I put all the needed information. Part 1: Solution Preparation Part A- Preparati
ID: 228457 • Letter: I
Question
I put all the needed information.
Part 1: Solution Preparation Part A- Preparation of sodium bisulfite solution: Actual amount weighed Calculated Mass of sodium bisulfite required to prepare 100.0 mL of a 0.0200M sodium bisulfite solution. Part B- Preparation of potassium iodate solution: Volume of original 0.100M potassium iodate solution required to prepare 100.0 mL of a 0.0300M solution: volume of water to add to get a total solution volume of 100.0 mL: Part 2: Multiple Measurements of the Rate of Reaction Volume of 0.0200M sodium bisulfite used for each trial:O Volume of 0.0300M potassium iodate used for each trial: Volume of 0.0300M Volume of Time(s) Volume of 0.0200M sodium bisulfite Temperature Trial # potassium iodate water 10.0 mL 10.0 mL 0.0 mL sec 20 C 10.0 mL 10.0 mL 0.0 mL 10.0 mL 10.0 mL aml 18.-12 sec Average Time for Trials 1-3:Explanation / Answer
1. According to Part-3 Measuring reaction rate upon the varing concentration of reactant data, it is found that when increasing the concentration of a reactant, the reaction rate also increases. if this result compares with collision theory, a successful reaction happens when a successful collision happens between reactant molecule. the successful reaction is those that have enough energy to break and create bonds and have a proper geometry. the orientation is necessary to form the activation complex and a short live transition between reactant and products.so that when there are the greater numbers of reactant molecule available to react, there is a greater chance of a successful collision. in this study more concentration KIO3 faster the reaction rate.
2.Yes, Reactant concentration has a greater effect on the rate of reaction if compare this trail 5 and trail 6, it can easily identify. in trail 5 3 ml if reactants took 81 sec whereas in trail 6 10ml reactant took only 34.82 sec.
3.if I had run trails 1-3 with 5.0mL of0.03M KIO3 and 5ml of 0.02M sodium bisulfate, reaction time would not be changed because reaction rate depends on the concentration and temperature since there is no change of concentration so that result same with my result.
4. when I compare the data of Part4 to an average time of Part 2 I found that reaction time decreases with increase in temperature and vice-versa.when this result related to collision theory it can easily understand. reactants can only form products if the successful collision has taken place. this means that the collision must have enough energy and correct orientation. when the temperature is increased, the average kinetic energy of the molecule is also increased so molecule has sufficient energy to suppress the activation energy for the reaction. hence products can easily be formed.