Lecture 10.2a- Mole Mass Conversions

Bellwork- An argument for recycling ,[object Object],[object Object],[object Object],[object Object]

Converting between moles and number of particles involves multiplying or dividing by 6.02 x 10 23

Converting between moles and mass involves multiplying or dividing by the molar mass of the substance

Convert from moles to mass How much does 3.75 moles of magnesium metal weigh?

Convert from moles to mass How much does 3.75 moles of magnesium metal weigh? 3.75 moles Mg

Convert from moles to mass How much does 3.75 moles of magnesium metal weigh? 3.75 moles Mg X

Convert from moles to mass How much does 3.75 moles of magnesium metal weigh? 3.75 moles Mg X 24.305 grams 1 mole Mg

Convert from moles to mass How much does 3.75 moles of magnesium metal weigh? 3.75 moles Mg X 24.305 grams 1 mole Mg = 91.1 grams Mg

Convert from moles to mass How much does 3.75 moles of magnesium metal weigh? 3.75 moles Mg X 24.305 grams 1 mole Mg = 91.1 grams Mg WHERE THE HECK DID THIS COME FROM?!?

Convert from moles to mass How much does 3.75 moles of magnesium metal weigh? 3.75 moles Mg X 24.305 grams 1 mole Mg = 91.1 grams Mg WHERE THE HECK DID THIS COME FROM?!?  The periodic table!

10.5 Moles to grams 9.45 mol Al 2 O 3 x ___________ = 964g Al 2 O 3 1 mol Al 2 O 3 102g Al 2 O 3 2 Al = 54g 3 O = 48 g 102g

Mole Review huge # of particles  6 x 10 23  6 x 10 23 (g) grams (mass) molar mass molar mass   Use the periodic table! Use the mole banner!

Convert from number of particles to mass in grams ,[object Object]

Convert from number of particles to mass in grams ,[object Object],X 1 mole 6.02x10 23 atoms

Convert from number of particles to mass in grams ,[object Object],X 1 mole 6.02x10 23 atoms = 4 moles As

Convert from number of particles to mass in grams ,[object Object],X 1 mole 6.02x10 23 atoms = 4 moles As X 74.9 grams 1 mole

Convert from number of particles to mass in grams ,[object Object],= 299.6 grams of Arsenic X 1 mole 6.02x10 23 atoms = 4 moles As X 74.9 grams 1 mole

Convert from number of particles to mass in grams ,[object Object],= 299.6 grams of Arsenic ≈300g for multiple choice X 1 mole 6.02x10 23 atoms = 4 moles As X 74.9 grams 1 mole

[object Object],[object Object],[object Object],[object Object],[object Object],10.2 Section Quiz.

Lecture 10.2a- Mole Mass Conversions

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