
To determine the experimental error
To measure the temperature and pressure
