car‚ or to listen to your favorite music. We made a simple battery out of a potato by placing in it a zinc strip and a copper strip. At the zinc strip‚ the acid dissolves the zinc freeing electrons. At the copper strip‚ the acid uses those electrons to form hydrogen gas. Because the zinc strip frees electrons and the copper strip uses electrons‚ if you put a wire between the two strips‚ then electrons will flow from the zinc to the copper. This is electrical energy. The flow of electricity is
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LABORATORY REPORT PRACTICAL 2 (ELECTROPHORESIS OF SERUM PROTEIN) DATE : 10 OCTOBER 2013 PART A SEPARATION OF SERUM PROTEINS USING THE ELECTROPHORESIS METHOD. OBJECTIVES: 1. To understand the analytical methods involved in analyzing serum proteins. 2. To study the serum protein electrophoresis pattern to aid the understanding of the relationship between the structure and the function of proteins. PRINCIPLE OF PRACTICAL: This technique is based on the movement of
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at ? Coefficient of linear thermal expansion of gasoline and steel are and ‚ respectively. 5. A flat bimetallic strip consists of a strip of aluminium firmly glued to a strip of iron. When heated‚ the strip will bend. Which metal will be on the outside of the curve? Why? Optional: Assuming a perfectly circular curvature‚ calculate the radius of curvature of the bimetallic strip when the temperate is raised by 50 ‚ knowing that the initial length is 10 cm and each of the metals is 2 mm
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In the second separation of this experiment‚ the Erlenmeyer flask with the first filtrate was put into a beaker so the filtrate was in the beaker. The beaker was then heated on a hotplate until near boiling. After the whey protein had precipitated‚ a vacuum filter was used to filter out the whey. These proteins were then air-dried. A qualitative test was done to indicate that the sample extracted was the protein whey. Again‚ a small test tube was used and 2 mL of protein test solution was put in
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Conductivity Cups • Filterpaper • Wires 2x • Crocodile clips 2x • 100mL of 0.1 mol ZnSo4 Solution • 100mL of CuSo4 Solution with the following concentrations - 0.1 mol - 0.3 mol - 0.5 mol - 1 mol - 2 mol • 1 mol of KNO3 Solution • Zn strip 5x • Cu strip 5x • Thermometer • Multimeter DIAGRAM METHOD 1. Measure the room temperature by using a thermometer. All experiments are carried out at the same room temperature. 2. Measure the temperature of ZnSo4 and CuSo4
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cells. The size of the molecule determines what goes through the tubing. On of the materials that we will be using is glucose. glucose is a simple sugar that easily dissolves in water. To test for the presence of glucose we will use glucose test strips. The strip will change from an aqua blue color to a brown color if there is glucose in the solution. Starch is a complex molecule that forms from a suspension in the water. To test for the presence of starch I will use Lugol’s iodin. When it comes in contact
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Experiment 6 Experiment 6 Some Properties of Charge Introduction: Electrical phenomena were studied extensively during the eighteenth century by scientists and amateurs alike including Benjamin Franklin. Among Franklin’s achievements were contributions to the understanding of electrical behavior beyond his famous (and dangerous) work with lightning. During this time‚ there was a certain social prestige attached to anyone who undertook such studies‚ and much of what passed for
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evidence that they gathered. TIME ESTIMATE: Prep: 60 minutes (cutting paper stripes and marking the crime scene strips takes a lot of time.) Activity: 90 minutes + answering the questions as homework MATERIALS: • Hydroville Science Journal • Pencil • Ruler Per group of four students: • Test tubes or culture tubes (20 X 150 mm) in test tube rack • Strips of chromatography paper (1 x 16 cm) • Strip of chromatography paper with crime scene ink (1 x 16 cm) Class Material on Tool Table: • set of black ink pens
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evaporating. While letting the hexane-acetone set I then prepared my chromatography strip but first cutting it to 20 centimeters and then cutting one end to a point. Then I used 2-3 spinach leaves and a quarter to leave a green residue line containing the pigments of the spinach leaves. I then inserted the strip with the spinach pigments into the cylinder I prepared earlier with the hexane-acetone. When the chromatography strip was properly into the cylinder I then put the rubber stopper onto the cylinder
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and relieve swelling‚ bruising and still allows full joint movement (Keli‚A.(2012). An example of an injury where kinesio tape has been used is a gastrocnemius strain more commonly know as a calf strain. In this case the rehabber will take a small strip of the kinesio tape and apply one end distally to where the pain is located ensuring to allow for around ten percent of elasticity in the tape and apply over the area of pain. (Katchanathu‚ J. (2013). Kinesio taping was found to be effective in reducing
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