MOLE JOKES Why is Avogadro so rich? A: He's a multi-mole-ionare!

Slides:

Advertisements

Similar presentations

Moles, volume and density

Advertisements

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

The Mole–Mass Relationship How do you convert the mass of a substance to the number of moles of the substance? 10.2.

Mole  measurement of the number of particles in a sample  1 mol He (g) = 6.02 x atoms  1 mol CO 2(g) = 6.02 x molecules.

Mole Calculations Lesson 3

Chemical Quantities.  Calculate the mass of compounds.  Calculate the molar volumes of gases.  Solve problems requiring conversions between mass, and.

Mole-Mass and Mole-Volume Relationships

 What substitution can be made in the ideal gas law?  Rearrange the ideal gas law to solve for molar mass  Rearrange the ideal gas law to solve for.

Ideal gases and molar volume

Unit 5: The Mole and Stoichiometry

MOLAR VOLUME. molar volume What is the volume of a gas at STP, if it contains 10.4 moles? What is the volume of carbon dioxide gas (STP) if the.

UNIT V The Mole Concept. V.1 AVOGADRO’S HYPOTHESIS Avogadro’s hypothesis : Equal volumes of different gases contain the same number of particles (at the.

THE MOLE. Atomic and molecular mass Masses of atoms, molecules, and formula units are given in amu (atomic mass units). Example: Sodium chloride: (22.99.

7.2 More Mole Conversions!!!. - Molecular Oxygen = O 2 - Atomic Oxygen = O from the periodic table 7 elements that exist as diatomic molecules (MEMORIZE)

3.4Molar Volume Molar Volume The Molar Volume of Gases Multi-Step Conversions Involving the Volume of a Substance Molar Volume and Density.

1. 2 Chemical Quantities or 3 How you measure how much? How you measure how much? n You can measure mass, n or volume, n or you can count pieces. n We.

Ideal gases and molar volume

Unit 5 Review The Mole. 1. What is the mass of 1 mole of iron atoms? A amu B L C x D g.

Unit 6 Review The Mole.

UNIT 6: CHEMICAL QUANTITIES Chapter 10: Mole and Volume Relationships.

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…

Miss Fogg Spring 2016  A particle can refer to an individual atom OR a type of molecule ◦ Jellybean ◦ Baseball ◦ Carbon atoms ◦ Hydrogen atoms ◦ Water.

Chapter 7 Moles. What is a Representative Particle The smallest unit into which a substance can be broken down without changing the composition of the.

Chapter 7 Lesson 2 Chemical Quantities. Mass-Mole Calculations What is the mass of 1.33 moles of titanium, Ti? What is the mass of 1.33 moles of titanium,

10.2 Mole-Mass and Mole- Volume Relationships 1 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. Chapter 10 Chemical Quantities.

Chemical Quantities Chapter 10. The Mole  a mole is an amount of matter  mass is also an amount of matter, however the mole is much more useful to chemists,

What is a mole? A mole is a number. It is x This number is also called Avogadro’s number. How many atoms in 1 mole of copper atoms?

4.3 The Mole and Volume.

Stoichiometry Review.

Molar Mass (M) Topic 1.2.

Chapter 19 Avogadro’s Principle.

Chemical Sentences: Equations

Drill – 3/24/11 How much does a mole of boron weigh?

Molar Mass and Molar Volume

10.5 NOTES Avogadro Molar Volumes

Identify the Representative Particle

Bellwork What is the gram molar mass of methane? Methane’s formula is CH4.

Ch. 10 Chemical Quantities

Chapter 10.1 The Mole: A Measurement of Matter

CELEBRITY CHEMIST of THE DAY

Quantitative chemistry

Mole-Mass and Mole-Volume Relationships

II. Molar Conversions.

Chapter 10 – Chemical Quantities

3.3 The Molar Volume Pages

Avogadro’s Law.

Chapter 19 Avogadro’s Principle.

Chapter 19 Avogadro’s Principle.

Warm Up #3 Find the molar masses of the following: H2O MgSO4 Cu(NO3)2

9.4 – NOTES Avogadro and Density

Chapter 10 Chemical Quantities

Avogadro’s Law.

Moles and Gas Volume (3.4) Avogadro’s Hypothesis: equal volumes of different gases at the same temperature and pressure contain the same number of particles.

Moles, Volume and Density

The Heart of Chemistry.

The Mole Mole: convenient measure of chemical quantities.

Multiple Calculations

10.2 Molar Relationships.

Two Relationships 1 mole = molar mass in grams of any element or compound (use periodic table) 1 mole = x 1023 particles (molecules, atoms, formula.

C2H6 CH3 B. Empirical Formula

Chapter 10 – Chemical Quantities

Unit 5A Mole – Volume Relationships

The Mole Molar Conversions.

Chapter 10 Chemical Quantities

Chapter 10: Chemical Quantities Mole – Volume Relationships

Presentation transcript:

MOLE JOKES Why is Avogadro so rich? A: He's a multi-mole-ionare! Why was there only one Avogadro? A: When they made him, they broke e the Moled

MOLE CALCULATIONS MOLE TIME

(converting between grams and moles) Using Molar Mass: (converting between grams and moles) Remember has the units g/mol Molar mass can be used as a conversion factor to convert between mass and moles (g and mol) Steps: Calculate the molar mass of the compound Write it as a conversion factor (fraction)

Examples: What is the mass (in grams) of 3.25mol of carbon dioxide? Carbon dioxide = CO2 Molar mass: C: 1 x 12.0 = 12.0 O: 2 x 16.0 = 32.0 44.0g/mol

More Examples: 1. What is the mass in grams of 1.36x10-3 moles of SO3? 2. How many moles of N2 are there in 50.0g N2? 3. How many moles of CH3OH are there in 0.250g of CH3OH?

More Examples: 1. What is the mass in grams of 1.36x10-3 moles of SO3? 2. How many moles of N2 are there in 50.0g N2? 3. How many moles of CH3OH are there in 0.250g of CH3OH?

MOLE JOKES What kept Avogadro in bed for two months? A: Moleonucleosis What did Avogadro invent for his wife to use as a night cream? A: Oil of Molay

Using Avogadro’s Number: (converting between moles and particles) We know that there are… So, Avogadro’s number can be a conversion factor too! Note: particles can be molecules, formula units

Examples: 1. How many moles of carbon are there in 3.01x1024 atoms of carbon? 2. How many molecules of Ag2O are present in 3.0 moles of silver oxide?

Examples: 1. How many moles of carbon are there in 3.01x1024 atoms of carbon? 2. How many molecules of Ag2O are present in 3.0 moles of silver oxide?

MOLE JOKES Why did Avogadro stop going to a chiropractor on October 24th? A: He was only tense to the 23rd! What did the generous mole say when his friends crashed his party A: The mole the merrier! What happens when a mole bites a dog? A: He becomes Moleicious!

Molar Volume of a Gas: ●In other words, this means… ● All gases with the same pressure, temperature and number of particles occupy the same volume!

What is Molar Volume? • The volume occupied by a gas under… Standard Temperature and Pressure STP = 0oC and 101.3kPa (1 atm) This is another conversion factor! Only at STP! Only at STP

Examples: 1. What is the volume occupied by 0.350mol of SO2(g) at STP? 2. How many moles of gas are contained in a balloon with a volume of 10.0L at STP?

Examples: 1. What is the volume occupied by 0.350mol of SO2(g) at STP? 2. How many moles of gas are contained in a balloon with a volume of 10.0L at STP?

MOLE JOKES What is Avogadro's favorite day of the week? A: Moleday How would you describe a stinky chemist? A: Mole-odorous

Other Conversions: Atoms/molecules can also be a conversion factor Example: How many atoms are in 5 molecules of CuSO4· 5H2O? Note: these numbers are exact so sig figs aren’t limited

Volume of a Solid or Liquid: Other Conversions: Volume of a Solid or Liquid: Density (g/mL) is used as a conversion factor to convert between mass and volume for solids and liquids

Example: What is the volume occupied by 3.00 mol of ethanol, CH3CH2OH(l)? (d=0.790g/mL)

Combined Conversions:

Combined Examples: 1. How many hydrogen atoms are in 0.268 mol of H3PO4? 2. How many molecules are in 78.54g of nitrogen dioxide? 3. What is the mass of 4.83x1022 molecules of water?

Combined Examples: 1. How many hydrogen atoms are in 0.268 mol of H3PO4? 2. How many molecules are in 78.54g of nitrogen dioxide? 3. What is the mass of 4.83x1022 molecules of water? 1.44 g H2O