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Chemistry 18 Online
OpenStudy (anonymous):

Design two experiments that will compare two different factors that may affect the rate of the Alka-Seltzer reaction. Possible factors to be investigated include temperature, surface area, agitation, and amount of reactants. Remember to make sure there is only one independent variable in your experimental design for each experiment. You can only test one factor at a time. You will need to have two separate procedures for each factor tested. Be sure to write a detailed procedure for each lab design so that the same procedure can be followed accurately by anyone who reads it. Include details

OpenStudy (anonymous):

Temperature and surface area would be the simplest to test for. Surface are can be changed by splitting the tablet into different sizes, so you could test with a whole tablet, 2 half tablets, a roughly crushed tablet and a completely powdered tablet. For temperature just measure the period for reaction with various solute temperatures.

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