Lab- Science Report

November 12th, 2008 Purpose: To change independent variables and countenance the response run low in a goal while of 45 seconds. surmise: I think that I provoke change the tempo of reaction to go along either slower or flying by changing the temperature of the piss, the concentration of the water. Also, by changing the juncture up of the pad, and the surface study of it (crushed, not crushed). Most probable with little(prenominal) water, and more tablet, the fast the reaction pass on go, and bench vise versa. I expect that if the tablet is crushed, the reaction will occur quicker compared to a tablet that is not crushed. Materials: In revisal to do this examine you must have: -safety goggles -2 Alka- dad tablets -plastic film cannister - gradatory cylinder (at least measures whizz hundred mL) -water/ice water -watch/timer -thermometer Procedure: assume these directions to train a safe a successful tense come out: - gift your safety goggles on -Lay out all materials on a lab clean and vindicated table -Fill the graduated cylinder with water with your choice of cadence -Take temperature of the water -Pour the water into the plastic canister -Crush or generate off a part of the Alka-Seltzer tablet -Put tablet into the canister with water - rapidly seal the lid to the canister and traffic circle back -Time your experiment and wait for blast off Observations: As my experiment failed, I used anothers data, as I will describe what they did in their experiment to fall these results Before the experiment: Taking in consideration the factors that can affect the regulate of a chemical reaction and Analyzing and Discussing: abstract and Evaluation d) The time of reactions depended upon multiple variables. The size and surface area (crushed, not crushed) seemed to have a major affect on the results. If too overmuch of the Alka-Seltzer tablet was put in, then the reaction wo uld occur slower. Also, if the tablet were c! rushed it would blast in less then 45 seconds. Depending...If you want to get a overflowing essay, order it on our website: BestEssayCheap.com

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