Concentration of Solutions

Slides:

Advertisements

Similar presentations

Solution Concentration. Calculations of Solution Concentration Mole fraction Mole fraction – the ratio of moles of solute to total moles of solution.

Advertisements

Chemistry Joke Q: What is this a picture of? A: A Polar Bear! + +

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

Changes in Solubility I.Pressure A. Changes in pressure do not affect solubility of liquid or solid solutes in liquid solvents. 1. But, increases in pressure.

CONCENTRATION OF SOLUTIONS Day 4 CONCENTRATION  A measurement of the amount of solute in a given amount of solvent or solution (unit of measurement.

Molarity and Dilutions

Solution Concentration. Calculations of Solution Concentration: Mass Percent Mass percent Mass percent is the ratio of mass units of solute to mass units.

Molarity and Molality.

Topic: Dilution Do Now:

MOLARITY A measurement of the concentration of a solution Molarity (M) is equal to the moles of solute (n) per liter of solution M = n / V = mol / L Calculate.

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.

CONCENTRATION OF SOLUTIONS Day 4 CONCENTRATION  A measurement of the amount of solute in a given amount of solvent or solution (unit of measurement.

Unit 10B Review Reg Chem When a solution sits out over a long period of time and water evaporates the concentration of the solution __________.

Solution Concentration Section 14.2 Concentration - amount of solute dissolved in a specific amount of solvent concentrated - a lot of solute dilute.

Preparing a Molar Solution

Aim: How can we use moles to express the concentrations of solutions? Do Now: 1.Take out a calculator and reference tables. 2.How many moles are in L.

DETERMING CONCENTRATIONS OF SOLUTIONS. MOLAR Molar is mol solube/1 L solution Making molar solution 1)Add ½ of the total solvent 2)Add required amount.

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

Molarity, Dilution, and pH

Solutions Concentrations of Solutions. Solutions  Objectives  Given the mass of solute and volume of solvent, calculate the concentration of solution.

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:

Section 15.2 Describing Solution Composition 1. To understand mass percent and how to calculate it Objective.

Moles in Solution A solution consists of a solvent with a solute dissolved in it The concentration of a solutions tells us how much solute is present in.

MOLARITY A measurement of the concentration of a solution. Molarity (M) is equal to the moles of solute (n) per liter of solution M =__n__ = mol volL.

Ch Concentration of a Solution The concentration of a solution is a measure of the amount of solute in a given amount of solvent or solution. Chemists.

Preview Objectives Concentration Molarity Molality Chapter 12 Section 3 Concentration of Solutions.

Daily Inquiry: 1.Many solutions are described as concentrated or dilute. Distinguish between these two terms. 2.A solution is made by dissolving 4.75 g.

Solutions, Problems, Solutions, Problems. Does it ever end?

Daily Inquiry: 1.Many solutions are described as concentrated or dilute. Distinguish between these two terms. 2.A solution is made by dissolving 4.75 g.

Molarity • Molarity is a measure of molar concentration

Dilution Problems. 2-step Molarity Problems Study them because that’s the process we need to go through if we are making a solution from a solid solute.

1 Learning Check If we dissolve 40.55g of FeCl 3 in enough water to make 500. mL of the solution, what is the molarity of the solution? Convert all unit:

Concentration The concentration of a solution is a measure of the amount of solute in a given amount of solvent or solution. Concentration is a ratio:

Biotech Equations. Preparing Solutions What is a solution? – Mixture of two ore more substances Solutions have two parts – Solute – substance that is.

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

MOLARITY, MOLALITY, DILUTIONS & PERCENTS. Molarity mols M L Molarity involves a molar amount of solute, so if you are given something like grams, you.

Dilution Adding water to a solution. Dilution The number of moles of solute doesn’t change if you add more solvent! The # moles before = the # moles after.

A measurement of the concentration of a solution

Concentration of Solutions

S-C-9-3_Concentrations Presentation

Molarity Thornburg 2014.

Solution Concentration

Molar Concentration Concentration

Solutions & Chemical Equilibrium

Unit 13: Solutions & Equilibrium

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

Molarity and Dilutions

Section 3 Concentration of Solutions

BELLWORK 4/5/2018.

Unit 13: Solutions & Equilibrium

CONCENTRATION OF SOLUTIONS

Section 2: Concentration

Solution Concentration

A measurement of the concentration of a solution

Ch. 3 & 7 – The Mole II. Concentration (p )

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

Molarity (cont.).

Concentration of Solute

Starter Last lesson review: How do we calculate the mole? Q. 1.) How many moles are there in 20g of Carbon? 2.) What is the relative atomic mass of 0.5.

Which one of these is more concentrated?

BELLWORK 4/6/2017.

Solution Concentration

Molarity REview.

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

Concentration of Solutions :

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

Presentation transcript:

Concentration of Solutions

Concentration The concentration of a solution is a measure of the amount of solute in a given amount of solvent or solution. Dilute: a relatively small amount of a solute in a solvent. Concentrated: a relatively large amount of a solution in a solvent.

Molarity The number of moles of a solute in one liter of solution. For example: a 1 M solution of Sodium hydroxide contains one mole of NaOH for every 1 Liter of solution. The unit for molarity is M

Molarity We can express molarity using the following equation: Molarity (M) = amount of solute (mol) volume of solution (L)

Example You have 3.50 L of a solution that contains 1.54 mol of Sodium Chloride. What is the molarity of the solution? You have 6.2 L of a solution that contains 0.2 mol if Ca(OH)2. What is the molarity of the solution?

Rearranging the Molarity Equation

Steps: Determine which variables you know. Convert variables into the correct units. Determine which equation you are going to use OR plug in the information you know into the molarity equation. Write your answer and include units.

Example You have 0.8 L of 0.5 M solution of HCl. How many moles of HCl does this solution contain?

Example What volume is needed for a 3.00 M NaCl solution that contains 146.3 g of NaCl?