'Solute solvent' diaporamas de présentation

PRINCIPLES OF CHEMISTRY II CHEM 1212 CHAPTER 12

PRINCIPLES OF CHEMISTRY II CHEM 1212 CHAPTER 12. DR. AUGUSTINE OFORI AGYEMAN Assistant professor of chemistry Department of natural sciences Clayton state university. CHAPTER 12 SOLUTIONS. SOLUTION. - A homogeneous mixture of two or more substances Solvent

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Solutions!

Solutions!. Matter. Pure Substanc es. Mixtures. Elements. Compounds. Homogeneous Mixtures. Heterogeneous Mixtures. Classification of Matter. Heterogeneous Mixtures. See visibly different regions Granite Dirt Cereals Oil & Vinegar See a boundary Ice cube in water.

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Jeopardy

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Chapter 6 Chemical bonding and molecular shapes

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Properties of Solutions: Ways of Expressing Concentrations

Properties of Solutions: Ways of Expressing Concentrations. = mass of component in solution. Weight percentage. x 100. total mass of solution. Parts per million (ppm). = mass of component in solution. x 10 6. total mass of solution.

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Gases & colligative properties

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Chapter 7: Properties of Solutions

Chapter 7: Properties of Solutions. Mixture Review. Mixtures are combos of elements and/or compounds that are physically combined True mixtures can be separated by physical means that do not break or form bonds Mixtures do not exist in a fixed ratio by mass. Classifying mixtures.

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Solutions Part I: Colligative Properties (loosely from Jespersen Chap. 13 Sec 6 & 7

Solutions Part I: Colligative Properties (loosely from Jespersen Chap. 13 Sec 6 & 7. Dr. C. Yau Spring 2014. What are Solutions?. Quick reminder: Solutions are homogeneous mixtures consisting of... generally one solute dissolved in a solvent . (More than one solute is possible.).

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Solutions Part I: Colligative Properties (loosely from Jespersen Chap. 13 Sec 6 & 7

Solutions Part I: Colligative Properties (loosely from Jespersen Chap. 13 Sec 6 & 7. Dr. C. Yau Fall 2013. What are Solutions?. Quick reminder: Solutions are homogeneous mixtures consisting of... generally one solute dissolved in a solvent . (More than one solute is possible.).

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Properties of Solutions

Properties of Solutions. SC 132 CHEM 2 Chemistry: The Central Science CM Lamberty. Homework. Chapter 13 14, 16, 18, 20 22a, 24, 28, 30, 32, 34 36, 38, 40, 42, 44, 46, 48, 50, 52, 54 60, 64, 66, 68, 70, 72, 74, 76, 78, 86, 89, 91, 98, 112. The Solution Process.

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Lecture : Inhomogeneous Solvation Theory with Application to WaterMap

Statistical Thermodynamics. Lecture : Inhomogeneous Solvation Theory with Application to WaterMap. Di Cui tug55642@temple.edu. Overview of the Lecture. Part I: Basic theory of Inhomogeneous Solvation Theory (IST) Solvation Energy One Body Solvation Entropy

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GSCI 163

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UV-vis Absorption (Extinction) Spectroscopy

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SOLUTIONS

SOLUTIONS. ACTIVATOR---KWL CHART. Solutions. Are homogeneous mixtures (look the same throughout) Are PHYSICALLY combined See p. 401. 2 Parts of a Solution:. solute. solvent. Substance being dissolved Usually present in the least amount Ex: salt.

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Unit 7: Solutions

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Chapter 15: Solutions

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Concentration

Concentration. Molarity (M). Practice. One liter of 5.0 M HCl contains how many moles of HCl ?. M = 5.0 m ol= ? L = 1 L. x = 5 mol. Practice. 55mL of 2.4M glucose contains how many moles of glucose? Need to change mL to L. M = 2.4 m ol = ? L = 55mL ? 0.055L. x = 0.132 mol.

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Messing with Mixtures

Messing with Mixtures. Part A: Hit The Trail!. (1) Look at the mixture in Bag A. What do you see? (2) Would this mixture be classified as a heterogeneous or homogeneous mixture? Give a reason for your answer.

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Interionic association in glycylglycine in aqueous solution of NaCl

Peptides are most important molecules due to their wide application in drug production and their role as signal transmitters in the cell communications. Therefore, the systematic study of peptides can prove valuable information about their behavior in solutions and insight into the conformational stability of proteins. Ultrasonic velocity and density values for ternary system (amino acid / di-peptide salt water ) i.e. glycylglycine each in 1.5 M aqueous solution of NaCl used as a solvent for variable concentrations of glycylgycine in the range of 0.00 to 0.15 molality at a temperature 303.15K. Using ultrasonic velocity and density data, the thermodynamic parameters such as molar volume (V),volume expansivity (α), specific heat (Cp), molecular radius (r0), Molwyn-Hughes parameter (C1), cohesive energy density (ε), internal pressure (Pi), change in entropy(∆Φ), disorder parameter (δ), interaction energy (∆E) and solubility parameter (δS). The observed intermolecular interaction shows ion–solvent, ion-ion and dipole-dipole interactions. The interaction of di-peptide like glycylglycine with aqueous electrolyte solutions due to its vital role in various biological processes in our life. The present study gives us valuable information about various parameters to explore the application of Glycylglycine in medicinal purpose.

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Ultrasonic Investigation of Molecular Interaction in Paracetamol Solution at Different Concentrations

Paracetamol is an antipyretic drug, when it is taken it reduces the body temperature. So it was thought better to study intermolecular interaction and thus behavior of paracetamol under varied conditions such as temperature, concentration etc. For this certain important physical parameters such as adiabatic compressibility, specific acoustic impedance, relative ssociation, intermolecular free length, relaxation time, free volume, Rao’s constant, Wada’s constant etc. are evaluated using ultrasonic velocity, density and viscosity of paracetamol solution at different concentrations and at 303K.

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