We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
supports HTML5 video
Published byJulianna Walsh
Modified over 5 years ago
The Mole and Avogadro’s Number
Mole (n): the amount of substance6.02x1023 particles (atoms or molecules) of a substance The same number of particles as atoms in 12 grams of carbon-12
Review How many atoms are there in 1.2 moles of oxygen?Calculate the number of moles of nitrogen equal to 3.45x1015 atoms of nitrogen.
Counting Atoms CO CO2 Fe(NO3)3 C6H12O6 potassium carbonate
How many molecules in 5 moles of water?How many hydrogen atoms in 5 moles of water? How many atoms in 5 moles of water?
1. How many chloride ions are there in zinc chloride? 2. A sample of zinc chloride contains 3.1x1019 molecules. a. How many moles is this? b. How many zinc ions? c. How many chloride ions?
Masses of Compounds
Atomic mass (A): the mass of an atom of an element relative to (compared to) other elements (g/mol)
Ionic: formula unit Molecular (covalent): molecule
Formula mass: sum of the atomic masses of the atoms in the compound’s formula (IONIC) (g/mol)Molecular mass: sum of the atomic masses of all the atoms in one molecule (COVALENT) (g/mol)
Molar mass (M): the mass of one mole of any substance (g/mol)atoms, molecules, ions, etc.
Ionic Formula Mass Molar Mass Covalent Molecular Mass
Calculating Molar MassStop.
Calculate the mass of 1.98 moles of iron (II) nitrate.How many molecules are there in 1.00 grams of iron (II) nitrate? Calculate the mass of one molecule of iron (II) nitrate.
1 Chapter 6 Chemical Quantities. 2 How you measure how much? How you measure how much? n You can measure mass, n or volume, n or you can count pieces.
The Mole: A Measurement of Matter OBJECTIVES: Describe how Avogadro’s number is related to a mole of any substance.
Mass Relationships in Chemical Reactions Chapter 3.
Quantities in Chemistry The Relationship Between Mole and Molar Mass.
What is the percent composition of N and O in NO 2 ?
The Mole: A Shortcut for Chemists S-C-8-1_The Mole Presentation Source:
I can calculate the molar mass of a compound Sometimes the molar mass is called the formula mass!
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.
Honors Chemistry Section 7.3. A chemical formula indicates: ◦the elements present in a compound ◦the relative number of atoms or ions of each element.
Chemical Formulas and Compounds Using Chemical Formulas.
Chapter 2 Atoms, Molecules and Ions. Formula Weight & Molecular Weight The FORMULA WEIGHT of a compound equals the SUM of the atomic masses of the atoms.
X Chemistry Unit 8 The Mole Problem Solving involving Chemical Compounds.
Ch. 11 The Mole.
To Do… Lab tomorrow. Read Chapter 13. Lon-Capa (HW2 Type 2 due Wednesday, February 5 by 7 pm). 1.
The Mole AA. Review Must turn in your packet with notes stapled to it before you can take the test.
Unit 5: The Mole.
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.
Counting Atoms Chapter 9. MOLE?? Moles of Particles In one mole of a substance, there are 6 x particles.
© 2021 SlidePlayer.com Inc. All rights reserved.