determining k
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Re: determining k
I assume by trials, you mean the problems that have different experiment charts. For a problem like this, you can use any of them as long as all of the information can be filled in except k.
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Re: determining k
Yeah, you just need to make sure that the concentration is the same for every other reactant than the one you're looking at. For example, in a reaction with reactants A, B, and C, if you're trying to figure out how [A] affects the rate of the reaction, you should compare two trials where [B] is the same AND [C] is the same.
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Re: determining k
As long as you have the corresponding reaction rate and the concentrations of the reactants/products, you can use any trial to determine k.
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Re: determining k
To determine k, you can use any trial but the same set of data in the equation rate = k [A]^x [B]^y, x and y being the order of the reactants.
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Re: determining k
When determining K, you are allowed to use any trial as long as you know the rates of each concentration. Once you figure out the exponents of the reactant concentrations, you are allowed to use any trial to plug in the concentrations and rate of the trail to find the rate constant.
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Re: determining k
When determining K, you are allowed to use any trial as long as you know the orders of each concentration. Once you figure out the exponents of the reactant concentrations (respective order), you are allowed to use any trial to plug in the concentrations and rate of the trail to find the rate constant.
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Re: determining k
Professor Lavelle also said that when doing laboratory work, it's good practice to find the k's from all the trials and average them because of experimental error. However, in a textbook problem, it's safe to assume that all the k values from each trial will be the same.
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Re: determining k
Yes, you may use any trial to plug in the rate and concentration for each substance AFTER determining the rate law equation (rate=k[A]^n[B]^m)
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Re: determining k
Yes, you can use any trial to determine k but the exponents must be correct to the reactants concentrations at there respective order.
Re: determining k
When determining k, you can choose any trial to plug in values as long as the same trial's data is used for all values in the equation.
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