PPT-8.3 The Dissolving Process

Dissolving Compounds For a substance to dissolve solutesolvent attractions must overcome the attractions within both solute and solvent Example In order to dissolve ionic bonds must be broken by water . jocprcom 163 Fast Dissolving Tablet An Overview Debjit Bhowmik ChiranjibB Krishnak anth Pankaj RMargret Chandira Rajeev Gandhi college of Pharmacy Nautanwa Maharajganj Uttar Pradesh Abstract Fast dissolving Tablets are disintegrating andor d issolv Solid eg salt Liquid eg water 1 Draw a diagram of a solid dissolved in a liquid Use one colour for the solid and another for the liquid particles 2 What happens to the solid particles when the solid dissolves Thre e factors affect the rate of dissolving 1 Temperature as the particles in the solvent and solute speed up they mix together faster 2 Agitation stirring or shaking the solution removes the solvent that has already dissolved pieces of the solute Andrew Scholbrock, Greg Kana, Jared Hansford, Kyle Manhart, Matthew Campbell University of Colorado at Boulder April 29 th , 2011 For the third team project assignment the goal for the group was to Sink. Float. Dissolve. Enthalpy. Enthalpy (H)is the total amount of energy contained within a substance. Included all forms of energy, kinetic, potential…. Very difficult to measure all forms of energy within a substance, therefore a change in enthalpies is measured whenever a change occurs.. Jacoby Toles . 8. th. Grade. Millbrook Middle School. . Materials. Small Aluminum Pie Tin. Styrofoam Cup. Acetone. Safety Goggles . What Is Acetone? . Acetone is a volatile organic solvent with formula CTT3 COCTT3 it is frequently used In fingernail polish removers and is a commonly used solvent in Chomstne Laboratories . Chemistry in Aqueous Solution. Types of Electrolytes. Strong : Completely dissociated (break into ions). Weak : Partially dissociate. Non : No dissociation occurs. Examples of Electrolytes. Strong: Soluble Ionic Compounds. Section 6.2. Objectives. Describe how a substance dissolves in terms of its solubility, molecular motion, and solute-solvent interactions.. Identify several factors that affect the rate at which a substance dissolves.. Next Generation of Drug Delivery . JUVIC Biotech. Inc.. Yonsei. University. (South Korea). Shayan F. Lahiji. Shayan@yonsei.ac.kr. Professor . Hyungil. Jung. H. ijung@yonsei.ac.kr. Routes of Administration. Endo vs Exo Reaction INQUIRY . Solution Process Model . Solute particle separate (endo). Solvent particles separate (endo) . Solute and Solvent particles combine (. exo. ) . Electrolytes. Electrolytes conduct electricity!. Ex. 1. What is the molarity of a solution that was prepared by dissolving 11.5g of solid sodium hydroxide in 1.50L of water?. Ex. 2. Calculate the molarity of a solution prepared by dissolving 1.56g of gaseous HCl in enough water to make 26.8 mL of solution.. Boiling . Burning. On a molecular level, how would you describe the difference between boiling something, and burning something?. Bellwork: Monday 4/23/2012. Physical Change. Chemical Change. Different Phase- Still same bonds; farther apart, moving faster. What does “dissolve” mean? . What . kinds of things dissolve?. What do things dissolve in? . Dissolve. Dissolve. : . to make a solution of a substance by mixing with a . liquid. Example: to dissolve salt in water.