1. How many particles are in a mole? 2. What is the name for the mole number?
3. How many particles are in 1 mol of carbon (C)? 1 mol of lithium (Li)? 1 mol of eggs? Will 1 mol of
each of these substances have the same mass?
Round each answer to 2 decimals.
4. How many particles are in 1.9 moles of iron (Fe)?
5. How many moles are in a sample containing 2.3 x 1024 atoms of xenon (Xe)?
6. What is the mass of 5 moles of potassium (K)?
7. What is the mass, in grams, of 7.4 moles of silicon (Si)?
8. How many atoms are in 80.45 g of magnesium?
9. What is the mass in grams of 1000 atoms of the carbon-12 isotope?
10. Which contains more atoms, 2.2 moles or 45.98 g of sodium (Na)?