The Mole Molar Conversions.

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Molar Conversions (p.80-85, )

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The Mole Molar Conversions

A. What is the Mole? HOW LARGE IS IT??? 1 mole of hockey pucks would equal the mass of the moon! 1 mole of basketballs would fill a bag the size of the earth! 1 mole of pennies would cover the Earth 1/4 mile deep!

Molar Conversions Converting from moles to grams to representative particles and vice versa. Use the following conversion factor: 1 mole = 6.02 x 1023 representative units = molar mass (g) or formula weight Representative units - a. ionic compounds are called formula units b. molecular compounds are called molecules c. atoms are called atoms. Example of representative units - 6.02 x 1023 atoms Cu 6.02 x 1023 molecules O2 6.02 x 1023 units NaCl

Molar Conversion Examples How many moles of carbon are in 26.0 g of carbon? 26.0 g C 1 mol C 12.0 g C = 2.17 mol C

Molar Conversion Examples How many molecules are in 2.50 moles of C12H22O11? 2.50 mol C12H22O11 6.02  1023 molecules 1 mol C12H22O11 = 1.51  1024 molecules C12H22O11

Molar Conversion Examples Find the mass of 2.1  1024 formula units of NaHCO3. 2.1  1024 units NaHCO3 84.0 g NaHCO3 6.02  1023 units NaHCO3 = 290 g NaHCO3

Molar Conversion Examples Find the number of units of Iron (III) Chlorate in of 98.6 g of Iron (III) Chlorate. 98.6 g Fe(ClO3)3 6.02 x 1023 units Fe(ClO3)3 306.3 g Fe(ClO3)3 = 1.94 x 1023 units Fe(ClO3)3