FIGURE 5.1 Probability of Contamination. The solid line in the top graph represents variability in technique against a scale of 100 (right-hand axis), which represents perfect…

2012 H I G H E R S C H O O L C E R T I F I C AT E E X A M I N AT I O N Chemistry General Instructions • Reading time – 5 minutes • Working time – 3 hours • Write…

Cambridge Checkpoint Science Workbook 3 © Hodder & Stoughton Ltd 2013 1 Photosynthesis 1 Answers to the CAmbridge CheCkpoint sCienCe workbook 3 You may award one mark…

Water Water By Miss Buicke OC14 Use cobalt chloride paper or anhydrous copper sulfate to test for water   OC30 Conduct a qualitative experiment to detect the presence of…

1 1. Introduction Absorption spectrophotometry is an effective technique in analytical chemistry to determine the concentration of coloured materials in a solution. Beer-Lambert…

Preparation Of Chemical Solutions How to determine the molarity of Commercial Concentration Reagents For example the label on a bottle of commercial sulphuric acid is : Specific…

presentation

1.Purification of Substances2. The need for pure substance Criteria for purity Objectives: Methods of Purification: Filtration Crystallization Know their principles, procedures…

Slide 1 Chapter 3: Separation Techniques You will learn about: Pure substances Methods of purification: - Chromatography - Filtration - Crystallization - Distillation You…

Separations Magnets Settling Decanting Filtering Evaporation Distillation Chromatography Writing Down Results When you do a scientific investigation make sure you WRITE DOWN…