Good News & Bad News About Chemistry, Plus Counting Without Counting http://www.chemistryland.com/CHM130W/ 07-Mole/Mole.htmhttp://www.chemistryland.com/CHM130W/ 07-Mole/Mole.htm
The Mole The Mole - a unit used to count small particles such as atoms Important Facts: The standard for the mole is the number of atoms in 12 grams of Carbon-12 This number is 6.023 x10 23 and is known as Avogadros number
How Many… 1.A dozen eggs is _____ eggs. 2.A dozen elephants is _____ elephants. 3.A dozen cars is _____ cars. 4.A dozen flying monkeys is _____ flying monkeys
How Many… 1.A mole of eggs is _____ eggs. 2.A mole of elephants is _____ elephants. 3.A mole of cars is _____ cars. 4.A mole of flying monkeys is _____ flying monkeys 5.A mole of atoms is _______ atoms. 6.A mole of molecules is ________ molecules. 7.A mole of dollar bills is ________ dollar bills. 8.A mole of particles is ________ particles. 9.A mole of anything is ___________.
The number is the same but is the mass? Is the mass of a dozen eggs the same as the mass of a dozen elephants? Is mass of a mole of carbon atoms the same as the mass of a mole of hydrogen atoms?