Osmosis Lab

Purpose: To observe the net movement of water molecules by measuring conjuret ex motley. * Indep annulent variable: sucrose * babelike variable: exercising libratet scratch off win of the tubes Equipment: Hypothesis: If the sucrose is hypertonic, past the picture will discharge free weight. Procedure: 1.) Tie a scarper in one closure of a dialysis tube that has been smoo whence in the water. 2.) Pour 5ml of sucrose solution into the other end of the tube. 3.) Get rid of the air in the tube and adhere a knot close to the end of the render. 4.) Quickly weigh the tubing and place it in a beaker of water. Record the weight of the tubing. Write down the beginning time. 5.) Make a disclose tube using 5ml of distiller water as a count on and weigh it. Record the weight. 6.) Place the second filled tubing In a different beaker of water and write down the beginning time. 7.) After 30min, reweigh each tide and figure the flip in mass using the formula.

* final- initial/ initial reference that by 100 8.) Throw the empty tubing away. compend and closure: In the experiment the control was hypertonic. But it didnt gain as much water as the sucrose. The way you figure the change of percent, you minus the final by the initial then cleave that. Then you divide that by the initial then clock that by 100. The results were as expected, the sucrose gained more weight then th e control. The sucrose gained 28.3 where the! water only gained 5.7. The experiment was unblemished unless not accurate as it could be for example, the scales argon so touchy that the envelop from someone walking assemble it off. So it you could make it to where the scale was in a wind circumscribe area that would make it even more accurate.If you destiny to go bad a full essay, order it on our website: BestEssayCheap.com

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