WorksheetsThe Mole
Total questions: 20
Worksheet time: 20mins
What is Avogadro's number?
6.02 x 1023
1 mole
600 million
6.02
How many moles are in 6.02 x 1023 molecules of H2O?
1 mole
2 moles
6.02 moles
602000000000000000000000 moles
One mole of carbon dioxide (CO2) contains 6.02 x 1023 _____.
atoms
formula units
ions
molecules
How many moles are in 8.30 X 1023 molecules of H2O?
1.38 X 1023 moles H2O
1.38 moles H2O
2 moles H2O
1 mole H2O
How many molecules are there in 31.8 moles of water?
5.28 x 10-23 molecules
1.91 x 1025 molecules
5.28x 10-25 molecules
1.91 x 1023 molecules
A mole is:
The SI unit for mass
The SI unit for the amount of a substance
The SI unit for volume
The SI unit for area
What is the conversion factor that should be used to determine how many molecules are there in 4.00 moles of glucose, C6H12O6?
What converting from moles to the number of particles, moles is multiplied by:
an equivalent value
a conversion factor
the number of atoms in the formula
the mass of the substance
Which has the most particles?
1 mole H2
1 mole Na1+
1 mole Al(OH)3
These are all the same
How many atoms are in 1 mole of Iodine (I)?
6.022 x 1023
4.022 x 1023
6.022 x 1025
4.022 x 1025
Why is the mole used in chemistry?
The mass of atoms is in AMUs which is too hard to convert to grams.
A dozen is not a scientific amount.
Chemists needed to make chemistry easier to understand.
It makes counting large numbers of small particles easier.
SELECT ALL CORRECT ANSWERS - The mole can be used to measure:
The amount of atoms in an element
The amount of molecules in a covalent substance
The amount of formula units in an ionic compound
The amount of mass an object has
How many moles there are in 5.68 x 1024 formula units of AlCl3?
3.42 x 1024 moles
9.44 x 1024 moles
9.44 moles
3.42 moles
What is correct equation that should be used to determine how many molecules there are in 0.75 moles of (NH4)3PO4?
How many moles are in 4.5 x 1024 atoms of lithium?
2.71 x 1048 particles
7.47 moles
7.47 x 1024 atoms
2.71 moles
How is moles abbreviated?
M
m
mol
ml
What is the correct equation to determine how many calcium ions (Ca2+) in 2 moles?
This cannot be determined as calcium is not bonded.
How many moles of Na contain 1.45 x 1021 atoms of Na?
8.73 x 1044 moles
8.73 moles
0.00241 moles
2.41 x 1044 moles
What is the correct equation to calculate the number of moles in 3.13 x 1026 molecules of H2O2?
What are the units for Avogadro's number?
meters
particles
grams
liters
