Lab 2 fall 2010

Lab 2 fall 2010 - Lab 2 Microscopes and Cells Outline Part...

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Lab 2 Microscopes and Cells
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Outline Part 1: Molarity Part 2: Microscopes Part 3: Cells
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Part 1 Molarity (M) It is a way of expressing concentration concentration of a solute in a solution 1 M = 1 mole solute/ 1 Liter solution Mole (mol): amount of a substance of a system that contains as many elementary units (e.g atoms, molecules, ions, electrons) as there are in 12 grams of carbon ( 12 C)
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1 mole contains 6.023 x10 23 atoms or molecules of the pure substance being measured 1 mole of a substance = molecular mass of the substance in grams 1mole H 2 O = 18 grams H 2 O molecular mass = (2 x 1g) + (1 x 16g)
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Part 2 Microscopes First microscope: 16 th century by Hans Jansen and his son Zacharias Jansen Antonie Van Leeuwenhoek: magnification x300 Observation by Size of object Human Eye 100 μm Light Microscope 1 μm Electron Microscope 10 -10 μm
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Types of Microscopes Light Microscope Dissecting microscope Compound microscope light -> condenser lens -> object -> objective lens -> eyepiece Electron Microscope Scanning electron microscope Transmission electron microscope
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This note was uploaded on 01/05/2012 for the course BIOL 191 taught by Professor Staff during the Fall '08 term at Boise State.

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Lab 2 fall 2010 - Lab 2 Microscopes and Cells Outline Part...

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