Question textWhen writing an aim, it should be in the format of the Goal (what do you want to achieve) and the Means (how you plan to achieve it). Read over the information for this exercise in your lab manual to assist you with completing the aim of this experiment. Aim: To determine the Answer 1 Question 2[input] for the iodine clock experiment by experimentally determining the Answer 2 Question 2[input] for each reagent in the iodine clock reaction.

Question

BlackTom AI · Accepted Answer

In this item, the aim is described in terms of what you want to achieve (the Goal) and how you will achieve it (the Means) for the iodine clock experiment. The two blanked terms relate to how chemists mathematically describe reaction rates.

First blank reasoning (Answer 1: rate law): The rate law is the mathematical expression that relates the rate of a reaction to the concentrations of the reactants, typically in the form rate = k[A]^m[B]^n... where k is the rate constant and m, n are the orders with respect to each reactant. Rewriting the aim as determining the rate law makes sense because the experiment is designed to quantify how quickly the clock-reaction proceeds under different conditions, which is exactly what determining a rate law accomplishes. Hence, filling the first blank with rate law aligns with the goal of quantifying how concentration changes drive the reaction speed.

Second blank reasoning (Answer 2: order of reaction): The order of reaction refers to the exponents (m, n, etc.) in the rate law and indicates how sensitive the rate is to changes in each reactant’s concentration. The aim mentions determining this quantity “for each reagent,” which directly points to finding the order of reaction with respect to each reactant. In the iodine clock reaction, students typically vary concentrations of each reagent and observe how the rate changes, allowing them to deduce the reaction order with respect to each component. Therefore, filling the second blank with order of reaction correctly specifies what is being experimentally determined for each reagent.

Overall, the combination of rate law (the relationship between rate and concentrations) and order of reaction (the exponents that define that relationship for each reagent) provides the complete framework the aim seeks to establish for the iodine clock experiment. This pairing supports a coherent experimental objective: quantify how changes in reagent concentrations affect the reaction rate and precisely extract the exponents that define those effects.

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