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.

Slides:

Advertisements

Similar presentations

The Mole IV. CONVERTING BETWEEN PARTICLES AND MASS.

Advertisements

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

The Mole. What is a mole? A mole is a QUANTITY of whatever you are measuring… 1 mole = 6.02 x of whatever you are measuring Just like 1 dozen =

Conversions involving molar mass and Avogadro’s number.

Chemistry 20 Mole Conversions. What is a Mole? A term of measurement A counting number – Similar to saying 1 dozen = 12 things Avogadro's Number (N.

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.

Conversion Factors. In chemistry, it is often useful to be able to convert from one unit of measure to another For example: mass of a substance converted.

Unit 5: The Mole and Stoichiometry

Chemical Quantities.  Chemistry is a quantitative science  There are three typical ways in which we measure the amount of something  By count  A dozen.

Performing Stoichiometry Calculations Notes and Practice for ALMOST every possible calculation.

Moles, Avogadro’s Number and Molar Mass

Mole Concept. Counting Units  A pair refers to how many shoes?  A dozen refers to how many doughnuts or eggs?  How many pencils are in a gross?  How.

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

1 The MOLE. 2 Atoms and molecules are very, very small, but we still need to “count” them.

The Mole Molar Mass 0 Also called atomic mass, formula mass, molecular mass 0 Unit = g/mol 0 Calculating Molar Mass 0 Use the average atomic mass from.

Chapter 7: Chemical Formulas and Chemical Compounds

Relating Mass to Numbers of Atoms The mole, Avogadro’s number, and molar mass provide the basis for relating masses in grams to moles.

The Mole: A Measurement of Matter

Factor Label Review & Mole Calculations. Factor Label Method 1.write down given value 2.write unit of given in denominator 3.write unit to find in numerator.

Chemistry Chapter 11 The Mole.

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.

MOLES Chapter 10.

The Mole Concept Avogadro’s Number = x

The Mole Standards 1 dozen = 1 gross = 1 ream = 1 mole = x There are exactly 12 grams of carbon-12 in one mole of carbon-12.

Measuring Matter Measure amounts of something with three different methods— by count, by mass, and by volume.

Molar Mass! Chapter Ten Chemistry Mrs. Luckett. Get Out Homework  Anticipation guides.

MOLES!! Chemical Quantities. Counting by weighing  When things are too small to count out individually, we can “count” them by weighing them. Must know.

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.

Chemistry Unit 6: Chemical Quantities Lecture 6.4

Chemical Quantities. Chapter Overview Measuring Matter Mass ________ Counting ________ Volume _____________ Length ________.

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

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

+ Tuesday, 10/14 Get out page 36 to turn in! Lab, page 37 with post-lab questions due Friday. PSAT & Movie tomorrow!!! Label “Mole Calculations” as page.

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 Point of Today 1. What is a “mole” 2. Conversions using moles.

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…

Do-now- work with partners  Let’s say your group has been put in charge of making breakfast for this class. You get to decide what everybody eats. Make.

THE MOLE Volume and Particles. Converting one unit to another Using Conversion Factors You can then say that there are 12 eggs dozen You know that there.

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.

Section 10.1: The Mole (A Measurement of Matter) What is a Mole? A mole is a specific amount of particles. Atoms are very, very, very small. The fact that.

WHAT IS A MOLE? SI unit for Amount of Substance A mole is a unit like “dozen” or “pair” or “gross”. It doesn’t represent a measured number, but a counted.

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

Mole Quantity Conversions. First, fold your paper in half like this. Not this.

  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.

Glencoe: Chapter 11 Sections 11.1 & 11.2

Unit 7: The Mole.

Measuring Quantities How many donuts will we get if we ask for a dozen? Twelve How about a baker’s dozen? Thirteen So, we know “dozen” and “baker’s dozen”

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

Science Starter (Week 9, Tuesday, 4/5/16)

The Mole and Single Step Mole Conversions

Avogadro’s Law.

Avogadro’s Number: 1 mole = 6.02 x 1023 particles

Measure amounts of something with three different methods—

Unit 2: Atomic Theory & Structure

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.

Created by C. Ippolito June 2007

Using Conversion Factors.

The Mole Chap. 11 No, not that mole!.

Multi-Step Mole Conversions

Presentation transcript:

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 donuts? – Multiply by 12 – That was hard to remember! Image taken from

The Mole We use a similar concept in chemistry because the number of atoms in molecules is so large. Remember there are 12 items in a dozen Well there are 6.02x10 23 items in a mole – This number is so large that if you had a mole of pennies you could give almost 900 BILLION dollars to every person on the planet.

More complicated than a dozen… We can use the number of something to determine moles We can also use the mass of something (using its molar mass) or the volume of a gas (22.4 L in 1 mole) So many conversions!! How can we remember all the relationships, and the conversions if remembering a dozen was hard…

ROLEY MOLEY…she likes to DANCE! A mole is an animal it has THREE FEET: GRAMS, PARTICLES AND LITERS When you go up, you divide! When you go down, you multiply! ROLEY MOLEY GRAMS (Molar Mass) PARTICLES (Avogadro’s Number) LITERS (22.4 Liters)