Kinetic lab report Example | Topics and Well Written Essays - 500 words

Kinetic - Lab Report Example the amount of time for a given amount of product, sulfur, to form). Recall that a rate for a chemical reaction is expressed as an amount of product formed (or reactant used up) divided by the time interval of the change: The aim of my experiment is to determine the dependence of the initial rate of reaction on the initial concentration of thiosulfate ion. The concentration of the other reactant, H+, will be kept constant. A higher initial concentration of thiosulfate will lead to faster rate of reaction, since an increase in the number of thiosulfate ions per unit volume will lead to higher probability for successful collision. (2) A solution of 1 M sodium thiosulfate, is available (center bench or hood). Add 70 mL of this solution to 210 mL of water to make a solution approximately 0.25 M in thiosulfate. We will refer to this as your "stock thiosulfate solution". (7) The experiment is now repeated four more times, using progressively more dilute thiosulfate solutions. Note, however, that for each experiment, the disappearance of the "X" corresponds to formation of the same amount of precipitated sulfur in the reaction mixture. The diluted solutions are prepared as follows: The collected data indicates that the rate of reaction is increasing with increasing amounts of thiosulfate solution. An increase in the amount of thiosulfate augments the amount of particles available in solution to react. Hence there is a larger probability for reactants to react and so the rate of collisions increases which in turn increases the rate of reaction. Moreover as it is assumed that the total amount of sulfur created during the reaction remains constant, it can be implied that the usage of reactants during the reaction is small which supports the idea that the concentration of reactants is constant throughout the reaction. Given the two unique sets of data, the stock solution