Table of Contents

Abstract

Purpose/Hypothesis

Literature Review

Materials

Reagents

Drop Volume

Procedure

Calculations

Results

Conclusions

Discussion
Sources of Error

Acknowledgements
Bibliography

Home

Observations


Juice Tested # of drops titrated cup 1 # of drops titrated cup 2 Average # of Drops
Vitamin C standard 15 15 15
Presidents Choice OJ 40 39 40
Equality Wildberry 14 14 14
McCain Orange Juice 24 24 24
Welchade Grape 12 10 11
Equality Apple 15 15 15
Del Monte Five Fruit 17 18 18
Sunny Delight 11 12 12
Master Choice Grapefruit 36 38 37
V8 Splash Tropical Blend 20 18 19
V8 Splash Berry Blend 18 18 18
C'Plus Orange * * *
Five Alive * * *
Tomato Juice * * *

* Note:

The results for these products were inconclusive. I was unable to determine the end point of the titration. I suspected that the carbonation in C' Plus and Five Alive was a part of the problem.

The starch/iodine reagent turned black when C' Plus was added.

The Heinz Tomato Juice caused the reagent to turn black.

Next