Chromatography lab Purpose: To separate food colorings into their component dyes using paper chromatography. Materials: Chromatography paper‚ Food coloring‚ Ruler‚ Pencil‚ Solvent solution‚ Test tubes‚ Test tube rack. Safety precaution: wear aprons‚ to make sure that you don’t get any of the alcohol on your clothes‚ and if you break a test tube you don’t get glass on you. Procedure: See-attached handout. Results: See chromatography with Audrey’s lab report.
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TABLE OF CONTENT NO. | CONTENT | PAGE | 1. | Title | 2 | 2. | Theory | 2 | 3. | Introduction | 2 | 4. | Objective | 3 | 5. | Apparatus | 3 | 6. | Procedure | 4 | 7. | Result | 6 | 8. | Calculation | 10 | 9. | Discussion | 13 | 10. | Conclusion | 14 | 11. | References | 14 | TITLE: H1 – Osborne Reynolds Demonstration INTRODUCTION: Osborne Reynold’s Demonstration has been designed for students experiment on the laminar‚ transition and turbulent flow. It consists of a transparent
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showing the mass of the amount of unknown acid X measured in grams (±0.001g) Table 2: Table of reading of the burette initially filled with 25mL of 0.201moldm-3 sodium hydroxide (NaOH) to titrate 25mL (±0.03mL) of unknown acid X in mL (±0.05mL) after each titre. Reading on the burette initially filled with 25mL of 0.201moldm-3 NaOH (±0.05mL) First titre 21.3 Second titre 18.2 Third titre 15.2 Fourth titre 12.0 Qualitative data Observations: When dissolving the acid X in the water
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EXPERIMENT 5 SEPARATION OF A MIXTURE INTO ITS COMPONENTS BY FRACTIONAL CRYSTALLIZATION Introduction: Fractional crystallization is one of the experimental techniques used to separate or purify mixture. Fractional crystallization makes use of the differences of solubility to separate the components of a mixture. Goals: Applying fractional crystallization to separate a mixture of salicylic acid and copper sulfate pentahydrate into its components. Calculate the percent of salicylic
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Circuit Tourism A country like India with it’s diversity can best be covered in clusters of tourists spots grouped together so that they are well connected for all travelers‚ especially international travelers and more especially repeat travelers. Circuits can be developed within a state or between two states. Inter-state circuits could be based on various themes or on effective transport connectivity. What we mostly see is intra-state circuit tourism development. For example Goa‚ Rajasthan
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Goldfish ABSTRACT The abstract is a condensed version of the entire lab report (approximately 250 words). A reader uses the abstract to quickly understand the purpose‚ methods‚ results and significance of your research without reading the entire paper. Abstracts or papers published in scholarly journals are useful to you when you are conducting library research‚ because you can quickly determine whether the research report will be relevant to your topic. The material in the abstract is written
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Questions and Hypothesis: Seed germination‚ plant growth‚ and sprouting of leaves are affected by several factors: supply of nutrients‚ water‚ exposure to sunlight‚ and conditions of surroundings. Due to certain stimuli in the surroundings plant “hormones” cause plants to behave in ways that ensure the most efficient use of resources while preserving the most energy. One stimulus to consider‚ is the exposure of plants to sunlight; when plants are just sprouting and are underground‚ the sti
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INTERPRETATION OF RESULTS: This experiment circles around with the Newton’s second condition of equilibrium in rotational motion. It describes by net torque acting on a body which is zero. The ability of the body to rotate in a certain direction is varied according on how much torque is applied. To prove that‚ a beam that is subjected to two forces is balanced by adjusting the perpendicular distances. When applied force is weight‚ modification in masses added is also done. Once equilibrium is achieved
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hypothesis was that EDTA will remove the ions‚ and will not work. Materials/Methods For unit 7.3 the experiment needed 2 microfuge tubes one labeled "L" for lactose and the other labeled "M" for maltose. The experiment also called for a total of 3 clean plastic pipettes. With one pipette add milk up to the 0.5 line of the lactose tube. With the second clean pipette add maltose solution up to the 0.5 line of the maltose tube. With the third clean pipette‚ add lactase solution to each tube‚ until
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Horizontal Line Potato 3 Notch DATA COLLECTION (Fig. 1) Diagram demonstrating the correct preparation of a potato – cylindrical strips marked according to the legend Potato Osmosis Biology SL - ATh Raw Data Table – Mass and Lengths of Potato Strips – Pre- & Post-Experiment NaCl Potato Initial Mass/ Mass after Initial Length Concentration/M Samples g±0.01 Solution / /mm±1 g±0.01 1.00 Potato 1 1.93 1.42 40 Potato 2 1.88 1.31 40 Potato 3 2.02 1.56 40 0.75 Potato
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