Presentation is loading. Please wait.

Presentation is loading. Please wait.

EXAM #1 RESULTS OWL: DEADLINE FOR COMBUSTION ANALYSIS MODULE EXTENDED; FIRST SET OF CHAPTER 4 HOMEWORK POSTED THIS AFTERNOON Announcements.

Published by Modified over 9 years ago

Similar presentations

Presentation on theme: "EXAM #1 RESULTS OWL: DEADLINE FOR COMBUSTION ANALYSIS MODULE EXTENDED; FIRST SET OF CHAPTER 4 HOMEWORK POSTED THIS AFTERNOON Announcements."— Presentation transcript:

1 EXAM #1 RESULTS OWL: DEADLINE FOR COMBUSTION ANALYSIS MODULE EXTENDED; FIRST SET OF CHAPTER 4 HOMEWORK POSTED THIS AFTERNOON Announcements

2 Hughie’s question- is applesauce a solid or a liquid? 1. Solid 2. Liquid 3. Neither- it’s a gas! Why ask a scientist when you can ask the lunch lady?

3 Chemical Analysis Used to determine  Composition of mixtures  Last week’s lab  % Sulfur in coal sample  Chemical Formulas

4 Chemical Analysis Coal deposits contain sulfur in differing amounts S + H 2  H 2 S 1.0g of coal was analyzed and 0.0130g H 2 S was produced. What was the %S in the coal? %S=grams of S/grams of coal x 100%

5 Combustion Analysis

6 Combustion Analysis of Hydrocarbons 3.47g of C x H y F z  What are x, y, and z? 7.51g CO 2 and 3.08g H 2 O produced

7 What was the empirical formula? 1. CH 6 F 3 2. C 3 H 6 F 3. CH 3 F 4. C 6 H 3 F

8 Solution Concentration Solution  Solute  Solvent Concentration  Qualitative  Dilute  Concentrated  Quantitative  Molarity=# moles of solute per 1L of solution

9 Solution Concentration Examples 1. How many grams are in 500mL of a 1.50M solution of NaCl? 2. How many moles are in 27mL of a 1.25M solution of NaOH? 3. How would you make 250mL of 1.00M NH 3 from 15M NH 3 ?

Download ppt "EXAM #1 RESULTS OWL: DEADLINE FOR COMBUSTION ANALYSIS MODULE EXTENDED; FIRST SET OF CHAPTER 4 HOMEWORK POSTED THIS AFTERNOON Announcements."

Similar presentations

Chemical Stoichiometry

Chemical Stoichiometry
Solution A homogeneous mixture of two or more substances.

Solution A homogeneous mixture of two or more substances.
Chapter 3 Calculations with Equations & Concentrations.

Chapter 3 Calculations with Equations & Concentrations.
Read Section 5.5 before viewing the slide show.. Unit 20 Solution Terminology (5.5) Definition of Solution Terms Associated with Solutions Concentrations.

Read Section 5.5 before viewing the slide show.. Unit 20 Solution Terminology (5.5) Definition of Solution Terms Associated with Solutions Concentrations.
Solution Concentration

Solution Concentration
1 Chapter 10 Acids and Bases 10.10Dilutions. 2 Dilution Diluting a solution Is the addition of water. Decreases concentration. ConcentratedDilutedSolution.

1 Chapter 10 Acids and Bases 10.10Dilutions. 2 Dilution Diluting a solution Is the addition of water. Decreases concentration. ConcentratedDilutedSolution.
Solutions Chapter 12 Modern Chemistry

Solutions Chapter 12 Modern Chemistry
Chapter 4B Solutions.

Chapter 4B Solutions.
Dilutions and Percent Solutions

Dilutions and Percent Solutions
Solutions. A. Dilute vs. Concentrated 1. Dilute – small amount of solute 2. Concentrated – large amount of solute *Very qualitative… B. Molarity (M) 1.

Solutions. A. Dilute vs. Concentrated 1. Dilute – small amount of solute 2. Concentrated – large amount of solute *Very qualitative… B. Molarity (M) 1.
Examples-Molarity and Dilutions. Example What is the molarity of a solution that contains 4.5 moles of sucrose in 0.750 L of water?

Examples-Molarity and Dilutions. Example What is the molarity of a solution that contains 4.5 moles of sucrose in L of water?
Molarity. Molarity Molarity (M) or molar concentration is a measure of the concentration of a solute in a solution. Unit for molar concentration is mol/L.

Molarity. Molarity Molarity (M) or molar concentration is a measure of the concentration of a solute in a solution. Unit for molar concentration is mol/L.
Molarity Revised 9/07/2006. Molarity the number of moles of solute dissolved in one liter of solution. The units, therefore are moles per liter, specifically.

Molarity Revised 9/07/2006. Molarity the number of moles of solute dissolved in one liter of solution. The units, therefore are moles per liter, specifically.
Solution Concentration

Solution Concentration
Molarity by Dilution Diluting Acids How to Calculate Acids in concentrated form are diluted to the desired concentration using water. Moles of acid before.

Molarity by Dilution Diluting Acids How to Calculate Acids in concentrated form are diluted to the desired concentration using water. Moles of acid before.
Molarity Objective: Students will understand a. solution terminology b. The factors that affect solubility c. Calculate the molarity of solutions.

Molarity Objective: Students will understand a. solution terminology b. The factors that affect solubility c. Calculate the molarity of solutions.
The Mole Chapter 7 Chemical Quantities Determine the percent composition of Fe(OH) 2 Fe – 1 x 55.8 = 55.8 O – 2 x 16 = 32 H – 2 x 1 = 2 Molar mass =

The Mole Chapter 7 Chemical Quantities Determine the percent composition of Fe(OH) 2 Fe – 1 x 55.8 = 55.8 O – 2 x 16 = 32 H – 2 x 1 = 2 Molar mass =
Notes 15.2 Describing Solution Composition. Mass Percent Mass percent= mass of solute X 100 mass of solution = grams of solute X 100 grams of solute +

Notes 15.2 Describing Solution Composition. Mass Percent Mass percent= mass of solute X 100 mass of solution = grams of solute X 100 grams of solute +
a measure of the amount of solute that is dissolved in a given quantity of solvent unit of measurement is Molarity (M) which is moles/liter can be dilute.

a measure of the amount of solute that is dissolved in a given quantity of solvent unit of measurement is Molarity (M) which is moles/liter can be dilute.
4.4 Solution Concentration and Stoichiometry. Solution Key Terms What type of mixture is also considered a solution? Give an example. – A homogeneous.

4.4 Solution Concentration and Stoichiometry. Solution Key Terms What type of mixture is also considered a solution? Give an example. – A homogeneous.

Similar presentations

Ads by Google