mole conversions 2017.notebook · 2017. 12. 8. · mole of any substance's chemical formula....

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Mole Conversions 2017.notebook 1 December 08, 2017 Jan 2710:43 AM Mole Conversions Aim: To define the mole and convert between the units of grams, particles and liters using factorlabel. Jan 2710:43 AM What is a mole anyway? Jan 2710:43 AM What is a mole anyway? Jan 2710:43 AM Avogadro's Hypothesis 1 mole = 6.02 x 10 23 particles (atoms or molecules) What is a mole in Chemistry? 602,000,000,000,000,000,000,000 Mole: a unit that measures a specific quantity of atoms or molecules (both considered particles).

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Page 1: Mole Conversions 2017.notebook · 2017. 12. 8. · mole of any substance's chemical formula. Also called "molar mass", "molecular mass", or "formula mass". 1 mole = G.F.M in grams

Mole Conversions 2017.notebook

1

December 08, 2017

Jan 27­10:43 AM

Mole Conversions

Aim: To define the mole and convert between the units of grams, particles and liters using factor­label.

Jan 27­10:43 AM

What is a mole anyway?

Jan 27­10:43 AM

What is a mole anyway?

Jan 27­10:43 AM

Avogadro's Hypothesis

1 mole = 6.02 x 1023 particles (atoms or molecules)

What is a mole in Chemistry?

 602,000,000,000,000,000,000,000

Mole: a unit that measures a specific quantity of atoms or molecules (both considered particles).

Page 2: Mole Conversions 2017.notebook · 2017. 12. 8. · mole of any substance's chemical formula. Also called "molar mass", "molecular mass", or "formula mass". 1 mole = G.F.M in grams

Mole Conversions 2017.notebook

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December 08, 2017

Jan 27­10:43 AM

If we distributed 6.02 x 1023 dollars among the entire population of the planet each person would still have approximately 89 trillion dollars to spend

How much is a mole really?

Jan 27­10:43 AM

• In Chemistry we can use the mole to count atoms BECAUSE...

H

O

H

Gram‐formula mass (GFM): the mass in grams of 1 mole of any substance's chemical formula. Also called "molar mass", "molecular mass", or "formula mass".

1 mole = G.F.M in grams = 22.4 L of a = 6.02 x 1023 particles of a substance gas at STP of a substance

1 mole= 6.02 x 1023 molecules H2O

1 mole= 18.0 g H2O

GFM H2OH: 1.0O: 16.0 x 218.0 g

35.09 g x 1 mol x 6.02 x 1023 molecules = 1.174 x 1024

18.0 g 1 mol molecules H2O

35.09 g of water contains 1.174 x 1024 molecules

Example: How many molecules are in a beaker with 35.09 grams of water? Go from grams‐‐> moles ‐‐> molecules

Jan 27­10:43 AM

DO NOWYOU are working during your career as a lab technician for a major Chemical company. Your 

project manager has requested that you determine the number of water molecules in 1 

glass (8 ounces) of water. 

You are given the following information:• 1 ounce of water contains 28.3 grams.

You also have all of your handy­dandy knowledge of chemistry and the mole at your disposal.

Can YOU complete this task?

Jan 27­10:43 AM

Always convert to moles then to the desired unit.

ALL ROADS LEAD TO MOLES

Page 3: Mole Conversions 2017.notebook · 2017. 12. 8. · mole of any substance's chemical formula. Also called "molar mass", "molecular mass", or "formula mass". 1 mole = G.F.M in grams

Mole Conversions 2017.notebook

3

December 08, 2017

Jan 27­10:43 AM

1) A sample of NaCl weighs 45 grams.  How many moles are in the sample? 

Moles­Grams Conversions

2) How many grams are in a 0.25 moles of Mg(OH)2?

3) How many grams of NaCl are in a 3.00 mole sample?

Jan 27­10:43 AM

Mole­Particles Conversions

 3) How many atoms are in 0.340 moles of sodium?

4) How many moles are in 1.204 x 1024 molecules of Bromine?

 5) How many moles are in 5.60 x 10 21  atoms of He?

Jan 27­10:43 AM

 5) How many liters are in 0.75 moles of oxygen gas?

 6) How many moles are in 56.2 liters of water vapor?

Moles­Liters Conversions

Jan 27­10:43 AM

Mole Conversion Practice­ Multi Step

2) Determine the number of liters in 454 grams of CO2 gas at STP.

3) Determine the mass in grams of 3.60 x 1022 molecules of H2SO4

1) How many molecules are there in 160. grams of N2I6 ?

 4) How many atoms are in 44.0 grams of oxygen?

Page 4: Mole Conversions 2017.notebook · 2017. 12. 8. · mole of any substance's chemical formula. Also called "molar mass", "molecular mass", or "formula mass". 1 mole = G.F.M in grams

Mole Conversions 2017.notebook

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December 08, 2017

Jan 27­10:43 AM

MOLE MAP!!!!

PARTICLES

VOLUMEMASS