The Mole and Chemical Composition

Slides:

Advertisements

Similar presentations

What is the molar mass of Calcium Chloride (CaCl2) (to the nearest tenth!)? 111.1g/mol.

Advertisements

Conversion factors. Moles to particles Particles are atoms, molecules or ions 1 mole = Avagadro’s number of particles 1 mole___ or x

Mass Relationships in Chemical Reactions Chapter 3.

 What is the percent composition of N and O in NO 2 ?

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.

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

7.3 Using Chemical Formulas  Review  Mole: SI unit for the amount of a substance (contains avogadro’s number of particles)  Avogadro’s Number:

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu How to Use This Presentation To View the presentation as a slideshow.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 7 USING CHEMICAL FORMULAS Section 3.

Chapter 7 Section 2 Relative Atomic Mass and Chemical Formulas

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Avogadro’s Number and the Mole The SI unit for amount is called the.

1 Chapter 10 Chemical Quantities 10.2 The Mole Copyright © 2008 by Pearson Education, Inc. Publishing as Benjamin Cummings.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Using Analytical Data The percentage composition is the percentage.

Chapter 7: Chemical Formulas and Chemical Compounds

Chapter 7 Chemical Quantities. The Mole (Friend or foe)  What is a mole? 1. SI base unit to measure the amount of a substance 2. The amount of a substance.

Chemical Quantities The Mole: A Measurement of Matter

The Mole: A Measurement of Matter

The Mole and Avogadro’s Number

Section 4: Moles of Compounds

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu How to Use This Presentation To View the presentation as a slideshow.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 7 Table of Contents Chapter 7 Section 3 Using Chemical Formulas.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Counting Things There are many different counting units: for example,

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)

Counting Atoms Chapter 9. MOLE?? Moles of Particles In one mole of a substance, there are 6 x particles.

Chapter 11 The Mole

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Avogadro’s Number and the Mole The SI unit for amount is called the.

DAILY QUESTION September 8, How did you study for Quiz 1? 2.How long did you study?

Monday, March 17 th : “A” Day Tuesday, March 18 th : “B” Day Agenda  Ch. 6 Tests  Begin Chapter 7: “The Mole and Chemical Composition”  In-Class.

10.1 THE MOLE Q4TP – CHEM MATT T.. THE MOLE: A MEASUREMENT OF MATTER What are three methods for measuring the amount of something? How is Avogadro’s number.

Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Table of Contents The Mole and Chemical Composition Section 1 Avogadro’s.

Chapter 12 Stoichiometry. Composition Stoichiometry – mass relationships of elements in compounds Reaction Stoichiometry – mass relationships between.

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,

RR: How many ways can you count to 100?. Do you know how to count? In chemistry, the unit that helps us count is the mole (mol). The mole represents

Section 3: Mass and the Mole Chapter 7: Chemical Composition.

Section 1: Measuring Matter Chapter 7: Chemical Composition.

Unit: Chemical Quantities

Moles and Avogadro’s Number Molar mass, Molecular weight.

ATOMIC AND MOLAR MASS. Atomic Mass 2  Considers mass numbers of all isotopes  Natural abundance  Weighted average.

Chemical Quantities: Introduction to the Mole Chapter 10.

RR: How many ways can you count to 100?. Do you know how to count? In chemistry, the unit that helps us count is the mole (mol). The mole represents

What is a mole?. A mole is a way of measuring. There are many kinds of measurements in the world. We all know that a dozen = 12 This can be a dozen of.

The Mole Chemistry – Chapter 11. Measuring Matter  What measurements do we use?  Pair  Dozen  Gross  Ream  Counting Particles  Atoms and molecules.

Avogadro’s Number and Molar Conversions Mole: the SI base unit used to measure the amount of a substance whose number of particles is the same as the number.

Chemical Formulas & Chemical Compounds Chapter 7.

Chapter 7 Sec. 1 Avagadro’s # and Molar Calc.

Formula Weights © 2012 Pearson Education, Inc..

Chemistry The Mole: MAC NOTES:

Glencoe: Chapter 11 Sections 11.1 & 11.2

Using Conversions.

Chapter 10 Chemical Quantities 10.1 The Mole: A Measurement of Matter

Chapter 8 The Mole.

Chemistry I Mole Review.

Vietnam Veteran's Memorial (1982)

Moles Foothill Chemistry.

Chapter 10 – Chemical Quantities

Practice: 2 step mole conversions

Molar Conversions.

Moles and Formula Mass.

Molar Conversions (p.80-85, )

Molar Conversions.

Chapter 11 Honors Chemistry Glencoe

The Mole Chapter 7-1.

Chapter 11 The Mole.

Chemical Composition.

Presentation transcript:

The Mole and Chemical Composition Chemistry 2 Chapter 7 The Mole and Chemical Composition

Chapter 7 Table of Contents The Mole and Chemical Composition Chapter 7 Table of Contents Section 1 Avogadro’s Number and Molar Conversions Section 2 Relative Atomic Mass and Chemical Formulas Section 3 Formulas and Percentage Composition Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.

Section 1 Avogadro’s Number and Molar Conversions Chapter 7 Objectives Identify the mole as the unit used to count particles, whether atoms, ions, or molecules. Use Avogadro’s number to convert between amount in moles and number of particles. Solve problems converting between mass, amount in moles, and number of particles using Avogadro’s number and molar mass. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.

Chapter 7 Number of particles Moles [mol] Mass [g] Section 1 Avogadro’s Number and Molar Conversions Chapter 7 Moles [mol] Mass [g] Number of particles Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.

Avogadro’s Number and the Mole Section 1 Avogadro’s Number and Molar Conversions Chapter 7 Avogadro’s Number and the Mole A mole is the number of atoms in exactly 12 grams of carbon-12. The number of particles in a mole is called Avogadro’s Number. Avogadro’s number is 6.02214199 × 1023 units/mole. Molar mass is the mass in gram of one mole of a substance. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.

Converting Between Mass, Amount, and Number of Particles Section 1 Avogadro’s Number and Molar Conversions Chapter 7 Converting Between Mass, Amount, and Number of Particles Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.

Converting Moles to Number of Particles Section 1 Avogadro’s Number and Molar Conversions Chapter 7 Converting Moles to Number of Particles Example Problems 1. Find the number of molecules in 4.3 mol of tungsten. 2. How many moles equivalent to 7.95 x 10^24 copper(II) chloride. Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.

Chapter 7 Solve the following problems Section 1 Avogadro’s Number and Molar Conversions Chapter 7 Solve the following problems 1. How many particles are present in each of the following? a. 2.45 x 10^-6 mol of nickel(II)selenide. b. 0.923 mol selenium tetrabromide. 2. How many moles equivalent to each of the following? a. 6.9 Chapter menu Resources Copyright © by Holt, Rinehart and Winston. All rights reserved.