Reagents & Apparatus: 20 mL Sulfuric acid 1M‚ 2g Copper (II) carbonate‚ Bunsen burner‚ Tripod stand‚ Gauze‚ White tile‚ Filter funnel and filter paper‚ Glass rod‚ Spatula‚ 100 mL Glass beaker‚ Conical flask 250 mL‚ Petri dish‚ Balance Procedure: Stage 1 1 Add 20 mL 1M sulfuric acid in a 100 mL beaker. Heat carefully on the tripod with a blue flame until nearly boiling. 2 When the acid is hot enough‚ turn off the Bunsen burner and stand the beaker on a white
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Osmolarity TITTLE: practical of estimation of osmolarity in tissues by bathing samples in hypertonic and hypotonic solutions. INTRODUCTION: Osmolarity is the osmolar concentration of plasma and is proportional to the number of particles per liter of solutions shown as (mmol/l). It is derived from the measures Na+ and K+‚ urea and glucose concentrations. Since the volume of solution changes with the amount of solute added also it change in temperature and pressure‚ osmolarity we can say it’s
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CERTIFICATE ACKNOWLEDGEMENTS "There are times when silence speaks so much more loudly than words of praise to only as good as belittle a person‚ whose words do not express‚ but only put a veneer over true feelings‚ which are of gratitude at this point of time." I would like to express my sincere gratitude to my chemistry teachers Mrs. Meenakshi‚ Mrs. Sonali and Mrs. Shampa for their vital support‚ guidance and encouragement - without which this project would not have come forth. I would
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Once the experiment was over the results showed that the head end was able to retain the learning by classical condition better than the tail end could. There were more positive reactions with the head compared to the tail. It was not a drastic difference‚ but the head it was able to retain the learning slightly better than the tail end did. Not everything goes as planned so there were some experiment where the planarian was lost or it died. Some planaria did not retain the information before it
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g/mole) diffused with a faster rate (dave=20.25cm) as compared to HCl which has a greater molecular weight (36.4611g/mole) and diffused with dave=16.38 cm. A white ring of smoke formed closer to the heavier substance. The agar-water gel set-up used a petri-dish of agar-water gel with three wells on it. A drop of potassium permanganate (KMnO4) was put on one well‚ a drop of potassium dichromate (K2Cr2O7) was put on the other and a drop of methylene blue was put on the third well. Methylene blue which has
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this helps make the microorganisms virulent‚ or able to cause disease. Because of the capsule‚ this strain of S. Pneumonia grows as smooth-edged (S) colonies when grown in a Petri dish. The second strain of S. Pneumonia lacks the polysaccharide capsule and does not cause disease. When grown in a Petri dish‚ the second strain forms rough-edged R colonies Griffith knew that mice infected with the S bacteria grew sick‚ and died‚ while mice infected with the R bacteria were not harmed
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Formal lab report: Abstarct: The Purpose of this experiment was to perform Agrobacterium-mediated transformation in Wild type Arabidopsis thaliana Columbia by using somatic plant transformation method. The whole process lasted for over a period of 11 weeks and we were successful in getting transformed plants. Agrobacterium tumefaciens strain containing pMP90 (Ti-helper) plasmid and pCAMBIA1391 (T-DNA) plasmid was used for this plant transformation. pCAMBIA1391 plasmid was constructed by cloning Brassica
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cylinders of potato were removed from a petri-dish and placed on the tile provided. One end of each was cut to a 90 degree angle‚ then cut all to the same length of 30mm 4) One potato cylinder was put in each test-tube and was covered with 3m masking tape provided‚ then the exact time was labeled: 11:39 a.m. 5) Potato Tissue was left for approximately 21 hours and removed from the test-tube afterwards. 6) The contents of each test-tube were poured into a petri-dish and the cylinder removed and blotted
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pipette‚ transfer it to the centre of a small‚ dry Petri dish. With filter paper remove excess water from around the specimen so that it is completely stranded. 2. With a seeker place a small blob of silicone grease onto the floor of the Petri dish. Then wipe the needle clean and use it to gently push the posterior end of the animal into the grease so that it is firmly anchored. Now fill the Petri dish with water at 300C. 3. Place the Petri dish on the stage of a microscope and observe the animal
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In-vitro fertilization. Meaning that they have to overcome a process by which the egg is fertilized by the sperm outside of the body‚ and placed into a petri dish. Then they would have to monitor and stimulate a woman’s ovulatory process‚ and then would have to remove an egg from the woman’s ovaries and let the sperm fertilize with the egg within the petri dish. Then they would have to remove a single cell from the embryo within the first 5 days after its creation. Then after that‚ they would have to test
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