AP/IB Chemistry Internal Assessment Lab Format The following titles and subtitles (in bold) should be used for your lab report and given in this order within your lab report. Title: choose one to fit your experiment I. Design A. Problem – must be a focused‚ clear research question. B. Hypothesis (When appropriate) • Clear answer to Problem – • Logical rational • your conclusion should address the hypothesis you are giving here. C. Variables
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Joanna Park Mrs. Carrillo CP chemistry per. 5 September 17‚ 2012 i. Beverage Density Lab Report ii. Purpose: The purpose of this experiment is to determine the percentage of sugar content in beverages. iii. Materials: Distilled water‚ beverages (juice‚ soda‚ sport drinks)‚ Sugar reference solutions (0‚ 5‚ 15‚ ad 20%) 25ml each‚ Balance‚ centigram(0.01g precision)‚ Beaker (100-mL)‚ Erlenmeyer flask (125-mL to collect rinse solutions)‚ Pipet(10-mL)‚ Pipet bulb or pipet filler iv
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DEPARTMENT OF BIOLOGY‚ CHEMISTRY and ENVIRONMENTAL SCIENCE LABORATORY MANUAL Instructor: Dr. M. Wilson CHEM401: BIOCHEMISTRY for NURSES Prepared by: Oreane Collins CHEMISTRY LABORATORY REGULATIONS AND SAFETY PRECAUTIONS Reference: http://www.sciencebyjones.com/safety_rules.htm Thanks to the Flinn Scientific Safety Rules for much of the below. General Guidelines 1. Conduct yourself in a responsible manner at all times in the laboratory. 2. Be familiar with
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of the brightness of bulbs A‚ B‚ and C in Figure 2-1? A>B>C A being the brightest 2. How do you predict that changing the direction of the current by reversing the connections to the battery in Figure 2-1 would change the rankings in (1)? I don’t think it will change at all. The brightness should be the same in diagram b and diagram a it should also stay the same. 3. How will you compare the currents in the circuits in Figure 2-1 experimentally? What equipment will you use?
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CHEM 2123 and 2125 – Organic Chemistry Lab I and II GUIDELINES FOR WRITING LAB REPORTS INTRODUCTION Writing reports in organic chemistry lab may differ from the way it’s done in general chemistry. One goal of this course is to introduce you to the record keeping methods used in research labs. Such methods are designed to organize experimental data in a format similar to that required for publication in major scientific journals. Here are some important considerations that apply in research settings
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AP Chemistry Lab 2: Analysis of Alum Lab Objective: In this lab we will analyze alum by two techniques in order to verify its identity. The melting point and the mole ratio of hydrated water to anhydrous aluminum potassium sulfate will be determined. Lab Procedure: 1. Use a mortar and pestle to crush alum. 2. Pack the alum in capillary tube‚ and then fasten it to the thermometer. 3. Fasten the thermometer to the ring stand. 4. Immerse the bottom of the
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1. You feel hungry because of the satiety center in your brain falls short of particular hormones to function and then sends the signal of hunger. 2. You fall in love‚ get attracted and have a feeling of belonging because of certain monoamines present in your brain which get stimulated through nerve sensors. 3. If you have wondered‚ why is the sky blue‚ it is due to a phenomenon called the "Rayleigh scattering"‚ which depends on scattering of light through particles which are much smaller than
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2KOH + H2 Table 8.6- Chemical reaction of copper strip and 4 mL silver nitrate Observations Precipitate formed on copper strip; precipitate was greenish brown in color. Reactants: Cu and AgNO3 Products: Cu(NO3)2 and Ag Balanced chemical equation 2AgNO3 + Cu Cu(NO3)2
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II PUC – CHEMISTRY (34) MODEL QUESTION PAPER - 1 Time: 3hours 15 minutes Maximum marks: 70 Instructions: 1. The question paper has four parts: A‚ B‚ C and D. All parts are compulsory. 2. Write balanced chemical equations and draw labeled diagrams wherever required. 3. Use log tables and the simple calculator if necessary. (Use of scientific calculators is not allowed) PART-A I. Answer ALL of the following. (Each question carries 1 mark) 10x1=10 (Answer each question in one word or
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AP Chemistry Kinetics Lab Abstract: The purpose of this lab is to learn how to write law expressions‚ determine orders by graphs‚ and calculate rate constants. By determining the number of drops of sodium hypochlorite necessary to make a diluted food dye change to colorless in less than three minutes helps calculate the absorbance which can then be analyzed to find the pseudo rate constant and eventually leading to the rate constant and the rate law. The results show that the m and n are both 1st
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