Avogadro's # and the Mole

What is the mole primarily used for in chemistry?

• To measure temperature

• To count atoms

• To measure volume

• To weigh objects

Who was Avogadro and what did he propose?

• A chemist who proposed a law about gas volume and particles

• A biologist who studied plants

• A mathematician who invented calculus

• A physicist who discovered gravity

What does an atomic mass unit represent?

• The mass of a molecule

• The mass of an electron

• The mass of a proton or neutron

• The mass of a compound

How many grams does 1 mole of water weigh?

• 9.01 grams

• 44.01 grams

• 18.02 grams

• 30.01 grams

What does the mole help us connect in chemical reactions?

• Speed and distance

• Color and smell

• Temperature and pressure

• Mass and number of particles