# Potentiometric titration lab report - rectoria.unal.edu.co

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Chem 104 - Potentiometric pH Titration

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Experiment Potentiometric Analysis. Experiment 7 Potentiometric Titration. Valdosta State University. Tavon Luis. Compare and learn about Potentiometric Titrator manufacturers on Labcompare. Potentiometric Titrator. potentiometric titration lab report

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I am fitting data on an experiment of potentiometric titration that uses alkali to titrate weak acid in analytical chemistry. I'd like to make a fitting curve that matches the data in order to find the inflection point as known as the titration end-point in chemistry of it. This interpolating function looks OK but since interpolation must tittration all that points, the curve is not that smooth.

Hence, its first and potentiometric titration lab report derivatives are very hackly. In my attempt, I also tried fit data as an implicit function but all fail with either strange errors or wrong outputs.

With the input:. I'm new to use Mathematica English also, I think. If I made any other elementary mistakes, I would be pleased to be pointed out. I think you've misunderstood what the purpose of providing numbers in the third argument of FindFit is.

But Mathematica will still feel free to modify these parameters to get a better fit. This said, a word of warning: this method of using the inverse function is really not ideal because it reverses the role of the dependent and independent variable in your fit.

Typically, when you do an experiment, you treat the measurements of the independent variable the amount of OH ions added, in your case as though they have negligible uncertainty compared to the errors on the dependent variable. By taking the inverse potentiometric titration lab report the function and fitting that, you have effectively inverted the roles of the dependent and independent variables in the fit, and so the least-squares fit that FindFit is using may not be as reliable as it would be if you were doing things "the right way around".

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Asked yesterday. Active yesterday. Viewed times. Is there any way to solve this fitting? Improve this question. Timothy OIL. New contributor.

You already did this with VH and Kw. This may help even if your guess is well away from the true value. Further, you wrote that several parameters are known from the experiment. Then it is a wrong thing to put them into the list of the fitting parameters. In contrast, fix them to their known values and only fit the unknown variables.]

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