How many seconds are in 2 years?

Slides:

Advertisements

Similar presentations

Chapter 6 Chemical Composition 2006, Prentice Hall.

Advertisements

NOTES: Molar Volume, Density; and the Mole “Road Map”; NOTES: 10.3 Percent Composition.

Chapter 10: Chemical Quantities

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.

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.

Molar Mass Sections 4-4 to 4-6. Carbon Atomic # is 6 Atomic mass is u Molar mass (mass per mole) is g/mole.

Chapter 7 – The Mole and Chemical Composition

1 Chapter 10 “Chemical Quantities” Pre-AP Chemistry Charles Page High School Stephen L. Cotton Yes, you will need a calculator for this chapter!

Formula Stoichiometry. What is stoichiometry? Deals with the specifics of QUANTITY in chemical formula or chemical reaction. Deals with the specifics.

MOLAR MASS What is molar mass? How do you calculate molar mass?

Chapter 7: Chemical Formulas and Chemical Compounds

Unit 6: Chemical Quantities

The Mole and Avogadro’s Number

AP Notes Chapter 7 Mole Representative Particles Molecular Mass (mm) - gam used for atoms - gmm used for molecules - gfm used for formula units MoleVolume.

Section 7.3 – Using Chemical Formulas

Chapter 7 Preview Lesson Starter Objectives Formula Masses Molar Masses Molar Mass as a Conversion Factor Percentage Composition Section 3 Using Chemical.

The Mole: A Measurement of Matter Describe how Avogadro’s number is related to a mole of any substance Solve problems involving mass in grams, amount in.

Moles of Compounds. A properly written compound shows the ratio of atoms in the compound. For example, sodium carbonate (Na 2 CO 3 ) shows that for every.

 The percent composition of fuel is 81.7% carbon and 18.3% hydrogen. What is the empirical formula of the fuel?  Start by assuming 100 g of the compound.

Moles of Compounds. A properly written compound shows the ratio of atoms in the compound. For example, sodium carbonate (Na 2 CO 3 ) shows that for every.

The chemical formula for water is H 2 O. How many atoms of hydrogen and oxygen are there in one water molecule? H2OH2O 2 hydrogen atoms 1 oxygen atom.

Hydrated Ionic Compounds

Aim: How to calculate Percent Composition  DO NOW: 1. What is the number of moles of potassium chloride present in 148 g? 2. What is the molar mass of.

Moles COUNTING BY WEIGHING. Moles (is abbreviated: mol)  It is an amount, defined as the number of carbon atoms in exactly 12 grams of carbon-12.  1.

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,

Stoichiometry is… Greek for “measuring elements” Defined as: calculations of the quantities in chemical reactions, based on a balanced equation. There.

CHEMISTRY CHAPTER 7 SECTIONS 3-4 SECTION 3. USING CHEMICAL FORMULAS Introduction A chemical formula indicates: the elements present in a compound the relative.

Unit 5A Chapter 10: Chemical Quantities Mole-Mass Relationships ABClark-Grubb.

The Mole Calculating -Molecular Weight -Formula Weight -Molar Mass.

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

Avogadro’s Number and Molar Conversions Mole: the SI base unit used to measure the amount of a substance whose number of particles is the same as the number.

OCTOBER 27, 2015 Objective: Demonstrate how the conservation of atoms in chemical reactions leads to the ability to calculate the mass of products and.

Using Chemical Formulas

MOLAR MASS CHAPTER 7-2.

Bell Ringer How many moles of Nitric acid are there in 250 g?

Aim # 4: How do we determine the molar mass of a compound?

The Mole and Avogadro’s Number

Unit: Chemical Quantities

Using Chemical Formulas

Ch 7.3 Using Chemical Formulas

Moles Videodisk Unit 4.

Moles Videodisk Unit 4.

Unit 3: Moles!!!.

Simplest Chemical formula for a compound

Mole Calculations 2.

Ch 7 The Mole and Chemical Composition

Moles Mass There is also a connection between 1 mole of a substance and mass of any element or compound. Use Molar Mass to convert between moles & mass.

Chapter 9 “Chemical Quantities”

4/5/16 Today I will explain the mole and use it in calculations

Molecular formulas.

Warm-Up- start a new sheet!

Hydrates Unit 6 Lesson 3.

Molar Conversions.

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

HYDRATES Unit 7 Lesson 3.

6.9 – NOTES Formula of a Hydrate

Molar Conversions.

Warm-Up Read this: A counting unit is a unit that we use to name specific quantities of items. For example, if you want to say you have 12 eggs, what.

Hydrates Unit 6 Lesson 3.

Add to U7-3 Warm-Ups Ca3(PO4)2 1 mol 3 mol Ca 2 mol P 8 mol O

Stoichiometry Chapter 11.

Presentation transcript:

How many seconds are in 2 years? Warm-up How many seconds are in 2 years? Today you will need a calculator, a periodic table, and your polyatomic ion sheet. *REMEMBER YOUR SIGNIFICANT FIGURES RULES!!!

Notes 5.1 Moles

Moles 6.022×1023 Particles 1mol = 22.4L @ STP 1mol = Molar Mass The mass of 1 mole of a substance in grams (also known as Gram Atomic Mass) Mass given on periodic table is in amu Because amu and grams are relative we can say the masses on the periodic table are in grams

Hydrates Ionic compound that has water incorporated into its crystal structure Written as MgCl2●6H2O Calculate the GAM for this hydrate Mg: 1 x 24.31 = 24.31 Cl: 2 x 35.45 = 70.90 H: 12 x 1.008 = 12.096 O: 6 x 16.00 = 96.00 203.306 g Anhydrous CoCl2 CoCl2●6H2O

Sample Problem To carry out a chemical reaction you need 3.20 moles of zinc nitrate (Zn(NO3)2). What is the mass of 3.20 moles of Zn(NO3)2?

What is the mass of 3.20 moles of Zn(NO3)2?

*REMEMBER TO USE CORRECT SIG FIGS!!! Sample Problem How many moles are in 17.7 g of KMnO4? How many formula units are in 17.7 g KMnO4? How many atoms of O are in 17.7 g KMnO4? *REMEMBER TO USE CORRECT SIG FIGS!!!

How many moles are in 17.7 g of KMnO4?

Sample Problem *REMEMBER TO USE CORRECT SIG FIGS!!! 4. How many moles are in 41.2 g of Mg3(PO4)2? 5. How many formula units are in 41.2 g Mg3(PO4)2? 6. How many atoms of P are in 41.2 g Mg3(PO4)2? *REMEMBER TO USE CORRECT SIG FIGS!!!

Hydrates Ionic compound that has water incorporated into its crystal structure Written as MgCl2●6H2O Calculate the GAM for this hydrate Mg: 1 x 24.31 = 24.31 Cl: 2 x 35.45 = 70.90 H: 12 x 1.008 = 12.096 O: 6 x 16.00 = 96.00 203.306 g Anhydrous CoCl2 CoCl2●6H2O