EQUIPMENT AND REAGENTS 1. EQUIPMENTThirty test tubes One test tube rack Two test tube holders Two spatulas Three 250 mL beakers One stirring rodOne medicine dropper IV. EXPERIMENTAL PROCEDURE 1. REACTIONS OF Cu2 - Prepare 3 test tubes‚ 10 drops of 0.5 M CuSO4 are added into each one-10 drops of the following reagents are added into the tubes 2 M NaOH 2 M NH4OH 0.5 M K4Fe(CN)6. - Record your observations. 2. REACTIONS OF SILVER HALIDES - Prepare 3 test tubes‚ 10 drops of 0.5 M KCl‚ 0.5 M KBr‚ and
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conscious or unconscious. Still‚ most paintings tend to be similar enough to others in theme or composition that they lend themselves well to being compared and contrasted. I will compare and contrast George Tooker’s The Subway‚ and Cyril E. Power’s The Tube Train. George Tooker’s The Subway is a haunting yet beautiful piece. Painted using the egg tempera method‚ it is stunning for its strategic usage of warm colors. The intention of Tooker’s painting is to portray such a familiar scene as a subway as
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the food will undergo a chemical change‚ because the indicator is revealing nutrients found within the substance. Materials: For each group of four students 4 Safety Goggles 4 Pairs of Disposable Gloves (Optional) 20 Test tubes 1 Test Tube Clamp 1 Test Tube Rack 1 Clean EyeDropper 1 Glass Stirring Rod Distilled Water in a beaker 1 Wax Marking Pencil 3 Food samples
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rapidly from the beetroot cells to the solution‚ resulting in the 4ml of 50% alcohol containing the most amounts of pigments. Materials and methods The apparatus needed for the experiment are as follows: o Razor blade/ scalpel o Ruler o 5 test tubes & rack o Labels o Forceps o Distilled water o 25%‚ 50% alcohol o Beetroot (Beta vulgaris) o White tile (for cutting) o 2 petri dish o 3 droppers (water‚ 25%‚ 50% alcohol) o Thermometer o Stop watch o 2 Beakers o Supply of hot water
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concentration of a solution can be determined by considering the relationship of absorbance and concentration. Aims or Objectives To have knowledge‚ experience and be most familiar with the use of spectrophometer To have knowledge and experience of tubes and other relevant laboratory facilities needed. 1 2 To learn to independently prepare‚ conduct‚ and record laboratory practicals or demonstrations of many solutions of known concentration. To accurately measure the absorbance at its correct
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this article‚ we will experiment on the significant in strength of the enzyme by using three different test tubes and measuring the amount of product they give off. To determine this we are going to test the amount of color absorbance by using a special tool to help us understand our results. We will see how our end results show the effect of the amount of concentration we apply to each test tube. The results would be shown by the support of two graphs. Introduction: Enzymes are highly important because
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Project I Capital Project I Capital targeted for technology enables hospitals to move ahead and provide valuable services to customers (Sandrich‚ 2008). This facility serves veterans and the capital project proposal is for a Magnetic Resonance Imaging (MRI) compatible monitor and a program for sedation services for patients. Nursing support is necessary for monitoring patients during magnetic imaging for patients receiving oral and intravenous conscious sedation or pain management.
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Speed of Sound (Moving Tube) KEY Purpose: To measure the speed of sound in air using a variable length column of air. Apparatus: resonance-tube apparatus (an open ended tube which can be moved in and out of a container of water) constant frequency source (tuning fork or computer generated tone) rubber hammer meter stick rubber stopper Procedure: 1. Set Up the Experiment: Place the open ended tube into the water‚ and verify that it can produce a resonance tube length within the limits
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| |(a) Label two boiling tubes A and B and place a known weight or number of living organisms in A. | | |Place an equal quantity of dead or non-living material in B. | | |Cover the mouth of each tube with a piece of aluminium foil. Press firmly into place round the rim| | |of the tube.
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tubing and bend the glass tube into a U-shape. The glass tube is then filled with a liquid‚ typically mercury‚ so that all trapped air is removed from the sealed end of the tube. The glass tube is then positioned with the curved region at the bottom. The mercury settles to the bottom After the mercury settles to the bottom of the manometer‚ a vacuum is produced in the sealed tube. The open tube is connected to the system whose pressure is being measured. In the sealed tube‚ there is no gas to exert
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