1. 1 Molar Mass and Moles

2. 2 Prozac, C 17 H 18 F 3 NO, is an antidepressant that inhibits the uptake of serotonin by the brain. What is the molar mass of Prozac? 1) 40.1 g/mole 2) 262 g/mole 3) 309 g/mole Learning Check

3. 3 Prozac, C 17 H 18 F 3 NO, is an antidepressant that inhibits the uptake of serotonin by the brain. What is the molar mass of Prozac? 3) 309 g/mole 17 C (12.0) + 18 H (1.01) + 3 F (19.0) + 1 N (14.0) + 1 O (16.0) = 204 + 18.2 + 57.0 + 14.0 + 16.0 = 309 g/mole Solution

4. 4 Molar mass factors are used to convert between the mass (grams) of a substance and the number of moles. Calculations Using Molar Mass Moles X ÷ Molar Mass Mass

5. 5 Aluminum is often used to build lightweight bicycle frames. How many grams of Al are in 3.00 mole Al? Moles to Grams

6. 6 Learning Check Allyl sulfide C 6 H 10 S is a compound that has the odor of garlic. How many moles of C 6 H 10 S are in 225 g?

7. 7 Grams, Moles, and Particles A molar mass and Avogadro’s number convert grams to particles. molar mass Avogadro’s number g mole particles

8. 8 Learning Check How many H 2 O molecules are in 24.0 g H 2 O? 1) 4.52 x 10 23 2) 1.44 x 10 25 3) 8.03 x 10 23

9. 9 Learning Check If the odor of C 6 H 10 S can be detected from 2 x 10 -13 g in one liter of air, how many molecules of C 6 H 10 S are present?