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My new book on GOLF will give the reader valuable playing tips and insider information I've gained through my years of lessons, struggles and experiments. Here are just a few of the chapter titles: My new book on GOLF will give the reader valuable playing tips and insider information I've gained through my years of lessons, struggles and experiments. Here are just a few of the chapter titles: Chapter 2 - How to Hit a Nike from the Rough, when you Hit a Titleist from the Tee. Chapter 18 - When to Regrip Your Ball Retriever.

Stoichiometry: Introduction At the conclusion of our time together, you should be able to: 1.Explain what stoichiometry is 2.Define what a mole is 3.Describe how the mole was discovered 4.Convert a mole of a chemical into its molar mass

STOICHIOMETRYSTOICHIOMETRY - the study of the quantitative aspects of chemical reactions.

STOICHIOMETRYSTOICHIOMETRY 1. Composition Stoichiometry 2. Reaction Stoichiometry 3. Molar Ratio

The Mole is the Quantity We Use in Stoichiometry 6.02 X 10 23

The Mole A counting unit Similar to a dozen, except instead of 12, it’s 602 billion trillion 602,000,000,000,000,000,000, X (in scientific notation) Amedeo Avogadro (1776 – 1856) This number is named in honor of Amedeo Avogadro (1776 – 1856), who studied quantities of gases and discovered that no matter what the gas was, there were the same number of molecules present

Just How Big is a Mole? Enough soft drink cans to cover the surface of the earth to a depth of over 200 miles. If you had Avogadro's number of unpopped popcorn kernels, and spread them across the United States of America, the country would be covered in popcorn to a depth of over 9 miles. If we were able to count atoms at the rate of 10 million per second, it would take about 2 billion years to count the atoms in one mole.

Everybody Has Avogadro’s Number! But Where Did it Come From? It was NOT just picked! It was MEASURED. One of the better methods of measuring this number was the Millikan Oil Drop Experiment Since then we have found even better ways of measuring using x-ray technology

Here’s Another Way of Looking at the Mole… Suppose we invented a new collection unit called a toburen. One toburen contains 8 objects. 1. How many paper clips in 1 toburen? a) 1b) 4c) 8 2. How many oranges in 2.0 toburens? a) 4.0b) 8.0c) How many toburens contain 40 gummy bears? a) 5b) 10c) 20

H H Avogadro asked... Q: If ONE Hydrogen atom masses at amu’s, how many Hydrogen atoms would it take to mass at grams ?

Answer: x  that many 602,300,000,000,000,000,000,000

The Mole is just Another Counting Unit 1 dozen cookies = 12 cookies 1 mole of cookies = 6.02 X cookies 1 dozen cars = 12 cars 1 mole of cars = 6.02 X cars 1 dozen Al atoms = 12 Al atoms 1 mole of Al atoms = 6.02 X atoms Note that the mole NUMBER is always the same, but the mole MASS is very different! Mole is abbreviated mol (gee, that’s a lot quicker to write, huh?)

Septic Tank Humor

A Mole of Particles Contains 6.02 x Particles = 6.02 x C atoms = 6.02 x H 2 O molecules = 6.02 x NaCl “formula units” 6.02 x Na + ions and 6.02 x Cl – ions 1 mole C 1 mole H 2 O 1 mole NaCl

Red-Neck Innovations:

Na Q: If ONE Sodium atom masses at amu, how many Sodium atoms would it take to mass at grams ?

What does one Mole of Lithium atoms mass at? What does one Mole of Carbon atoms mass at? What does one Mole of Water molecules mass at? What does one Mole of O 2 molecules mass at?

Molar Mass The Mass of 1 mole (in grams) Equal to the numerical value of the average atomic mass (use your periodic table, round to 2 places) 1 mole of C atoms= g 1 mole of Mg atoms = g 1 mole of Cu atoms = g

Other Names Related to Molar Mass Molecular Mass: If you have a single molecule, mass is measured in amu’s instead of grams. The molecular mass is the same numerical value as 1 mole of molecules, only the units are different - grams and not amu’s. (This is the beauty of Avogadro’s Number!) Formula Mass: Same goes for ionic compounds. But again, the numerical value is the same, only the units are different.

Molar Mass of Molecules and Compounds Mass in grams of 1 mole is equal numerically to the sum of the atomic masses 1 mole of CaCl 2 = 1 mole Ca x g/mol + 2 moles Cl x g/mol = g/mol CaCl 2 1 mole of N 2 O 4 = g/mol N 2 O 4

I wonder if he ducked fast enough??

Stoichiometry: Introduction Let’s see if you can: 1.Explain what stoichiometry is 2.Define what a mole is 3.Describe how the mole was discovered 4.Convert a mole of a chemical into its molar mass

What Is The Difference Between a Harley And a Hoover? The Location Of The Dirt Bag.

STOICHIOMETRYSTOICHIOMETRY - the study of the quantitative aspects of chemical reactions.

The Mole is the Quantity We Use in Stoichiometry 6.02 X 10 23

The Mole A counting unit Similar to a dozen, except instead of 12, it’s 602 billion trillion 602,000,000,000,000,000,000, X (in scientific notation) Amedeo Avogadro (1776 – 1856) This number is named in honor of Amedeo Avogadro (1776 – 1856), who studied quantities of gases and discovered that no matter what the gas was, there were the same number of molecules present

Learning Check! Find the mole (molar) mass (round to the hundreths place) A.1 mole of Br atoms B.1 mole of Sn atoms =79.90 g/mole = g/mole

Learning Check! A. Molar Mass of K 2 O = ? g/mol g/mol B. Molar Mass of antacid Al(OH) 3 = ? g/mol g/mol

The End!!