PDF-Concentration of Solutions and

Molarity The concentration of a solution is a measure of the amount of solute that is dissolved in a given quantity of solvent x2013 A dilute solution is one that contains a small amount of. Lab 11. Outline. Purpose. Qualitative Distinction. Spectrophotometry. Beer’s Law. Calibration Curve. Procedure. Points of Interest. Waste. Safety Concerns. Purpose. This experiment demonstrates the linear relationship between the absorbance and the concentration of a colored solution. . Investigation 1. Soft Drink Recipes. LEQ: What Happens to a soft-drink solution when you increase the amount of powder in a given amount of water?. Let’s Review. Mixtures and Solutions Review. 2 solutions. Solutions. A.  . solution.  . is a homogeneous mixture of two or more substance. A solution is generally composed of two substances. Solute: substance that is being dissolved and is in smaller quantity. Solution is a homogeneous mixture of two or more substances. . . Solute . is the dissolved substance. , whereas solvent . is a substance in which solutes dissolves to make the mixture. . There . are different types of solutions used in medical laboratory procedures. . Cation. -Exchange . Tasoula. . Kiliari. . and . Ioannis. . Pashalidis. Radioanalytical. Chemistry Group , Chemistry Department, University of Cyprus. Introduction. Analysis . of man-made . radionuclides. SOLUTIONS & CONCENTRATIONS. WHAT IS A SOLUTION ?. WHAT IS CONCENTRATION & HOW IS IT MEASURED ?. IS DISSOLVING A CHEMICAL OF A PHYSICAL PROCESS ?. IF SUGAR IS DISSOLVED IN WATER IS ITS CHEMICAL NATURE CHANGED ?. Lesson 6. Concentration. Concentration:. Is a measure of the amount of substance (solute….usually solid) that exists in a volume of solution (solvent).. Concentration. The amount of solute in a solution.. Solution is a homogeneous mixture of two or more substances. . . Solute . is the dissolved substance. , whereas solvent . is a substance in which solutes dissolves to make the mixture. . There . are different types of solutions used in medical laboratory procedures. . Concentration. The amount of a specific substance in a known volume of solution. Concentrated Solutions. The amount of substance dissolved in solution is very high . It is difficult to dissolve more substance into solution. Solutions and Concentration What is a solution? Homogeneous mixture of solute and solvent Solute: substance dissolved Often a solid Solvent: substance in which the solute is dissolved Usually a liquid There are H. +. and OH. - . ions in all solutions. In neutral solutions: [H. +. ] = [OH. -. ] = 1 x10. -7. M. If [H. +. ] >1 x10. -7. M, solution is acidic. 3.3: Molarity. Describe the fundamental properties of solutions. Calculate solution concentration using molarity. Perform dilution calculations using the dilution equation. Solutions. Remember that . to . Determine . the . Concentration. . 1. Density. : . is defined as the mass per unit volume.. . . d = m/v. . Relation between the density of liquid compound and its concentration, like . Learning Objectives:. Calculate the amount of substance in moles, using solution volume and concentration . Describe a solution’s concentration using the terms concentrated and dilute. . Key Words:.