To Do… OWL: due Wednesday (2/21) and Friday (2/23).

Slides:

Advertisements

Similar presentations

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

Advertisements

Molarity and Dilutions

Molarity and Molality.

Topic: Dilution Do Now:

Examples-Molarity and Dilutions. Example What is the molarity of a solution that contains 4.5 moles of sucrose in L of water?

Solutions Calculations. Questions 1.What mass of NaOH is needed to make 350 mL of 0.45 mol/L NaOH solution? 2.What is the molarity if 25 g of KClO 3 is.

TOPIC: Concentration and Dilution Do Now:. Parts of a Solution SoluteSolute = dissolved substance SolventSolvent = dispersing medium.

Section 3: Dilutions Dilutions Calculations. DDilutions llowers concentration, or molarity but… ttotal moles of solute does not change A. Dilutions.

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.

Thursday, March 6, 2008 Discussion of Molarity Lab Results Introduce Section 15.2b -- Dilutions Homework: Pg. 555, #31a-d, 32, 33, 34.

Molar Concentration. Measuring Concentration Molarity (M): the number of moles of solute in 1 liter solution. Example: 0.5 moles of NaCl dissolved in.

Concentration Concentration is the amount of solute dissolved in an amount of solution. Molar concentration is called Molarity, or M. M = moles.

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 +

Molarity and Dilution Chapter 12 Solutions Copyright © 2008 by Pearson Education, Inc. Publishing as Benjamin Cummings.

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.

Concentration Units: Terms like “dilute” and “concentrated” are not specific. Percent by Mass: Mass % = mass of solute x 100 Total mass of solution Recall:

Percent by mass, mole fraction, molarity, and molality

Chapter 20 Concentration. Molarity (M) Moles of solute per liter of solution. Molarity = moles of solute liters of solution.

Molarity  Unit of Concentration  There are many units of concentration  Molarity is most useful to the chemist M = moles of solute Liters of solution.

Solution Composition: 15.2 Homework: Page 555, #12a-c, 13ab, 18, 19, 20, 21a-d Tuesday, March 4, Turn in Lab 2.Vocabulary Words (Quiz Friday) 3.Section.

Solution Concentration. Concentration Describes the amount of solute dissolved in a specific amount of solvent.

Making Dilutions. Diluting a solution reduces the number of moles of solute per unit volume, but the total number of moles does not change. Higher molarity.

Dissolving of an Ionic Compound 1. Figure 7-2 p124.

Molarity • Molarity is a measure of molar concentration

Basic Chemistry Copyright © 2011 Pearson Education, Inc Molarity and Dilution Chapter 12 Solutions.

Molarity What is it and how is it calculated?. Molarity What is it? A measurement of a solution’s concentration How much solute is dissolved in a solvent.

Stock Solutions Different experiments require solutions of various different molarities. It would not be practical to have multiple bottles of each type.

Solutions and Concentrations Notes Page 5. SOLUTIONS A homogenous mixture of two or more substances.

Dilutions. A dilution occurs when water is added to a concentrated solution. Because only water is being added, the moles of solute is unchanged. When.

Molarity moles of solute Liters of solution Unit for molarity mole mol LiterL = M.

CONCENTRATION AND DILUTIONS. Concentrations of Solutions ■a dilute solution contains only a small amount of solute ■concentrated solution contains a large.

Solution problems. If we dissolve 87 grams of silver into 200 grams of gold, the resulting alloy is what percent silver?

Molarity Chapter 15.2.

Molarity Thornburg 2014.

Solutions & Chemical Equilibrium

Unit 13: Solutions & Equilibrium

Dilution Chapter 15 Ch 15 ppt 3 - Dilution.ppt

DILUTING A STOCK SOLN To make a soln less concentrated: add solvent

Solutions Review What is the molarity of a solution made by dissolving 0.35 mol in 145 milliliters of solution?

Molarity (M): State the ratio between the number of moles of solute & the volume of solution (in liters). Molarity (M) =

DO NOW Pick up Notes. Get out Solubility handout and Concept Review handout.

Creating a Positive Learning Environment for Everyone

To Do… Electronic homework Exam 2: Thursday, March 15 OWL:

Various Types of Solutions

BELLWORK 4/5/2018.

Unit 13: Solutions & Equilibrium

Section 2: Concentration

ICE Charts With Acid Base Reactions.

Clicker #1 You add mL of water to mL of a 2.00 M sugar solution. How many of the following will change? I. total volume of the solution II. moles.

Molarity & Dilution.

Unit 13: Solutions & Equilibrium

To Do Finish reading Chapter 4. Text homework for Chapter 4.

Solutions Section 3: Dilutions Dilutions Calculations print 1-3,5-7.

Clicker #1 Which of the three solutions is the most concentrated?

ICE Charts With Acid Base Reactions.

Concentration of solutions

Unit 13: Solutions & Equilibrium

Clicker #1 Which of the three solutions is the most concentrated?

1. Calculate the moles of B (limiting reactant) consumed based on 10

Announcements Be respectful – no electronics please!

Clicker #1 Which of the three solutions is the most concentrated?

Please get a text book and read pages 450 through 454.

BELLWORK 4/6/2017.

Unit A: Chemistry Topic: Calculating Concentrations

Molarity Calculate the concentration of a solute in terms of grams per liter, molarity, and percent composition.

Clicker #1 You add mL of water to mL of a 2.00 M sugar solution. How many of the following will change? I. total volume of the solution II. moles.

Clicker #1 You add mL of water to mL of a 2.00 M sugar solution. How many of the following will change? I. total volume of the solution II. moles.

Molarity (M): State the ratio between the number of moles of solute & the volume of solution (in liters). Molarity (M) =

Presentation transcript:

To Do… OWL: due Wednesday (2/21) and Friday (2/23). Open now. Lab activity tomorrow Turn in Chapter 7 and 15 homework Friday in Discussion. Should have read Chapter 15 (1, 2, 4, 5) for today, Chapter 9 for Thursday.

Clicker Question Which solution is the most concentrated?

Solution Problem #1 You have 1.00 mol of sugar in 125.0 mL of solution. Calculate the concentration in units of molarity.

Solution Problem #2 You have a 2.50 M sugar solution. Calculate the number of moles of sugar in 300.0 mL of this solution.

Solution Problem #3 You have a 10.0 M sugar solution. What volume of this solution do you need to have 2.00 mol of sugar?

Clicker Question You add 250.0 mL of water to 250.0 mL of a 4.00 M sugar solution. What will happen to the concentration? A) increase B) decrease C) stay the same

p370

Solution Problem #4 You add 250.0 mL of water to 250.0 mL of a 4.00 M sugar solution. Calculate the concentration of the new solution in units of molarity. (Assume the volumes are additive.)

Solution Problem #5 You dissolve 100.0 g of NaOH in 150.0 mL of solution. Determine the concentration of the solution in terms of molarity.