then compare the result with theoretical value FC = m(2r. Apparatus : 1Rubber bung 1Glass tube (About 15 cm long) 1Slotted weights‚ with hanger 12 × 0.02 kg 1Nylon thread 1.5 m 1Paper marker 1Adhesive tape 1Metre rule 1Stop watch 1Safety goggles Set-up: Procedure: 1. Attach one end of a 1.5 m length of nylon thread to a rubber bung and thread the other end through a glass tube‚ a paper marker and a number of weights as shown. 2. First adjust the position of the marker so that
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Testing the effect of concentration on rate of reaction Plan: We are investigating the effect of nitric acid on calcium carbonate. We are doing this experiment‚ as we would like to understand the effect that acid rain has on limestone. We also want to understand how acid can have an effect on rate of reaction. The word equation for the reaction that will take place is: Calcium Carbonate + Nitric Acid Calcium Nitrate + Carbon Dioxide + Water The balanced symbol equation
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Unit1 : HLTWHS001 Participate in work health and safety Learner Guide 1. Write a two page report(600 words) on participating in work health and safety. Importance of health and safety It could be possible when it occurs in every activity. Even though‚ we can injury by external environment while we are sitting on the chair. But‚ not all cases‚ we can eliminate ‚ process or minimize by founding earlier the hazard. For example‚ have a look around how many hazards are exist. If there is a broken toy
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contract at http://www.flinnsci.com/Documents/miscPDFs/Safety_Contract.pdf and then answer the questions below in sufficient detail: (a) (1 pts) Describe some general lab safety rules that were discussed in this video and reading. Answer: wearing goggles‚ closed toe shoes‚ and lab coat (b) (1 pts) Briefly discuss the importance of safety in the chemistry lab‚ and why it is important to know the location of safety equipment in the lab. Answer: Safety in the lab is essential to not only the person
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ab: Observing a Chemical Reaction Name: Deja Eason Period: 5th Period Partners: Melingh Patterson‚ Tori Millens Date Performed: 9/2/11 Teacher: Mrs. Medina Abstract: This experiment was all about observing a chemical reaction. During the experiment‚ we made observations and possible explanations on why Copper(II)Chloride Dehydrate and Aluminum foil created a chemical reaction. The observations were made by using Copper Chloride‚ Aluminum foil‚ and Distilled water. Before the Aluminum
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Digestion and Enzymes – APP. Hypothesis: The enzyme‚ Amylase which is used to break down carbohydrates will work the best when heated at 40°C. Also‚ as the temperature increases the reaction rate of amylase increases too. However‚ the reaction rate of amylase will start decreasing when the temperature reaches the enzyme’s optimal temperature. Many enzymes are specific for a certain substrate. For example‚ lipase is a specific enzyme for fat substrates and protease‚ a specific enzyme for
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UE/2013-14/555 21-05-2013 QUOTATION To The Principal St Anthony’s College Shillong Sl.no | Description of Goods | Brand & Code. | QUANTITY | Price/each | TOTAL AMOUNT | 1 | Glass pipette‚ capacity: 1 ml | Borosil-70060P01 | 1 | 105.00 | 1800/- | 2 | Glass pipette‚ capacity:2ml | Borosil7060P02 | 20 | 116.00 | 2320/- | 3 | Glass pipette‚ capacity:5ml | Borosil7060P05 | 8 | 128.00 | 1024/- | 4 | Glass pipette‚ capacity:10ml | Borosil7060P06
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because the energy will be transferred to the water in the calorimeter because of the Law of Conservation of Energy. Materials: • • • • • • Safety goggles Food samples Food holder Can Calorimeter Ring Stand Ring Clamp • • • • • Diagram of lab setup: Procedures: 1. 2. 3. 4. 5. Get and put on safety goggles. Measure water (approximately 50 ml) and put in can calorimeter. Measure temperature of water. Get food sample and put in food holder. Measure mass of food
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alarm and all exit locations are. Avoid all dangling jewelry and loose clothing. Make sure you read all labels of the chemicals you are using‚ and make sure you know how to operate all equipment before you use it. Must wear closed toe shoes and goggles. 4. A student spills chemicals on his or her skin. Explain the procedure that should be followed. (5 pts.) Rinse any spills on the skin immediately with continuously running water and soap. In the laboratory‚ notify your instructor of the situation
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dentifying the classes of Biomolecules The Introduction A Biomolecule is any molecule that is in the human body. There are four major biomolecules‚ they are Carbohydrates‚ Lipids‚ Proteins‚ and Nucleic Acids and they all have different functions and characteristics to classify an organism. Carbohydrates are the most important source of energy for your body‚ this is mainly sugar. Lipids are molecules that contain hydrocarbons and make up the structure and function of living cells. Nucleic acids
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