Experiment 6 :Observation | KA2 | KA3 | Weight of test-tube + solid / g | | | Weight of empty test-tube / g | X1 | X2 | Weight of solid / g | | | Initial temperature of acid / °C | | | Final temperature of mixture / °C | θ1 | θ2 | Temperature change / °C | | | Discussion :[In the experiment sheet‚ the is an error where questions in (c)(i) should be "the heat change involved the reactions involving KA2 and KA3] (c). i : q1 = mcθ1 ; q = (30.00)(4.18)( θ1) = q1 q2 =
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enthusiasm to exploring the Venus. However‚ from 1961 to 1969‚ there were only 2 successful ones from 18 missions. The first successful mission is Flyby‚ conducted by the US in 22nd July 1962. On 27th August 1962‚ the US released the "Mariner 2"‚ which approached to the Venus on 14th December 1962 (Jet Propulsion Laboratory‚ 1962). The atmospheric temperature on the Venus was gauged by the microwave radiometer on “Mariner 2”‚ and the temperature of the top of cloud on the Venus was measured through
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The purpose of the experiment is to determine the effect of cross-linking has on the viscosity of the polymer solution. In the experiment‚ a hotplate was used to heat 50 mL of tap water in a 200 mL beaker to boiling. It took nearly two hours to fully dissolve 2 grams of PVA [poly(vinyl alcohol)] in the water by sprinkling minor amounts bit by bit. 10 drops of 0.1% methyl red indicator was added to PVA solution for the cross-linking part. 0.4 grams of borax was dissolved into 10 mL of hot water. 3
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special needs -feel secure‚ comfortable and a place where they belong. The interest areas should allow the children choices to explore‚ make things‚ experiment‚ and pursue their interests. The choices should include"quiet zone" areas for reading‚ art activities‚ and games. Areas should also be set for block building‚ dramatic play‚ woodwork‚ sand and water (discovery table) for active engagements. All the interest areas should accommodate a few children at a time‚ in a well defined space‚ so that children
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Expirement 1 Fluid Properties: Density and Surface Tension Table of Contents: OBJECTIVE 1 THEORY 2-3 PROCEDURE 4-6 RESULTS 7-8 DISCUSSION AND CONCLUSION 9 APPENDIX 10 OBJECT: The object of this experiment was to determine the density of a fluid by performing three different methods and use that determined density to calculate the surface tension of the fluid. THEORY: The density of any substance is defined as the mass per unit volume and is denoted by ρ. ρ = m / V (1) m is the mass
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Week 3 Physical Science Lab 2-Doppler Effect XXX-XXXX Course Number: SCI 110 Professor: Karma Pace-McDuffy Due Date: 01/27/2011 Doppler Effect 1 Objectives Measure the detector frequency for waves emitted from a slowly moving source as that source is approaching the detector. (Exploration 1) Calculate the detector frequency for waves emitted from a slowly moving source as that source is moving away from the detector. (Exploration 2) Sketch the wave-front patterns for
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Experiment to Investigate Osmosis in Potatoes The aim of this experiment is to investigate the movement of water in and out of plant cells. The cells chosen for study will be taken from potato tubers. Firstly I will explain what osmosis is. Osmosis is the passage of water from a region of high water concentration through a semi permeable membrane to a region of low water concentration. This definition contains three important statements: a) It is the passage of water through a semi permeable membrane
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Austin Vandermey GS-1140 April 4th‚ 2015 Experiment We as a society have one big problem on our hands. This problem is sleep deprivation because there are not enough hours in the day to get stuff done. Between work‚ school‚ family‚ and leisure it seems like we do not have enough time to get are daily tasks done let alone have time for sleep. It is recommended by the U.S Department of Health that people need a solid eight hours of sleep to maintain good health. I don’t know about you
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Calculating Tank Volume Saving time‚ increasing accuracy By Dan Jones‚ Ph.D.‚ P.E. C alculating fluid volume in a horizontal or vertical cylindrical or elliptical tank can be complicated‚ depending on fluid height and the shape of the heads (ends) of a horizontal tank or the bottom of a vertical tank. Exact equations now are available for several commonly encountered tank shapes. These equations can be used to make rapid and accurate fluid-volume calculations. All equations are rigorous‚
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on the results by varying different variables such as selling price‚ variables cost‚ etc. This altering of variables to determine the net effect of changing original estimates is called sensitivity analysis. Using the computerized application of CVP‚ managers can study various combinations of ‘changes in selling price‚ fixed and variables and assess their effect on profit’ (SWTAFE‚ 2012). Based on the CVP analysis of the three business plans provided by Digital Ltd‚ I would like to recommend the
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