Working With Moles. HW – Ques. 7.14 2Pb(CH 3 ) 4 + 15O 2  2PbO + 8CO 2 + 12H 2 O a. How many moles of O 2 are needed to burn 4.6 moles of Pb(CH 3 ) 4.

Slides:

Advertisements

Similar presentations

The Arithmetic of Equations

Advertisements

The Mole IV. CONVERTING BETWEEN PARTICLES AND MASS.

Quantities in Chemistry The Relationship Between Mole and Molar Mass.

Molar & atomic Mass Mole  > particles Mass  > Mole Molar Volume of Gas Gas Density

Mole  measurement of the number of particles in a sample  1 mol He (g) = 6.02 x atoms  1 mol CO 2(g) = 6.02 x molecules.

The Mole Chapter 9 What is a mole? A mole of a substance is the amount of that substance which contains 6 x particles of that substance.

1 Mr. ShieldsRegents Chemistry U04 L03 2 What Are Mole Conversions? We’re now going to look at some useful Relationships (that is conversions). Actually,

Grams to Moles to Molecules. How many molecules in 5.00g of hydrogen gas? 5.00g H 2 x 1mole x 6.02 x molecules = 2.02 g1 mole = 5.00 / 2.02 x 6.02.

Converting between Moles, Mass and Number of Particles Number of Particles to Mass Chemistry 11 Ms. McGrath.

IIIIIIIV Unit 5 – The Mole I. Molar Conversions. Molar Conversions n Molar Mass is a conversion factor to convert mass of any element or compound to moles.

Unit 5: The Mole and Stoichiometry

Bianca Fernandez will you go to homecoming with Greg Somers? Day

Moles, Avogadro’s Number and Molar Mass

All Roads Lead to Mole City

Chapter 7: Chemical Formulas and Chemical Compounds

The Mole Chapter 7 Chemical Quantities Determine the percent composition of Fe(OH) 2 Fe – 1 x 55.8 = 55.8 O – 2 x 16 = 32 H – 2 x 1 = 2 Molar mass =

Chapter 10 The Mole. Chemical Measurements Atomic Mass Units (amu) – The mass of 1 atom – 1 oxygen atom has a mass of 16 amu Formula Mass (amu or fu)

More Stoichiometry Problems involving Volume or Particles or Energy Chapter 9 Section 1, pages 308 – 311.

Section 7.3 – Using Chemical Formulas

Chemistry Warm Up: Mole / Mass / Particles 1.What is the mass of one mole of water? 2.If one milliliter of water has a mass of 1.00grams, how many moles.

Gas Stoichiometry!. equal volumes of gases at the same temperature & pressure contain equal numbers of particles equal volumes of gases at the same temperature.

Gas Stoichiometry LAST PHASE OF STOICHIOMETRY, WOOHOO!!!!!

Molar Mass of ionic compounds. Molar Mass Molar mass- same as atomic mass but for a compound rather than an atom. To determine the molar mass of any compound.

Mass % and % Composition Mass % = grams of element grams of compound X 100 % 8.20 g of Mg combines with 5.40 g of O to form a compound. What is the mass.

Take your periodic table out. What is atomic mass of Carbon Point where you can find it in the periodic table! 6 is atomic number not atomic mass Atomic.

Stoichiometry Chemical Quantities Chapter 9. What is stoichiometry? stoichiometry- method of determining the amounts of reactants needed to create a certain.

Once you know the number of particles in a mole (Avogadro’s number = 6.02 x ) and you can find the molar mass of a substance using the periodic table,

Molar Mass, Moles, and Molecules 7.3 Using Chemical Formulas.

Unit: Chemical Quantities

UNIT 6: CHEMICAL QUANTITIES Chapter 10: Mole and Volume Relationships.

Sections 10-1 & 10-2 Mole Conversions. 1 mole = 6.02x10 23 atoms, = molar mass (g) = 22.4 L molecules, of any gas Formula units at STP Mass – Mole Problem:

The Mole. mmm…donuts How many donuts are in the box? – Dozen – Twelve If I have 1 dozen donuts how do I convert that number (mathematically) to individual.

THE MOLE: Is the SI base unit use to measure the amount of a substance. Ex: 1 mol H 2 (g) or H 2 (g) 5 mol H 2 O(l) or 5 H 2 O (l) 3 mol NaCl(s) or 3.

Avogadro’s and the Mole. Moles a mole is the number of carbon atoms in exactly 12g of carbon. a mole is a unit of measurement, just like grams…

Miss Fogg Spring 2016  A particle can refer to an individual atom OR a type of molecule ◦ Jellybean ◦ Baseball ◦ Carbon atoms ◦ Hydrogen atoms ◦ Water.

Aim: How to do Mass to Mass Calculations. Mass to Mass Calculations.

Chapter 7 Lesson 2 Chemical Quantities. Mass-Mole Calculations What is the mass of 1.33 moles of titanium, Ti? What is the mass of 1.33 moles of titanium,

Take your periodic table out. What is atomic mass of Carbon Point where you can find it in the periodic table! 6 is atomic number not atomic mass Atomic.

Mole Bridge HW 5-3. HW 5-3 #1 1 mole 12 g 0.25 moles 0.50 moles 0.33 moles 0.75 moles 3.0 g4.0 g 6.0 g 9.0 g.

  A mole is a counting unit similar to a dozen. A dozen is associated with the number 12 while a mole is associated with the number 6.02 x  6.02.

Stoichiometry Review.

Aim: How can we convert moles?

Glencoe: Chapter 11 Sections 11.1 & 11.2

Unit 7: The Mole.

Molar Mass and Molar Volume

Gram to moles to moles to Grams pg 8

Converting between Moles, Mass and Number of Particles Number of Particles to Mass Chemistry 11 Ms. McGrath.

Ideal Gas Law PV=nRT.

Dimensional Analysis Conversion factors Units Cancel to solve.

Ch. 3 & 7 – The Mole II. Molarity (p ) C. Johannesson.

LECTURE 4.4 – MOLES TO GRAMS

Avogadro’s Law.

Unit 4 Stoichiometry Stoichiometry, mol-mol Stoich. , volume-volume

M = moles solute L vol solution M= 0.75 moles = 3 M 0.25 liters

Molar Conversions (p.80-85, )

REVIEW 12/11, MOLES For the combustion reaction

Stoichiometry II.

mole (symbolized mol) = 6.02 x particles

Gas Law Stoichiometry.

THANKSGIVING H.W. ANSWERS

6.3 2 Step Conversions Objective 1:f.

1/9/18 Opener How many moles are there if you have 3.08 x 1024 particles of Ag? Please get out your weekend homework assignment, periodic table, & a calculator.

The Mole Mole: convenient measure of chemical quantities.

10.2 Molar Relationships.

Moles practice Q’s Ch 10 Pearson.

Molecular Formula.

Presentation transcript:

Working With Moles

HW – Ques Pb(CH 3 ) O 2  2PbO + 8CO H 2 O a. How many moles of O 2 are needed to burn 4.6 moles of Pb(CH 3 ) 4 ?

HW – Ques Pb(CH 3 ) O 2  2PbO + 8CO H 2 O b. How many moles of CO 2 are produced by burning 5 moles of Pb(CH 3 ) 4 ?

HW – Ques Pb(CH 3 ) O 2  2PbO + 8CO H 2 O c. How many moles of H 2 O will be produced by reacting 7.5 moles of O 2 ?

1 mol = molar mass 1 mol = 22.4L 1 mol = 6.02 X Particles

Moles: Rules to Remember 1. To convert moles to grams: *multiply the moles given by the mass of 1 mole. How many grams are in 4.0 moles of CO 2 ? 4.0 mol X 44 grams mol = 176 grams

2. To convert grams to moles: *divide the grams given by the mass of 1 mole. How many moles are in 88g of CO 2 ? 88 g 44g/mol = 2.0 moles

3. To convert moles to # of particles: *multiply the moles given by 6.02 X10 23 How many molecules are in 3.0 moles of CO 2 ? 3.0 mol X 6.02 X molecules mol = 1.8 X 10 24

4. To convert # of particles to moles: *divide the number given by 6.02 X10 23 How many moles are in X CO 2 molecules? 6.02 X = 2 moles X 10 23

5. To convert grams to # of particles: *convert grams to moles to # of particles What is the total number of atoms in 48 grams of magnesium? 48 g 24g/mol = 2.0 moles 2.0 mol X 6.02 X molecules mol = 1.2 X 10 24

6. To convert # of particles to grams: *convert # of particles to moles to grams What is the mass in grams of 1.5 X molecules of CO 2 ? 6.02 X =.25 moles 1.5 X mol X 44 grams mol = 11 grams

7. To convert moles to volume: *multiply moles by 22.4L/mol How many liters are in 3.0 moles of CO 2 ? 3.0 mol X 22.4L/mol= 67.2 Liters

8. To convert volume to moles: *divide liters given by 22.4 L/mol How many moles are in 44.8 Liters of CO 2 ? 44.8L 22.4L/mol = 2.0 moles