The Mole!.

Slides:

Advertisements

Similar presentations

The Mole Concept Goal: To develop the concept of the mole as a useful measurement and to apply this in calculations involving mass and volume.

Advertisements

What is the Mole? Molar Mass

IIIIIIIV Topic 6 The Mole I. Molar Conversions A. What is the Mole? n A counting number (like a dozen) n Avogadro’s number (N A ) n 1 mol = 6.02  10.

Chapter 8: Chemical composition

IIIIIIIV The Mole I. Molar Conversions A. What is the Mole? n A counting unit n Similar to a dozen, except instead of 12, it’s 602 billion trillion 602,000,000,000,000,000,000,000.

CHAPTER 7: The Mole.

NOTES: – Chemical Quantities (The Mole / Molar Mass)

The MOLE CH 11.

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.

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.

Chapter 10 - The Mole & Avogadro’s Number

Counting Large Quantities Many chemical calculations require counting atoms and molecules Many chemical calculations require counting atoms and molecules.

The Mole and Avogadro’s Number

Section 4: Moles of Compounds

IIIIIIIV Ch. & 7 – The Mole I. Molar Conversions.

IIIIIIIV Unit 6 - The Mole I. Molar Conversions A. What is the Mole? n A counting number (like a dozen) n Avogadro’s number (N A ) n 1 mol = 6.02  10.

What is... the number of carbon atoms in 12 grams of carbon? the number of oxygen atoms in 16 grams of oxygen? the number of H 2 O molecules in 18grams.

The activity series (P. 295) This lists elements according to their activity (their ability to react with other elements to form compounds) Elements at.

Chemical Quantities Avogadro’s Number.

IIIIIIIV The Mole I. Molar Conversions A. What is the Mole? n A counting unit n Similar to a dozen, except instead of 12, it’s 602 billion trillion 602,000,000,000,000,000,000,000.

MOLES Chapter 10.

Ch. 3 & 7 – The Mole Molar Conversions C. Johannesson.

A Mole is Many Things. How do you measure matter? Measuring by mass…. Potatoes are measured by the pound. Potatoes are measured by the pound. Gold is.

 “Mole” derives from Latin meaning “pile” or “heap”

The Mole A. What is the Mole? ► A counting number (like a dozen) ► Avogadro’s number (N A ) ► 1 mol = 6.02  items A large amount!!!!

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.

Ways We Measure You can measure mass, or volume, or you can count pieces. We measure mass in grams. We measure volume in liters. We count pieces in MOLES.

IIIIIIIV Molar Conversions & Calculations CH. 11 – THE MOLE C. JOHANNESSON.

Chapter 10 The Mole Measuring Matter Dozen eggs Pair of gloves.

1 Chapter 10 Chemical Quantities Yes, you will need a calculator for this chapter!

The Mole What is a Mole?. The mole is a word that means a number, just like…  1 pair = 2 objects  1 dozen = 12 objects  1 score = 20 objects  1 gross.

1 dozen =12 1 gross =144 1 ream =500 1 mole = 6.02 x (Avogadro’s Number) A mole is a Very large Number.

 One example is the word “gross”. If you have a gross of something, you have 12 dozen or 144 items.  Can you think of any other words that are used.

The Mole. What is a mole? A conversion factor we use in chemistry to make it easier to talk about a very large amount of particles of elements or compounds.

The Math of Chemistry The Mole And Chemistry Math.

The Mole 7.1 & Chemical Measurement: 2 1.Counting units: pair = 2 12 dozen = score = gross = ream = 500 ? mole = ? 2. Counting.

Lesson Objective I will be able to explain what a “mole” in chemistry means!

Scientific Notation and moles  atoms

Quantitative Composition Chapter 7

The Mole Chapter 7.

Glencoe: Chapter 11 Sections 11.1 & 11.2

The Mole & Avogadro’s Number Notes

Atomic Mass How can atomic mass be found on the periodic table?

The Mole Avogadro’s number.

Chapter 8: Chemical composition

The Mole Chapter 10.1.

10.1 Chemical Measurement.

The Mole Unit 3.

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

The Mole Part I: Mole Conversions

Molar Conversions (p.80-85, )

The Mole and Molar Mass.

Molar Conversions (p.80-85, )

Ch. 8 – The Mole Molar Conversions.

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

The Mole Concept.

Jonathan Seibert PNHS - Chemistry

Chemical Quantities.

Ch. 10 – The Mole Molar Conversions.

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

The Mole Molar Conversions.

1 step: Mol to mass conversions

Representative Particles & parts to Mole Conversions

Chemical Composition.

Ch. 10 – The Mole Molar Conversions.

What is the Mole? Molar Mass

Presentation transcript:

The Mole!

What is…. A pair? A ream? A couple? A gross? A dozen?

How do chemists count things? In moles.

Origin: 1900- 1905 German Mol, short for Molekül (molecule)

What is a mole? 6.02x1023 of something

602,000,000,000,000,000,000,000

It is estimated there is about 1 mole of grains of sand on earth. 1 mole of marshmallows would be enough marshmallows to make a 19 km (12 mi) thick layer of marshmallows covering the entire face of the Earth. 1 mole of popcorn kernels could be spread uniformly over the USA if the thickness of the layer was about 14 km (9 mi). 1 mole of donut holes would cover the earth and be 8 km (5 mi) deep. 1 mole of blood cells would be more than the total number of blood cells found in every human on earth. 1 mole of sheets of paper could form a million stacks from the surface of the earth, all that would pass the sun. 1 mole of pennies could be distributed to all the currently- living people of the world so that they could spend a million dollars per hour every hour (day and night) for the rest of their lives.

Why do chemists use the mole to count? Atoms and molecules are ridiculously small.

What is the name of the number 6.02x1023? Avogadro’s Number

Why are moles bad at counting? Because they only know one number.

What is a formula unit? The smallest component of an IONIC compound. (Metal and a nonmetal) (May contain polyatomic ions) (Acids)

What is a molecule? The smallest component of a COVALENT compound (Only made up of nonmetals)

What is an atom? A single element. (From the Periodic Table)

How do we use Avogadro’s number? To convert from moles to particles Use the conversion that 1 mole = 6.02x1023 particles (atoms, molecules, formula units).

How do I do that? Use the conversion that 1 mole = 6.02x1023 particles (atoms, molecules, formula units).

3.4 moles of NaCl= ? formula units

8.765x1029 molecules = ? moles

6.5 moles of Aluminum= ? Atoms

5.7x1019 molecules Cl2 = ? moles

How do you find the mass of one mole? You use the molar mass.

What is molar mass? It is the mass of one mole of something.

How do you find molar mass? Use the mass on the periodic table. Add each element’s mass.

I thought the mass on the PT was in amu. The mass of one atom (p+ + no) is in amu. The mass in grams is the mass of one mole of the same element.

How many decimal places will molar mass always have?

How do I write molar mass? 1 mole = _________________g

Examples: Zinc (II) Chloride Bromine Aluminum Diphosphorus pentoxide Gallium acetate

How do I use molar mass in conversions? 1 mole = Molar mass g

How many moles are in 56.98g of AgI?

How many grams are in 75 moles of Copper (II) Sulfate?

How many moles are in 45.9g of sodium carbonate?

Can I use both conversions together? Yes! 1 mole = ____(Molar mass)____ g 1 mole = 6.02x1023

Percent Composition To find the Percent Composition you must know the Total Mass of the compound and the Individual Mass of each Element

Percent Composition Total Element Mass x100 Molar Mass

Find the percentage of hydrogen and oxygen in water.

Find the percentage of each element in aluminum carbonate.