1. Austin High School Chemistry Ms. Lizette Gutierrez

2.  Avogadro’s number (a constant) tells us how many representative particles are in 1 mole of anything!  The number of particles in exactly 1 mole is 6.022 x 10 23. This is Avogadro’s number.  There are 12 of anything in one dozen  The mole is a counting system just like the dozen  There are 602,200,000,000,000,000,000,000 of anything in one mole.

3. Depending on the substance, the representative particles are called different things. Look at the chart below. Types of SubstancesRepresentative Particle ElementAtom Molecular Compound (covalent)Molecules Ionic CompoundFomula Units

5. Aluminum is often used for the structure of light-weight bicycle frames. How many grams of Al are in 3.00 moles of Al?

6. You and your friend discover a buried treasure in your back yard. You find a pure elemental gold (Au) bar. The total weight for the gold bar is 2500 grams. How many moles of gold (Au) did you find?

7. Prozac, C 17 H 18 F 3 NO, is a widely used antidepressant that inhibits the uptake of serotonin by the brain. How many moles of Prozac does a sample of 550 grams of Prozac contain?

8. The artificial sweetener aspartame (Nutra-Sweet) formula C 14 H 18 N 2 O 5 is used to sweeten diet foods, coffee and soft drinks. How many grams of aspartame are present in 3.43 moles of aspartame?