Please help me with question number 1 Post-Laboratory Questions 1. R eaction rat
ID: 580066 • Letter: P
Question
Please help me with question number 1
Post-Laboratory Questions 1. R eaction rate laws are frequently used to investigate reaction mechanisms. Would your results to this experiment be consistent with either or both of the following mechanisms? A. single step bimolecular reaction between dye and NaCIO slow unimolecular decomposition of the dye followed by a rapid electron transfer reaction with CIO ion. B. Which mechanism is correct? Can you be certain that a mechanism is correct? 2. If instead of using the blue dye, we had used a red dye, what changes would you make in your experimental procedure to determine the rate law for the oxidation of the red dye by sodium hypochlorite (be specific)? 3. If the experiment were carried out at 40 C rather than at room temperat What differences would you expect to observe? ith resnect to the dve?Explanation / Answer
1)
answer is
a. single step bimolecular reaction between dye and NaClO
A bimolecular reaction involves the collision of two particles. Bimolecular reactions are common in organic reactions such as nucleophilic substitution.
The rate of reaction depends on the product of the concentrations of both species involved, which makes bimolecular reactions second-order reactions.
In experiment we determined the rate that bleach, an aqueous solution of sodium hypochlorite(NaClO) will oxidize a colored food dye. the rate law= - change in dye/ change in t
the rate law= k[Dye]^a[ClO]^b
NaOCl + Fast Green FCF -----> Colorless products
NaOCl + FD&C Red ------> Colorless products
The rate law for reaction
Rate =k[NaOCl]x [Green]y
Rate =k[NaOCl]u [Red]v