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Get Full Access to Quantitative Chemical Analysis - 8 Edition - Chapter 4 - Problem 4-36
Get Full Access to Quantitative Chemical Analysis - 8 Edition - Chapter 4 - Problem 4-36

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# Confidence interval for calibration curve. To use a calibration curve based on n points ISBN: 9781429218153 475

## Solution for problem 4-36 Chapter 4

Quantitative Chemical Analysis | 8th Edition

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Problem 4-36

Confidence interval for calibration curve. To use a calibration curve based on n points, we measure a new value of y and calculate the corresponding value of x. The one-standard-deviation uncertainty in x, sx, is given by Equation 4-27. We express a confidence interval for x, using Students t: where t is taken from Table 4-2 for n 2 degrees of freedom. A calibration curve based on n 10 known points was used to measure the protein in an unknown. The results were protein 15.22 (0.46) g, where sx 0.46 g. Find the 90% and 99% confidence intervals for protein in the unknown. C

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• Cation- missing e-(positive charge) • anion- more e- than neutral atom(negative charge) • neutral atom- # protons = # e- • matter- atoms...building blocks nucleus- made of p+ & neutrons ‣ electron cloud of e-'s • isotopes- 2 atoms of the same element w dif # of neutrons,so have dif mass # H vs.D dif reactivity C C • nmr- nuclear magnetic residence spectroscopy • rows(periods) & columns(groups) on PT elements in same row are similar size elements in same column have similar reactivity (electronic & chemical) ‣ Li,Na,K:want to be +1,counter cations..want to give up 1e- • ex) Li --> Li+ + e- ‣ Mg:can give up 2 e-...electropositive,wants to be 2+ ‣ gp 4 & on are more electronegativ

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##### ISBN: 9781429218153

Since the solution to 4-36 from 4 chapter was answered, more than 237 students have viewed the full step-by-step answer. The answer to “Confidence interval for calibration curve. To use a calibration curve based on n points, we measure a new value of y and calculate the corresponding value of x. The one-standard-deviation uncertainty in x, sx, is given by Equation 4-27. We express a confidence interval for x, using Students t: where t is taken from Table 4-2 for n 2 degrees of freedom. A calibration curve based on n 10 known points was used to measure the protein in an unknown. The results were protein 15.22 (0.46) g, where sx 0.46 g. Find the 90% and 99% confidence intervals for protein in the unknown. C” is broken down into a number of easy to follow steps, and 104 words. This textbook survival guide was created for the textbook: Quantitative Chemical Analysis, edition: 8. Quantitative Chemical Analysis was written by and is associated to the ISBN: 9781429218153. This full solution covers the following key subjects: . This expansive textbook survival guide covers 55 chapters, and 1224 solutions. The full step-by-step solution to problem: 4-36 from chapter: 4 was answered by , our top Chemistry solution expert on 03/16/18, 04:33PM.

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