Exam Review 2018: The Mole

The mole is a standard SI unit used primarily in chemistry. This is a collection of eight EASY chemistry questions dealing with the mole. A periodic will be useful to compete these questions. Answers are available on twitter @ellencorcino

1. How many moles is 6,000,000 atoms of copper equivalent to?
2. How many atoms are in 5 moles of silver?
3. How many atoms are in 1 gram of gold?
4. How many moles of sulfur are in 53.7 grams of sulfur?
5. How many grams are in a sample containing 2.71 x 10^24 atoms of iron?
6. How many moles of lithium (Li) are in 1 mole of lithium hydride (LiH)?
7. How many moles of oxygen (O) are in 1 mole of calcium carbonate (CaCO3)?
8. How many atoms if hydrogen are in 1 mole of water (H2O)?


Answers are available on twitter @ellencorcino

P.S. Remember this diagram, okay?

Where: 

MM = molar mass (you can calculate it from the using the periodic table)

MV = molar volume = 22.4 L/mol (a constant)

AN = Avogadro's number = 6.02 x 10^23 (another constant)

Expected units for the answers:

mass in grams

volume in liters

particles can be (a) atoms, (b) molecules if covalently bonded, and (c) formula units if its an ionic compound