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A. Standardization of lodine Solution Sample Mass of pure ascorbic acid sample, g I II · 100g .100g

A. Standardization of lodine Solution Sample Mass of pure ascorbic acid sample, g I II · 100g .100g

Chemistry
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
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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348 Experiment 43 Analysis for Vitamin C B. Analysis of an Unknown Sample Containing Vitamin C Sample Mass or volume of unknown [g or mL] Initial buret reading [mL] Final buret reading [mL] Volume of 1₂ titrant added [mL] Moles of iodine added Moles of vitamin C in sample Mass of vitamin C in sample [mg] Concentration of vitamin C: %mass in solid sample or [mg/100 mL] in liquid sample Mean concentration Standard deviation % mass or [mg/100 mL] %mass or [mg/100 mL] I · 100g 100g 50mL 38mL 38.5ml 20mL 11.5mL 18mL II Amount of sample that will furnish nonpregnant female RDI, mL or mg III
Transcribed Image Text:348 Experiment 43 Analysis for Vitamin C B. Analysis of an Unknown Sample Containing Vitamin C Sample Mass or volume of unknown [g or mL] Initial buret reading [mL] Final buret reading [mL] Volume of 1₂ titrant added [mL] Moles of iodine added Moles of vitamin C in sample Mass of vitamin C in sample [mg] Concentration of vitamin C: %mass in solid sample or [mg/100 mL] in liquid sample Mean concentration Standard deviation % mass or [mg/100 mL] %mass or [mg/100 mL] I · 100g 100g 50mL 38mL 38.5ml 20mL 11.5mL 18mL II Amount of sample that will furnish nonpregnant female RDI, mL or mg III
A. Standardization of lodine Solution Sample Mass of pure ascorbic acid sample, g Moles of ascorbic acid (MM = 176.14 g/mol) Initial buret reading [mL] Final buret reading [mL] Volume of I, titrant added [mL] Moles of I₂ consumed Molarity of 12 [moles/L] Titer of 1₂ [(mg Asc)/(mL I₂ solution)] I II •100g 100g 50mL 34mL 39mL 22mL 11mL 17mL
Transcribed Image Text:A. Standardization of lodine Solution Sample Mass of pure ascorbic acid sample, g Moles of ascorbic acid (MM = 176.14 g/mol) Initial buret reading [mL] Final buret reading [mL] Volume of I, titrant added [mL] Moles of I₂ consumed Molarity of 12 [moles/L] Titer of 1₂ [(mg Asc)/(mL I₂ solution)] I II •100g 100g 50mL 34mL 39mL 22mL 11mL 17mL
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