Entry Task: Feb 22 nd Friday Entry Task Question: Write the question down Calculate the % H 2 O in the compound NiCl 2 6 H 2 O. Provide answer TURN IN.

Slides:

Advertisements

Similar presentations

Chapter 11 Empirical and Molecular Formulas

Advertisements

Agenda: Feb 25 th Monday Turn in Entry task sheets (If you were gone Friday) Pick up/Fill out/Turn in “I can” Sign up for a clicker.

Section 10.1 Measuring Matter

Chapter 8 Chemical Composition Chemistry B2A. Atomic mass unit (amu) = × g Atomic Weight Atoms are so tiny. We use a new unit of mass:

Chapter 6 Chemical Composition. Element Song Memorize for Extra Credit– 3 points toward your worst test grade – You may video tape yourself singing it.

Section 3.2 Stoichiometry and Compound Formulas

The Mole and Molar Mass Moles are the currency of chemistry 1 mole = 6.02 x particles = Avogadro’s number Molar mass of an element = mass of one.

1 Empirical Formulas Honors Chemistry. 2 Formulas The empirical formula for C 3 H 15 N 3 is CH 5 N. The empirical formula for C 3 H 15 N 3 is CH 5 N.

Empirical and Molecular Formulas

CHEMISTRY Matter and Change

The Mole Chapter 11.

Chapter 7: Chemical Formulas and Chemical Compounds

Chapter 7 Chemical Quantities. The Mole (Friend or foe)  What is a mole? 1. SI base unit to measure the amount of a substance 2. The amount of a substance.

Determining Chemical Formulas

Mole Jeopardy Moles and Grams Avagadro!Percent Composition Empirical Formula Molecular Formula

The Mole: A Measurement of Matter

Percentage Percentage means ‘out of 100’

Percent Composition Like all percents: Part x 100 % whole Find the mass of each component, divide by the total mass.

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.

3.10 Determining a Chemical Formula from Experimental Data

WHAT IS A MOLE?. Moles: Measuring Matter A UNIT OF MEASURE!!! 1 mole = 6.02 x representative particles – atoms, molecules, formula units, ions –

Unit Empirical and Molecular Formulas. Empirical Formulas Consists of the symbols for the elements combined in a compound, with subscripts showing.

Empirical Formula vs. Molecular Formula Empirical formula: the formula for a compound with the smallest whole-number mole ratio of the elements Molecular.

The Formula for a Hydrate Objectives: 6.0 Solve stoichiometric problems involving relationships among the number of particles, moles, and masses of reactants.

12.1 Test Review. What is percent composition? the percent (by mass) of all the elements in a compound.

Chapter 7 Chemical Formulas and Chemical Compounds Preview Image Bank Common Monatomic Ions Writing the Formula of an Ionic Compound Polyatomic Ions Naming.

3.4 Empirical and Molecular Formulas. Empirical and Molecular Formulas How do we find a chemical formula for and unknown substance? Identify elements.

Topic 3 The Mathematics of Formulas and Equations

Entry Task: Feb 6 th - 7 th Block #2 Write the question down: Provide the percent composition of Gold III chloride You have 5 minutes!

10-3: Empirical and Molecular Formulas. Percentage Composition The mass of each element in a compound, compared to the mass of the entire compound (multiplied.

Section 12.2: Using Moles (part 3). Mass Percent Steps: 1) Calculate mass of each element 2) Calculate total mass 3) Divide mass of element/ mass of compound.

Chemical Composition … Moles Chemistry Mr. Lentz.

Formulas Ethane Formula C 2 H 6 Why don’t we simplify it? CH 3 StructureH | H ---- C ---- C ---- H | H.

RR: Write generic equations to convert: mass  moles, particles  moles, & mass  particles.

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

Calculating Empirical Formulas

Chapter Menu The Mole Section 10.1Section 10.1Measuring Matter Section 10.2Section 10.2 Mass and the Mole Section 10.3Section 10.3 Moles of Compounds.

% Composition, Empirical and Molecular Formulas notes.

The Mole Chemistry – Chapter 11. Measuring Matter  What measurements do we use?  Pair  Dozen  Gross  Ream  Counting Particles  Atoms and molecules.

1 Chapter 7 Chemistry Empirical Formulas/molecular formulas LOOK AT: Pages

Chapter Menu The Mole Section 10.1Section 10.1Measuring Matter Section 10.2Section 10.2 Mass and the Mole Section 10.3Section 10.3 Moles of Compounds.

Section 6.2 Molar Mass and Percent Composition 1.To understand the definition of molar mass 2.To learn to convert between moles and mass 3.To learn to.

Chapter 7 Sec. 1 Avagadro’s # and Molar Calc.

Percent Composition.

Chemistry The Mole: MAC NOTES:

Percentage Composition from Formulas

Chapter 8 The Mole.

Simplest Chemical formula for a compound

Empirical and Molecular Formulas

EMPIRICAL FORMULA The empirical formula represents the smallest ratio of atoms present in a compound. The molecular formula gives the total number of atoms.

Chemical Quantities.

Percent Composition and Chemical Formulas

Percent Composition, Empirical Formulas, and Molecular Formulas

Chapter 10 – Chemical Quantities

Section 3.2 Stoichiometry and Compound Formulas

Quick ‘cheat sheet’ If given A to find B

Percent Composition Empirical Formula Molecular Formula

Empirical and Molecular Formulas

Empirical and Molecular Formulas

Moles and Formula Mass.

Chapter 6 Chemical Composition.

Objectives To understand the definition of molar mass

mole (symbolized mol) = 6.02 x particles

Aim: How do chemists calculate the mass of one mole of a substance?

Empirical and Molecular Formulas

Created by C. Ippolito June 2007

Formulas/MOF Objectives

Chemistry – Apr 5, 2018 P3 Challenge –

The Mole and Mole Concepts

Molecular Formula.

Presentation transcript:

Entry Task: Feb 22 nd Friday Entry Task Question: Write the question down Calculate the % H 2 O in the compound NiCl 2 6 H 2 O. Provide answer TURN IN ENTRY TASK SHEET!!!

Agenda: Sign off Discuss Ch. 11 Review sheet I can…. (see calendar) STUDY for the Proof of Understanding

Describe how to use a mole in chemistry – Relate a mole to common counting units. – Convert moles to numbers of representative particles and particles to moles. I can…

Convert Particles  Moles  Grams – Relate the mass of an atom to the mass of a mole of atoms. – Calculate the number of moles in a given mass of an element and the mass of a given number of moles of an element. – Calculate the number of moles of an element when given the number of atoms of the element. – Calculate the number of atoms of an element when given the number of moles of the element. I can…

Provide the molar mass of a given substance – Recognize the mole relationships shown by chemical formula – Calculate the molar mass of a compound. – Calculate the number of moles of a compound from a given mass of a compound for a given number of moles of the compound. – Determine the number of atoms or ions in a mass of a compound. I can…

Provide the % composition of a substance – Explain what is meant by the percent composition of a compound. I can…

Determine the Empirical formula & Molecular formula with data collected in an experiment – Determine the empirical and molecular formula for a compound from mass percent and actual mass data. I can…

Determine the hydrate formula with data collected in an experiment – Determine the hydrate formula for a compound from mass percent and actual mass data. I can…