Rate Of Reaction Lab

The rate of a chemical reaction is the measure of change in concentration of the reactants of the change in concentration of the products per time. The rate of a chemical reaction is influenced by the concentration of the reactants, temperature, and the presence or absence of a catalyst. Through finding the time and concentrations of the reactants, it is possible to find the rate of reaction and k. To perform this experiment, you need two erlenmeyer flasks,a timer, a LabQuest with a temperature probe, two beakers, ice, distilled water, starch solution, 0.200 M of KI, 0.005 M of Na2S2O3, 0.200 M of KNO3, 0.100 M of K2S2O8, 0.100 M of (NH4)2SO4, and 0.100M Cu(NO3)2. Students will first mix a specific amount of a combination of different concentrations of instructed chemicals and wait for the mixture to turn blue. During this time, students will swirl
When the solution turns blue, students will stop the timer and record the time it took for the mixture to turn blue. The students will make seven mixtures with differing amounts of concentration, and then see the effects of temperature and catalysts on the mixture. To find the effects of temperature, students will first immerse the erlenmeyer flasks that holds the reactants in ice water. When the temperature goes below ten degrees Celsius, students will then mix the chemicals together and place the mixture in the ice bath. Students will record the time it took for the solution to change color. For the catalyst, students will set up the experiment similarly to the earlier seven mixtures, but this run, students will also add five drops of 0.100 M of Cu(NO3)2 solution. The students will then mix the chemicals together and measure the time it took for the reaction to occur. After finding all the rate of reactions of