Lab- Science Report

November 12th, 2008 Purpose: To change independent variables and countenance the answer reach come to the fore in a goal while of 45 seconds. supposition: I think that I peck change the tempo of reaction to come up either slower or straightaway by changing the temperature of the piss, the concentration of the water. Also, by changing the contribute up of the pad, and the surface playing field of it (crushed, not crushed). Most apparent with less(prenominal)(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 ordain to do this examine you must have: -safety goggles -2 Alka- quinine water tablets -plastic film cannister - gradatory cylinder (at least measures superstar hundred mL) -water/ice water -watch/timer -thermometer Procedure: discover these directions to train a safe a successful test out: - gift your safety goggles on -Lay out all materials on a lab clean and absolve table -Fill the graduated cylinder with water with your choice of measure -Take temperature of the water -Pour the water into the plastic canister -Crush or submit off a part of the Alka-Seltzer tablet -Put tablet into the canister with water - rapidly seal the lid to the canister and impersonate 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 grasp these results Before the experiment: Taking in consideration the! factors that can affect the regulate of a chemical reaction and Analyzing and Discussing: epitome 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 would occur slower. Also, if the tablet were crushed it would blast in less then 45 seconds. Depending...If you want to get a serious essay, order it on our website: BestEssayCheap.com

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