AUSTIN POWERS-THE MOLE

http://www.youtube.com/watch?v=rc5G04nJecI

THE MOLE

WHAT IS A MOLE?

• Commonly abbreviated mol

• It’s a number used to count things

• 1mol = 6.02 × 1023 (Avogadro's number)

WHAT KINDS OF THINGS?

• Number of atoms in an element

• Number of formula units in an ionic compound

• Number of molecules for a compound that is covalently bonded

TOM LEHRER-THE MOLE SONG

http://www.youtube.com/watch?v=1R7NiIum2TI

EXAMPLE 1

Determine the number of atoms in 3.50 mol of aluminum (Al)?

EXAMPLE 2

Given 4.25 mol of sodium chloride (NaCl), determine the number of formula units?

EXAMPLE 3

Calculate the number of molecules in 12.6 mol of sulfer dioxide (SO2).

EXAMPLE 4

How many moles are in 6.75 × 1024 atoms of nickel (Ni)?

EXAMPLE 5

How many moles are in 1.25 × 1024 molecules of carbon dioxide (CO2)?

EXAMPLE 6

How many moles are in 6.78 × 1023 formula units of magnesium chloride (MgCl2)?