PPT-Concentration Molarity Moles of solute per liter of solution

Ex 1 What is the molarity of a solution that was prepared by dissolving 115g of solid sodium hydroxide in 150L of water Ex 2 Calculate the molarity of a solution prepared by dissolving 156g of gaseous HCl in enough water to make 268 mL of solution. , . Dilution. cdurakovic@ius.edu.ba. Molarity. Molarity. is the number of moles of solute dissolved in one . liter. of solution. The units, therefore are . moles per . liter. , specifically it's moles of solute per . 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. 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 ?. How do we indicate how much of the electrolytes are in the drink?. Concentrated versus Dilute. solute. solvent. Lower concentration. Not as many solute (what’s being dissolved) particles. Higher concentration. Molarity and Dilution. CONCENTRATION. Concentration. - a . measure of the . amount . of solute that is dissolved in a given . amount . of solvent. . QUALITATIVE: . (tells about . the . quality, . not a #). Part I. I. Properties of Liquids. A. Water. 1. Water is a . triatomic. molecule with covalent H-O bonds.. 2. Water experiences high surface tension and hydrogen bonding.. 3. Water molecules are polar.. Molarity and Dilutions. E.Q.: . How is the concentration of a solution calculated . (. molarity)?. Molarity. Molarity. – . Measurement of the concentration of a solution (how much solute is in a volume of solution). Mixture: a . combination of two or more substances that do not combine chemically, but remain the same individual substances; can be separated by physical . means.. Two types:. Heterogeneous. Homogeneous. 8.1. Solutions. 2. Solutions: Solute and Solvent. Solutions. are homogeneous mixtures of two or more substances. consist of a solvent and one or more solutes. 3. Solutes. spread evenly throughout the solution . Solutions are classified as mixtures.. The a. mounts of substances mixed (solute and solvent) can vary in different solutions.. Concentration. is a way of communicating how much solute is dissolved into a given amount of solution.. Molarity = moles of solute / Liters of solution. Concentration. ~How much solute is present in a solution compared to the solvent.. Molarity (M)- moles of solute per liter of solution. M = mol/L. 2.1 M AgNO. M. ). number . of . moles of solute . (n) per . liter (L). of . solution. Molarity (. M. ) = . Moles of Solute. . Liters of Solution. Note: Moles = . Mass of Solute. Molar Mass of Solute. Mortar. Pestle. Weighing paper (pergamyne). Weighing boats. Digital Analytical balances. Pipette Tips. Tips in racks, ready for routine applications. Bench-top centrifuge. High speed centrifuge. Micro test tube centrifuge. 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:.