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Separation & Purification

Separation & Purification. Today’s Lesson. Separation & Purification Some Questions Filtration Poster. Separate A Solid From A Liquid. There are different ways to separate a solid from a liquid. These include: By filtering By centrifuging Evaporation Crystallizing. Filtering.

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Separation & Purification

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  1. Separation & Purification

  2. Today’s Lesson • Separation & Purification • Some Questions • Filtration • Poster

  3. Separate A Solid From A Liquid • There are different ways to separate a solid from a liquid. These include: • By filtering • By centrifuging • Evaporation • Crystallizing

  4. Filtering • As you can guess, you can separate liquid and a solid through filtration. The solid is removed from the solution through filter paper. • The solid is left in the filter paper. • The liquid will be left in the conical flask.

  5. Centrifuging • If the particles are suspended in liquid (small particles that do not sink to bottom), then centrifuging will help. • You put the mixture into a test tube. The test tube is then spun around quickly and the solid moves towards the bottom.

  6. Evaporation • You can remove a liquid from a dissolved solid through evaporation. • The liquid will evaporate and the solid will be left behind

  7. Crystallization • When a liquid is heated, it can often dissolve more solid. This is because there is more energy present (as heat) and any physical changes that occur can happen more easily. • When the liquid cools, the some of the aqueous (in liquid) solid will then form a crystal.

  8. Questions • Read pages 256/257 and answer Q 1-6 • Homework: Read "A Closer Look At Gases' P230-231 and answer Q1, 2, 3, 4 & 5.

  9. Finishing Experiment • Now – let’s filter our experiment from last lesson. Fun Fun!!!! http://howismyface.com/faces-pic-Excited.php

  10. Poster • We will be creating a poster for a chosen atom but it will be a little different – we will be writing in the third person  • The posters are due Monday 3rd of September and will be displayed out in the 3rd Floor Corridor. • Information to be covered is on next slide

  11. To be included • Introduce yourself – who found you, are you are metal/non-metal/metalloid, what are you used for. • Introduce how to read a Periodic table through your atom. Include symbol, atomic mass, atomic number. Show how to find out the number of protons, electrons and neutrons. • What period or group are you in? Tell us what they both tell us

  12. Continued • Include an electron dot diagram for your element. • Do I have any isotopes? If so – what are they and what percentage does each have • Any other interesting facts or pieces of information • Bibliography using MLA referencing.

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