Chem 3418 Organic Chemistry Laboratory I Acid Base Review Definition In general‚ an acid is a substance that can donate a proton (H+) and a base is a substance that can accept a proton. Any proton in an organic molecule can potentially be donated. The most acidic proton in a molecule would be donated first. Any lone pair in an organic molecule can act as the proton acceptor. An acid (HA) reacts with a base (in this case H2O) to form the conjugate base of the acid (A-) and the conjugate acid of the
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What is a Medical laboratory technician? A laboratory technician process specimens and perform laboratory tests ordered by physicians and medical technologists. Many specialize in cytotechnology‚ hematology or microbiology. As a medical technician‚ you may perform tests on saliva‚ blood‚ and tissue samples and then be responsible for recording and sharing the results with the physician. Performing these tests often requires the ability to operating various medical machines and equipment. You may
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Acid used. 3: 2 Fe2(SO4)3 + 2 H2 + 4 NO ? 4 Fe.NO.SO4 + 2 H2SO4 The Fe.NO.SO4 forms a brown ring in the middle of the solution produced by the reaction‚ making it easy to identify the presence of nitrates in the water. 4. LABORATORY METHOD In laboratory Cl2 gas is
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CHEMISTRY III : (CHEMISTRY & YOU) 1 PRETEST 1. The science that tackles the study of matter‚ its structure and the changes in composition that matter undergoes is a. Astrology c. Ecology b. Chemistry d. Physics 2. When a chemist performs an experiment‚ the quantity that is being tested is the a. control c. theory b. law d. variable 3. Juan is comparing how many kilos of rice can be contained in a sack. What process is he doing? a. counting c. measurement b. interpolation
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Chapter 6 Chemical Reactions and Quantities The Mole General‚ Organic‚ and Biological Chemistry Copyright © 2010 Pearson Education‚ Inc. 1 Collection Terms A collection term states a specific number of items. 1 dozen donuts = 12 donuts 1 ream of paper = 500 sheets 1 case = 24 cans General‚ Organic‚ and Biological Chemistry 2 A Mole of Atoms A mole is a collection that contains the same number of particles as there are carbon atoms in 12.0 g of carbon 12C 6.02 x 1023 atoms of
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Title: Laboratory Techniques and Measurements Purpose: To properly use‚ understand‚ and correctly convert the scientific measurements such as: finding density‚ converting centimeters to millimeters‚ 3 different units of temperature‚ etc… Procedure: I used a metric ruler to measure the length of the objects‚ a thermometer to determine the degrees of the water‚ and a scale to determine the mass of the designated objects. I used the proper equipment to measure out or hold the item. After I gathered
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This is important for the students to appreciate the knowledge of chemistry that is still new for themselves. Personally‚ I think that this chapter is an interesting chapter as it revealed the way of scientist produces the material around me. It also gives me new knowledge of the uses of chemical substances that I usually found in the laboratories. I hope‚ by learning this chapter‚ I will be more interested in learning chemistry as it will help me in the future. All the equations from this chapter
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Laboratory Safety Standards Jill Olson A school science laboratory is an excellent setting for students to explore and investigate the world around them. Almost every part of students’ lives is affected by science. Allowing them to see‚ touch‚ and manipulate objects in a laboratory situation gives students the real world experience to get them excited about science and to prepare them for college and beyond. However‚ James A. Kaufman‚ director of the Laboratory Safety Institute‚ proposes that
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35 43 45 49 55 Edexcel IGCSE English - Exemplar Coursework Page 3 Edexcel IGCSE English - Exemplar Coursework Page 4 IGCSE English Language Paper 3: Written Coursework – Exemplar Materials Sample A Edexcel IGCSE English - Exemplar Coursework Page 5 Edexcel IGCSE English - Exemplar Coursework Page 6 Edexcel IGCSE English - Exemplar Coursework Page 7 Edexcel IGCSE English - Exemplar Coursework Page 8 Edexcel IGCSE English - Exemplar Coursework Page 9 Edexcel IGCSE English -
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level 5070/31 CHEMISTRY Paper 3 Practical Test October/November 2010 CONFIDENTIAL INSTRUCTIONS *4711088250* Great care should be taken to ensure that any confidential information given does not reach the candidates either directly or indirectly. The Supervisor’s attention is drawn to the form on page 7 which must be completed and returned with the scripts. If you have any problems
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