2CLabManual201303

What is the standard deviation of the mass of

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tablet for each trial. Do this by scaling up to find the amount (mg) of ascorbic acid in your 250 mL flask. What is your calculated mass of ascorbic acid in the Vitamin C tablet, for each trial? What is the average for your determination of the mass of ascorbic acid in the Vitamin C tablet? What is the standard deviation of the mass of ascorbic acid in the Vitamin C tablet? In the final part of the experiment, you were asked to examine the protective ability of oxalic acid in preventing the oxidative degradation of Vitamin C by catalytic ferric ions. At the beginning of the experiment you or one of your partners prepared two solutions containing ascorbic acid and ferric ions. In one of these solutions oxalic acid was added and the two solutions were set aside in open containers. When you titrated a sample from each of these solutions, one containing oxalic acid and one without oxalic acid, which solution required more NBS to reach the endpoint in the titration? How many trials did you complete for the analysis of the ascorbic acid/ferr...
View Full Document

Ask a homework question - tutors are online