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Wednesday, January 22, 2014

Osmosis In Potatoes

Investigate what effect different levels of concentration of sucrose suffice have on the movement of water via osmosis in unclouded potato vinees. EQUIPMENT saccharose resolvent (0.2M, 0.4M, 0.6M, 0.8M, 1.0M) Distilled water (0.0M) Potatoes Cork woodborer Boiling undergrounds Boiling pipework rack Stop clock Balance (0.0 decimal places) Tweezers Measuring cylinder Ruler rule manage 6 pieces of potato with a cork borer and racetrack them to the corresponding duration of approximately 5 cm (measure with a ruler) Measure out 25cm³ of water and separately of the sucrose issues, victimisation the measuring cylinder. The measurements for the resolves have to be perfect as to not change the outcome of the experiment. Pour into simmering tubes, bounteous the mingled concentrations. Label boiling tubes with concentration of sucrose solution affiance measurements of each potato tube ( hatful) on the par wholeelism and point in a suitable ta ble. Always use the same balance to weigh the mass of the each tube as measurements may differ slightly between scales. The surface playing field of the potato tubes will be kept the same by having all the tubes the same size. They must be kept the same because the measurement of surface area exposed to the solution may chance on the rate of osmosis. Be sure to furrow which strength solution is put in each. Place potatoes in sucrose solution and leave for 30 minutes, using the stopwatch for accurate timings. shift potato tubes and pat off exorbitance sucrose solution with a paper towel, in the graze that they came out of the boiling tubes as to not confuse which tube came from which solution. Take measurements of mass and length of each tube and inscribe appearance in a suitable table. This experiment should so be reiterate to ensure a fair essay as the results give the bounce then be compared. . presage It could be predicted that as the concentratio n of the sucrose increases, the mass and len! gth of the potato tube will decrease. The think behind this, is that the higher(prenominal) the concentration of sucrose in...If you want to win a practiced essay, order it on our website: OrderCustomPaper.com

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