The Mole.

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Presentation transcript:

The Mole

What is a mole (mol)? A metric unit used to measure the amount of a substance 1 mole = 6.02 X 1023 Used to count what types of things? Very small

Dimensional analysis How many moles are in 2.11 X 1024 molecules of sucrose (C12H22O11)?

Conversion factors

# atoms in 2.5 mol Zn

# formula units in 3.25 mol AgNO3

# mol in 5.75 X 1024 atoms of Al

How many grams are in 3.5 mol Zn? What do you need to know?? How many grams are in one mole Where can you find that information? The periodic table

Molar Mass The mass of 1 mole of a substance ex) 1 mol Cu = 63.55 g Units g/mol ex) 1 mol Cu = 63.55 g

What is the molar mass of….. CuCl2 C7H6O3 Ba(OH)2

How many moles are in 525 g Ca?

Try these…… X g C6H12O6 in 5 mol? X mol in 5.5 g NaCl? X formula units in 3.2 g AgNO3?

What about particles to grams? 3.2 X 1025 particles of K to grams. 125.4 grams HCl to formula units.