Show:
The Mole
Moles and Mass
Moles and Volume
Moles and Particles
Potpourri
100
If you have 1 mole of donuts, how many donuts do you have?
6.02 x 1023 donuts
100
Give a definition for the term "molar mass"
The mass in grams of one mole of an element or compound.
100
What is the value for standard temperature?
0o Celsius
100

What is the molar mass of Al2(SO4)3 to the nearest whole number?

342 g/mol

100

What is the molar mass of antimony? (Round to the nearest whole number)

122 g

200
What is Avogadro's number?
6.02 x 1023
200

Find the mass of 0.35 moles of barium.

47.95 g Ba

200
What is the value for standard pressure?
1 atmosphere (1 atm)
200

How many water molecules are there in a 5.00 mole sample of water?

3.01 x 1024 molecules of water

200

What is the molar mass of sodium chloride? (Round to the nearest whole number)

58 g

300
If samples of two different elements each represents one mole, then what is the same about them?
They each contain the same number of particles, which is 6.02 x 1023 particles.
300

Find the mass of 45.1 moles of iron (III) sulfate.

18,040 g Fe2(SO4)3

300
Convert 2 moles of Ar gas to liters of Ar gas. Assume STP.
44.8 L
300

Convert 9.0 x 1020 atoms of Iron to moles of Iron.

0.0015 moles of Iron

300

What is the molar mass of zinc phosphate. (Round to the nearest whole number)

385 g

400
What similar between two gases that are both at STP?
They will both occupy 22.4 L of space.
400
Find the mass of 4.3 moles of Oxygen (at STP).
137.6 g O2
400
Convert 0.08 moles of He gas to liters of He gas. Assume STP.
1.792 L He gas
400

If you have a sample of 8,075 moles of copper atoms, how many individual atoms of copper do you have?

4.86 x 1027 moles of Carbon

400

Convert 78 g of CO2 to liters of CO2. (Assume STP)

39.71 L CO2

500

Why do we use the moles in Chemistry?

Atoms and molecules are extremely small, so in order to do Chemistry with them on a macroscopic scale we need to have an extremely large amount of them. The Mole is this extremely large amount.

500
Find the mass of 48 L of Neon (at STP)
42.86 g Ne
500
Convert 550 moles of Cl2 gas to liters of Cl2 gas. Assume STP.
12,320 L Cl2 gas
500

If you have 1 atom of Carbon, how many moles of Carbon do you have?

1.66 x 10-24 moles of Carbon

500
Convert 1050 L of H2O to molecules of H2O. (Assume STP)
2.82 x 1025 molecules H2O