Chem Catalyst 1) How many grams does 3.24 mol of carbon weigh? 2) How many particles are in 3.24 mol of carbon dioxide?

Slides:

Advertisements

Similar presentations

GRAB A CALCULATOR AND GET OUT A PIECE OF PAPER FOR NOTES. Empirical Formulas.

Advertisements

Calculating Empirical and Molecular Formulas

Copyright©2000 by Houghton Mifflin Company. All rights reserved. 1 Chemical Stoichiometry Stoichiometry - The study of quantities of materials consumed.

Notes #18 Section Assessment The percent by mass of an element in a compound is the number of grams of the element divided by the mass in grams.

Determining Chemical Formulas Experimentally % composition, empirical and molecular formula.

Percent Composition and Empirical Formula

Molar Mass & Percent Composition

01/06/11. What is the Molar Mass of the following: Calcium Sodium Oxygen TURN AND TALK Chat with your neighbors about the following questions? What.

Percent Composition Percent Composition I think you already know how to do this? What did Bob score on his test? How do you figure it out? 87 /

Percent Composition What is percent composition? How do I relate percent composition to counting concepts? How do I calculate percent composition?

Percent Composition. What is Percent Composition?  The percent composition by mass of a compound represents the percent that each element in a compound.

Formula Mass and Composition of Compounds

Chapter 10: Chemical Quantities

The Mole: A measurement of Matter

Chem Catalyst Calculate the percent composition of ibuprofen (C13H18O2)

The Mole AA. Review Must turn in your packet with notes stapled to it before you can take the test.

PERCENT COMPOSITION AND CHEMICAL FORMULAS Section 10.3 Part #1.

Chemistry Dr. Davis. A. Percent Composition: the percentage by mass of each element in a compound 1. Looking at the formula for FeO, we might assume the.

Measurement of Matter: The Mole

Chem Catalyst If a class of 22 students has 15 girls and 7 boys, what percentage of the class is male? What percentage is female?

Chem Catalyst - What is the atomic mass of: - Cl? - Fe? - KCl? - H 2 O?

Molar Mass Practice Calculate the molar mass of the following: Hydrogen Fe Iron II sulfate.

7.1 and 7.2 Review Calculate the mass in grams of 3.42 x molecules of NaCl. Calculate the volume occupied by 100g of water vapor (H 2 O)

THE MOLE Chapter 10: Chemical Quantities Measuring Matter What is a mole? It is the SI unit that measures the amount of substance.

Section 10.3 Percent Composition and Chemical Formulas.

Molar Mass & Percent Composition. The mass of 1 mole of an element or compound – The mass in grams from the Periodic Table Unit = grams per mole (g/mol)

Percent Composition and Chemical Formulas

% Composition, Empirical Formulas, & Molecular Formulas.

#32 A compound is formed when 9.03 grams Mg combines with

Percent Composition. What is it? The percent composition by mass of a compound represents the percent that each element in a compound contributes to the.

Percent Composition. Percent Composition from the Chemical Formula % mass = mass of element in 1 mole of compound molar mass of compound Then multiply.

Percentage Composition

7.1 and 7.2 Review Calculate the mass in grams of 3.42 x molecules of NaCl. Calculate the volume occupied by 100g of water vapor (H 2 O)

PERCENT COMPOSITION X 100= % mass of element mass of element mass of compound.

Empirical & Molecular Formulas. Percent Composition Determine the elements present in a compound and their percent by mass. A 100g sample of a new compound.

Chapter 8 Percentage Composition. Water is made of hydrogen and oxygen. How many grams of each are in the sample of water below?

Calculating Empirical and Molecular Formulas. Calculating empirical formula A compound contains 79.80% carbon and 20.20% hydrogen. What is the empirical.

% Composition, Empirical Formulas, & Molecular Formulas Chapter 9 sections 3 & 4.

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.

Warm Up: Jan. 5 th –This is Ch. 7.4 notes –Give the oxidation numbers for the following atoms 1.NaPO 4 2.HClO 3 3.C 6 H 12 O 6.

Calculating Empirical Formulas

Percent Composition Determine the mass percentage of each element in the compound. Determine the mass percentage of each element in the compound. Mass.

Percent Composition: Is the percentage of the total mass due to each element within a compound.

UNIT 5B PERCENT COMPOSITION X 100= % mass of element mass of element mass of compound part whole X 100.

How do chemists determine the formula of compounds?

Percent Composition.

Percent Composition, Empirical and Molecular Formulas

PERCENT COMPOSITION CHAPTER 7-3.

Percent Composition Calculations

10.3 Percent Composition Def: Relative amounts of the different elements in a compound What percent of water is hydrogen? oxygen?

chapter 6 chemical composition

Calculating Empirical and Molecular Formulas

Calculations Based on Chemical Equations

Percent Composition.

% Formula Mass and % Composition

Percent Composition.

% Composition, Empirical Formulas, & Molecular Formulas

Calculations Based on Chemical Equations

% Composition, Empirical Formulas, & Molecular Formulas

Chapter 10: Chemical Quantities

Percentage Composition Chapter 8 Percentage Composition.

Empirical & Molecular Formulas

Percentage Composition

Warm Up #5 Find the percent composition of the following:

Created by: Miss K. Marshall

Percent Composition.

Empirical and Molecular Formulae

Notes Ch. 10.3a Calculating Percent Composition

III. Percent Composition

Presentation transcript:

Chem Catalyst 1) How many grams does 3.24 mol of carbon weigh? 2) How many particles are in 3.24 mol of carbon dioxide?

Today’s Agenda: 1. Catalyst 2. Quiz 3. Notes- percent composition

Percent Composition/Mass Percent - The percent by mass of each element in a compound. (mass of part) ÷ (mass of whole) x100

Percent Composition When a 13.60g sample of magnesium oxide is decomposed, 5.40g of oxygen are obtained. What is the percent composition of this compound? 1) Find the mass of each element. 2) Find the mass of the compound. 3) Calculate.

Percent Composition When a 13.60g sample of magnesium oxide is decomposed, 5.40g of oxygen are obtained. What is the percent composition of this compound?

Percent Composition: From Formula 1) Find the total molar mass for each element. 2) Divide by molar mass of compound. 3) Multiply by 100.

Percent Composition from Formula Find the percent composition of propane (C 3 H 8 ).

Percent Composition from Formula: Your turn! Find the percent composition of iron (II) oxide (FeO). Find the percent composition of iron (III) oxide (Fe 2 O 3 ).