One of the most important experimental design considerations for kinetic experim
ID: 538750 • Letter: O
Question
One of the most important experimental design considerations for kinetic experiments is the initial concentration of each reactant. What initial concentration (in mol/L) do you propose using for 4-methylanisole? for hypobromous acid (HOBr)? What factors should be taken into account when selecting initial concentrations for each reactant? b) Besides initial concentrations of reactants, what other solution conditions must be selected (and, ideally, held constant) for a kinetic experiment such as this.Explanation / Answer
For the given reaction,
a) U nder kinetic controlled experiment the comcentration of reactant should be lower. the concentration can be far lesser than 1.0 mmol/L. For hydrobromous acid when the concentration of methylanisole is kept constant should be about 0.5 mmol/L. The factors that affect the selection criteria for initial concentration is at lower concentrations the reaction follows a first order kinetics and is easy to follow.
b) Other than the substrate concentration, we can reduce the temperature of the reaction to get kinetic product formation instead of thermodynamic more stable product formed in the reaction.
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