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11 In an experiment to determine hydrolysable tannins in plants by absorption spectroscopy the following results were obtained: Absorbance 0.084 0.183 0.326 0.464 0.643 Concentration, mg ml 0.288 1.420 0.123 0.562 0.921 Use a suitable statistics or spreadsheet program to calculate a quadratic relationship between absorbance and concentration. Using R' and R values, comment on whether the data would be better described by a cubic equation. (Based on Willis, R. B. and Allen, P. R. 1998. Analyst 123: 435)

11 In an experiment to determine hydrolysable tannins in plants by absorption spectroscopy the following results were obtained: Absorbance 0.084 0.183 0.326 0.464 0.643 Concentration, mg ml 0.288 1.420 0.123 0.562 0.921 Use a suitable statistics or spreadsheet program to calculate a quadratic relationship between absorbance and concentration. Using R' and R values, comment on whether the data would be better described by a cubic equation. (Based on Willis, R. B. and Allen, P. R. 1998. Analyst 123: 435)

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Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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11 In an experiment to determine hydrolysable tannins in plants by absorption spectroscopy the following results were obtained: Absorbance 0.084 0.183 0.326 0.464 0.643 Concentration, mg ml 0.123 0.288 0.562 0.921 1.420 Use a suitable statistics or spreadsheet program to calculate a quadratic relationship between absorbance and concentration. Using R' and R values, comment on whether the data would be better described by a cubic equation. (Based on Willis, R. B. and Allen, P. R. 1998. Analyst 123: 435)
Transcribed Image Text:11 In an experiment to determine hydrolysable tannins in plants by absorption spectroscopy the following results were obtained: Absorbance 0.084 0.183 0.326 0.464 0.643 Concentration, mg ml 0.123 0.288 0.562 0.921 1.420 Use a suitable statistics or spreadsheet program to calculate a quadratic relationship between absorbance and concentration. Using R' and R values, comment on whether the data would be better described by a cubic equation. (Based on Willis, R. B. and Allen, P. R. 1998. Analyst 123: 435)
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