'Glass rod' diaporamas de présentation

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Lab Equipment

Lab Equipment. Gloves. Safety First. Fume Hood. Beakers. Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated. Beakers are not used for measuring because they have poor accuracy. Beaker Tongs.

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Chapter 12: Electrostatics

Chapter 12: Electrostatics. J. Pulickeel November 2008 SPH 3U1. Electric Forces. An Electric Force is a non-contact force which can act at a distance. For instance a (+) charged ebonite rod will attract a (-) pith ball

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Physical Science

Physical Science . Take 10 Week #10 SPS 10-electromagnetism. Day # 1 Question 1. The two resistors shown are connected to identical power sources. Resistor 1 has a resistance of 30?, and resistor 2 has a resistance of 45 ?. The current in resistor 1 is 2 A .

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Chapter 29

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Topic of lecture:

Topic of lecture:. Parenteral drugs in ampoules. Ampoules glass. Plan. 1. Ampoules as vessels for injections solutions. 2. Manufacturing of ampoules. 3. Ampoules glass. Properties and clasification glass. 4. Quality of ampoules. Vessels for injection drugs are subdivided into 2 groups:.

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Static Electricity

Static Electricity. SNC1D0. What is electricity?. Electricity is the energy generated from the transfer of electrons Electrons are located on the outside of atoms, and can easily move in or out of atoms. Types of Electricity. There are 2 main forms of electricity:

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Experiment 7

Experiment 7. Gravimetric Determination of Chloride. Principle: -The chloride content of a soluble sample is determined by precipitating silver chloride ( AgCL ) with added silver nitrate (AgNO3) , filtering, drying and weighing the precipitate.

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(a) indicate a higher voltage.

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Loads and MATERIALS

Loads and MATERIALS. Loads AND MATERIALS

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Lecture 5a

Lecture 5a. Recrystallization. Introduction. Purification techniques Distillation: liquids, gases, some solids Sublimation: solids only Recrystallization: solids mainly Chromatography: solids, liquids, gases

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Experiment 6

Extraction and Quantitation of DNA From E. coli. Experiment 6. QUIZ. Write the brief procedure for cloning the gene X from the Vibrio fischeri to the E.coli ? Write the open structure of DNA (3-4 bp ) by using followings? (no need to draw H bonds). S. Pyr. Purine. P.

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Volumetric Analysis

Volumetric Analysis. Apparatus. The Volumetric Flask. Volumetric Flask. Weigh out a specific mass of anhydrous sodium carbonate on a clean, dry clock glass accurate to 0.01g. Add the solute to a beaker containing a small volume of deionised water.

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Strawberry DNA Lab

Strawberry DNA Lab. Yummy!. Background.

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Dissolve 67.58g FeCl 3 .6H 2 O in 250ml of 2M HCl.

Ferrofluids 1. Dissolve 67.58g FeCl 3 .6H 2 O in 250ml of 2M HCl. Dissolve 39.76g FeCl 2 .4H 2 O in 100ml of 2M HCl. Modified from Berger et al, Journal of Chemical Education, 1999, 26, 7, 943-948. Ferrofluids 2. 1M FeCl 3 should be used within one week of preparation.

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Lesson #10: Enzymes and temperature

Lesson #10: Enzymes and temperature. Objective: - How temperature and pH affects rate of enzymes. Activity #1: eggs anyone?. - Observe and record how the temperature is affecting the three eggs. - Think, pair, share with your neighbour reasons for any changes to the eggs.

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A3.2 - Hexane and Bromine

A3.2 - Hexane and Bromine. Hexane and Bromine are mixed together in three tubes and each tube is then exposed to a different light level. Sides covered with foil. Tube completely covered with foil. Uncovered. Hexane and Bromine. Start.

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Alchemy or Chemistry ?

Alchemy or Chemistry ?. Polymerisation! Polyester paperweights By Adrian KT. What is an ester?. Formed from the condensation of an alcohol and carboxylic acid ?Esterification Joined by ester linkage. Catalysed by H + ions. What is a Poly ester?. Poly: many

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Mitosis in a root tip Use either Allium cepa (onion) or Vicia faba (broad bean).

Mitosis in a root tip Use either Allium cepa (onion) or Vicia faba (broad bean). The roots of onion/broad bean are very convenient for showing stages of mitosis, provided they are fresh and in a growing condition. Chromosomes of Allium : 2n = 16 NOTE: 3 zones of growth can be detected:-.

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