EXPERIMENT 1: Aim: To range the metals copper‚ lead‚ silver and zinc together with hydrogen. Start with the strongest reducing agent. Hypothesis: The nobler a metal is‚ the worse reducing agent. Apparatus/requirements: Sandpaper‚ strips of; zinc‚ lead‚ silver and copper‚ solutions containing aqueous; Zn2+‚ Pb2+‚ Cu2+ and Ag+ ions (0.2 M)‚ hydrochloric acid (5.0 M)‚ emery paper‚ test-tubes. Method: Burnish the three metal strips to get a shiny surface‚ after drop a drop of each of the metal
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The Effect of Common Bactericidal Agents on Staphylococcus Epidermidis Introduction Staphylococcus epidermidis is a facultative anaerobic bacterium. It is part of the normal human flora and is found on the skin. Colonies of these bacteria can produce a protective slime called a hydrophobic biofilm. Staphylococcus epidermidis is usually not pathogenic unless it enters the human body. One of the most common places for infections are hospitals where people often have weakened immune systems‚ open
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According to (Tandon‚ 2002)‚ a change agent needs many personal characteristics in order to be successful. The role model of an outstanding change agent is embodied by James Shaw‚ who is described as young‚ ambitious‚ idealistic‚ demanding‚ enthusiastic‚ creative‚ intelligent‚ educated‚ persistent‚ strong-minded‚ as well as naïve‚ inexperienced‚ critical and unrealistic. He seems to have it all. And what his skills portfolio is missing‚ he compensates by building a powerful team around him. By recruiting
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analysis Robert was an agent. An agent is a party who agrees to act on behalf of another. Agency relationships are formed when a principal (employer) and the agent (person acting on the principals behalf) agree on a working arrangement in which the agent acts on the behalf of the principal. The Agency is governed by a large body of common law known as agency law (Cheeseman‚ 2010). In this scenario the local electronic superstore is the principal and Robert is the agent doing the delivering
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Oxidation of an Alcohol: Oxidizing Methoxybenzyl Alcohol to Methoxybenzaldehyde Using Phase-Transfer Catalysis PURPOSE OF THE EXPERIMENT Oxidize methoxybenzyl alcohol to methoxybenzaldehyde‚ using sodium hypochlorite as the oxidizing agent and tetrabutylammonium hydrogen sulfate as the phase-transfer catalyst. Monitor the progress of the reaction by thin-layer chromatography. BACKGROUND REQUIRED You should be familiar with extraction‚ evaporation‚ and thin-layer chromatography techniques
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Student Name: Marwa Noaman ID: 51230262 Introduction: To determine a substance analytically‚ oxidation- reduction reactions are used. During any redox reaction transferring of reactions occurs from a reducing agent to an oxidizing agent. Purpose: * To titrate "Mohr’s salt" solution with KMNO4‚(second standard) which has to be standardize with oxalic acid (first standard). * To learn how acid-base reactions could be used in titration analyses of unknown substances
Free Oxidizing agent Potassium permanganate Carbon dioxide
Period 1 11/7/13 Chapter 35 Discussion Background: Potassium permanaganate is widely used as an oxidizing agent in volumetric analysis. In acid solution‚ MnO4- ion undergoes reduction to Mn2+ this is the equation: 8H+(aq) + Mno4-(aq) + 5e- Mn2+(aq) + 4H2O Since the KMnO4 – ion is violet and the Mn2+ ion is nearly colorless‚ the end point titrations using KMnO4 as the titrant can be taken as the first pink color that appears in the solution (and stays without disappearing).
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ZnSO4 (aq) + Cu (s) Zn is oxidized‚ Zn Zn2+ + 2e- Cu2+ is reduced‚ Cu2+ + 2e- Cu Zn is the reducing agent Cu2+ is the oxidizing agent Copper wire reacts with silver nitrate to form silver metal. What is the oxidizing agent in the reaction? Cu (s) + 2AgNO3 (aq) Cu(NO3)2 (aq) + 2Ag (s) Cu Cu2+ + 2e- Ag+ + 1e- Ag Ag+ is reduced‚ Ag+ is the oxidizing agentOxidation number*: The charge the atom would have in a molecule (or an ionic compound) if electrons were completely
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.C. is committed to supporting business and investing and has developed numerous valuable resources for business owners and investors at various stages in their endeavours. Learn about these resources and how you can make the most out of your opportunities. Business Management Thinking of starting a business but not sure where to stThe Ksp expression is A. Ksp = Sr2+ [ ]3 PO4 3− [ ]2 B. Ksp = 3Sr2+ [ ] 2PO4 3− [ ] C. Ksp = 3Sr2+ [ ]3 2PO4 3− [ ]2 D. Ksp = 3Sr2+ [ ]3 2PO4
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compound. This method is based on either acid-base reaction or oxidation-reduction (Redox) reaction. Usually potassium permanganate solution is used as a standard solution in such redox reactions. Since potassium permanganate ion is a strong oxidizing agent ‚ hence can be used to analyse the solutions. The main advantage of permanganate solution in the titration of colorless unknown solutions is that it acts as self-indicating. The color of
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