Homework 3
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This document provides instructions for a homework assignment on methods of separating mixtures. Students are asked to read about mixtures and separation methods, then research and cite examples of separation processes used in recycling, water purification, and separating solids. The document describes several common separation methods: filtration separates solids from liquids using a porous barrier; decantation separates immiscible liquids or insoluble solids; distillation separates substances by boiling point; paper chromatography uses a mobile and stationary phase; and centrifugation uses centrifugal force to sediment compounds. The assignment is due on Wednesday, August 24th, 2011.
Homework 3
- 1. HOMEWORK: Methods of Separating Mixtures First: Read Chapter 3 sections 3 and 4 (Mixtures of Matter and Elements and Compounds). Second: Read this file.Third: Exemplify the use of methods of separating mixtures in: recycling processes, purification of water, air and solids. Before writing your examples, do research and cite your sources. DUE DATE: Wednesday 24th, 2011
- 2. METHODS OF SEPARATING MIXTURESAugust 21st, 2011
- 3. Methods of separating mixtures FiltrationDecantationDistillationPaper chromatographyCentrifugationMagnetization
- 4. Separates a solid from a fluid (liquid or gas)Uses a porous barrier: filter paperUse gravity or gravity enhanced by a vacuum. Filtration
- 5. Used to separate immiscible liquidsDone by carefully pouring one of the solutions into another containerUsed to separate insoluble solidsDecantation
- 6. Mostly used for homogeneous mixturesSeparates substances by their boiling pointsCondense the gas into a liquid and collectDistillation
- 7. Composed of a mobile phase and a stationary phaseMobile phase: usually a gas or a liquid that travels through the stationary phaseStationary phase: chromatography paperPaper Chromatography
- 8. Uses the centrifugal force in order to sediment compounds in a mixture.Centrifugation
Editor's Notes
- #5: Liquid passes through leaving the solid behindRemove air pollutionWaste treatment
- #6: liquid zinc and liquid silver are immiscible in liquid
- #7: DISTILLED WATERDISTILLED BEVERAGES: higher alcohol concentration low boiling point
- #8: Travel at different speedsFor testing purity of compoundsIt has the ability to separate, identify, and quantitate the compounds that are present in any sample that can be dissolved in a liquid