Moles of Iron and Copper Lab Data and Observations Before the reaction: Mass of empty‚ dry beaker: 153.44g Mass of beaker + copper (II) chloride: 161.44g Mass of two iron nails: 7.27g After the reaction: Mass of two iron nails: 6.29g Mass of beaker + copper (dry): 154.50g Questions and Calculations 1. a) Mass of two iron nails before the reaction – Mass off two iron nails after the reaction = Mass of iron used in the reaction = 7.27g – 6.29g = 0.98g
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The Ok Tedi Copper Mine Ethical Issue * Opening the mine without a waste storage. If they would have waited to open the mine for the waste storage to be completely finished they never would have started disposing trailing in the river. * Environmental damage along the Ok Tedi. The environment that is affected is the river‚ the fish‚ the forest area along the river‚ the gardens‚ and hunting resources. The damage is already done to the environment. How long will it take to get
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Assessment – Geriatric: Second Edition (RIPA G:2) Diagnostic Test Critique General Information Ross-Swain‚ D.‚ & Fogle‚ P.T.‚ (2012). Ross Information Processing Assessment-Geriatric. (2nd ed.). Austin‚ TX: Pro-Ed. No reference was given as to what revisions/changes occurred in the production of the RIPA-G:2 from its previous edition. Purpose of Test The purpose of the Ross Information Processing Assessment-Geriatric: Second Edition (RIPA-G:2) is to provide a comprehensive and norm-referenced
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one or more of the ligand ca coordinate to the metal in more then one way‚ e.g. in NO2 two oxygen atoms are potential donor site. Such a ligand is ambidentate. The following reactions show how linkage isomers can be prepared. [Co(NH3)5Cl]Cl2(s) + dilNH3(aq) → [Co(NH3)5(OH2)]Cl2 [Co(NH3)5Cl]Cl2 + NaNO2 + conc. HCl → [Co(NH3)5(NO2-N)]Cl2 (yellow or orange-brown) [Co(NH3)5Cl]Cl2 + NaNO2 → [Co(NH3)5(NO2-O)]Cl2 (red/ salmon-pink crystal) [Co(NH3)5(NO2-O)]Cl2 + warm HCl → [Co(NH3)5(NO2-N)]Cl2 (yellow
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Chemistry Internal Assessment: Determining the Enthalpy Change of a Displacement Reaction AIM: To determine the enthalpy change for the reaction between copper(II) sulfate and zinc. BACKGROUND THEORY: Bond breaking is endothermic while bond forming is exothermic. The reaction between copper(ll) sulfate and zinc is exothermic as the energy required to form the bonds of the products is greater than the energy required to break the bonds of the reactants. In an exothermic reaction‚ heat is
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Empirical Formula of Copper (II) Chloride Gabriella Jane Lukas B1401404 HELP University Empirical Formula of Copper (II) Chloride Objectives 1. To validate that the empirical formula of copper (II) chloride is . 2. To calculate the percent composition of copper in copper (II) chloride. 3. To illustrate the Law of Constant Composition in copper (II) chloride. 4. To study the reaction between copper (II) chloride solution and aluminium metal. Introduction One of the most fundamental statements
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Studying Chemistry at UCL UNDERSTANDING THE PAST CHALLENGING THE PRESENT SHAPING THE FUTURE Why UCL‚ why UCL Chemistry‚ why London? Course Structure What you’ll do; timetable; assessment From being taught to deep learning Opportunities Why UCL? UNDERSTANDING THE PAST CHALLENGING THE PRESENT SHAPING THE FUTURE History Oldest university (1826) outside Oxbridge in England First inclusive UK university Founded on principle of educating anyone who would benefit Non-CofE‚ women
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C H A P T E R 5 Basic Concepts from Organic Chemistry 5.1 | INTRODUCTION The fundamental information that environmental engineers and scientists need concerning organic chemistry differs considerably from that which the organic chemist requires. This difference is due to the fact that chemists are concerned principally with the synthesis of compounds‚ whereas environmental engineers and scientists are concerned‚ in the main‚ with how the organic compounds in liquid‚ solid‚ and gaseous wastes
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GCSE CHEMISTRY High Demand Questions THE PERIODIC TABLE QUESTIONSHEET 1 The boxes represent particles of different gases. One box shows the particles of elements in group 0 (group 8). A (a) (i) B C D What name is given to group 0 (8) elements? (ii) Name two elements from group 0. ......................................................................................................................................................................... [2] (b) (i) Which box
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to questions for revised activity WM3 Revised check your notes Revised map of the unit 2 3 6 7 9 10 11 WM © Harcourt Education Ltd 2004 Salters Advanced Chemistry These pages have been downloaded from www.heinemann.co.uk/science 1 Notes for students and teachers Chemical Storylines At the end of WM3 on page 109: 1. Instead of Chemical Ideas 13.4 read 13.4 part b‚ which is available on the Heinemann website. 2. Read Section 13.5 in your Chemical Ideas book which deals with naming and making esters
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