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Friday, December 28, 2018

'Potato Osmolarity Lab Essay\r'

'Purpose:\r\nThe purpose of the lab is to get word the osmolarity of the potato create from raw stuff.\r\nBackground Information:\r\nOsmolarity is a concept similar to concentration, except it is the essential deem of solute particles per liter. In this lab we go off draw osmolarity by using saccharose resultant roles and potato ores. This experiment displays hypertonic, hypotonic and isotonic solutions. A hypertonic solution is a solution with a relatively higher(prenominal) concentration, hypotonic cis relatively lower, and isotonic is the selfsame(prenominal).\r\nVariables:\r\n aeonian = sizing of potato means\r\n strong-minded = sucrose molarity\r\nDependent = pack percentage variegate\r\nSafety:\r\n hail lab safety protocol and be careful with cork borer.\r\nProcedure:\r\n1. With a cork borer, cut six summations from a potato. The cores should all be as secretive to the same length as viable: 30-50 mm cores are recommended. 2. Before continuing, crap a table that will show the volume and locoweed of the potato cores originally and after being placed in solutions of 6 different sucrose molarities. 3. regularize mass of potato cores using a laboratory balance. Record in table. 4. interpose separately core in a different test tube labelled with the core’s identification letter and the molarity of the sucrose solution to be placed in the tube 5. wreak a labelled molar solution to each test tube until core is covered. Place foil over each tube and store for 24 hours 6. On the next day, repeat step 3\r\nConclusion/Analysis:\r\nThe osmolarity of the potato core is 0.4 M, I determined this by conclusion where on my graph the percentage change in mass was equivalent to 0. This meant that at that place was no change in mass, the tissue and solution were isotonic, and the molarity of the solution is the same as the osmolarity of the tissue. In this lab, and all experiments, an faultless measurement of mass was crucial to determination the correct results, drift, and osmolarity. The conclusion of this lab was base off of a negative trend on the graph which could have been reorient from inaccurate data.\r\nIn order to advance to a greater extent reliable data I could have done multiple trials in the procedure which would clarify my results and conclusions. Also to buckle under better data a more precise device for measuring the mass of the potato cores could have been used. Also the size of the potato cores could have been more ceaseless to create more accurate data. external of this experiment osmolarity is used in pissing tests to calculate the concentration of certain particles in urine. An osmolality test can also be used for the blood to see the number of solutes present. These tests are then helpful in diagnosing and treating patients.\r\n'

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