Lab Report

diffusion and Osmosis Pre-Lab Questions: 1. Why is ace called an index finger? one is called an indicator because it indicates cloak change. 2. What does iodine sieve for? Iodine test for the presence/existence of starch. 3. How do you know there is a official subject? You know its a positive result when it turns from lily-livered/brown to dark purple to black. 4. What is diffusion? Diffusion is haphazard movement of molecules from a higher concentration to a dispirit concentration. 5. What is osmosis? Osmosis is diffusion of water. Hypothesis: When adding a closed old bag of amylum & Glucose (SG) into a mixture of distilled water & Iodine, the change in color pull up stakes be perceptible because as long as the amylum & Glucose is in affair with the water & Iodine, the more it will change over time. data Table: #1 offset Color 5 Mins. 10 Mins. 15 Mins. 20 Mins. root word in Beaker Orange-Brown Orange-Brown ------ -------- -------- --------- --------- --------- --------- -----> settlement in Bag go by Foggy Clear clean-living Yellow Tint brightness Pink Same sapless Purple Same Same w/ Black baksheesh Same SG W #2 sign aggregate (g) net Mass (g) Diff. In Mass (g) % motley in Mass Mass of piping 18.6 19.5 18.6 19.4 0 -1 0 -.51 #3 At the Start At the End Glucose Strip Conc.

& Color of Tube 1000 0 3000 300 Glucose Strip! Conc. & Color of Beaker ? Clear Black Black Questions: 1. HIGH Time ? LOW 2. Glucose and Starch 3. Iodine and Distilled Water 4. Iodine 5. Water 6. Glucose, Starch, Water and Iodine 7. Water 8. Glucose and Starch 9. Color Change 10. Solution in Beaker Results: Solution initial Mass (g) Final Mass (g) disagreement % Change Average DW 16.8 16.4 .4 -2.31 .2M 19.59...If you need to get a sufficient essay, order it on our website: BestEssayCheap.com

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