Vitamin C Titration

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Table 1: Experimental data for standardization of iodine solution.

Calculation of standardization factor
Standardization factor = (mass of vitamin C titrated) / (Volume of iodine solution used) = (125g) / (41.3ml) = 3.03 mg vitamin C/ml iodine solution
Experiment B: Vitamin C titration using fresh fruit sample to determine the content
The tabulated experimental data for this experiment is shown below (Table 2). In this experiment, the amount of vitamin C was calculated by multiplying the standardization factor with a used iodine solution. That is, the amount of vitamin C in 30ml of 93.54 g mandarin orange juice was 11.514mg.
Table 2: Experimental data for Vitamin C titration using fruit sample (Mandarin orange)
Type of fruit juice Volume
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Table 3: Experimental data from other groups for other fruits
Type of fruits Mass of fruits (g) Mass of vitamin C (mg)
Mandarin Orange 93.54 g 11.514 mg 93.5 g 11.8 mg
Orange 192.42 g 14.025 mg 176.3 g 17.1 mg 166.5 g 16.4 mg
Lime 155.86 g 7.4 mg 178.49 g 6.4
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Of masses) = (93.54+93.5) g / 2 = 93.52 g
Similarly, the Table 4 was created by calculating the average of mass of fruit and vitamin C content in 3 types of fruits.
Table 4: Average mass of fruit and its average mass of vitamin C content
Type of fruits Average mass of fruits Average mass of vitamin C
Mandarin Orange 93.520 g 11.657 mg
Orange 178.407 g 14.842 mg
Lime 172.126 g 7.620 mg

Thus,
• Amount of vitamin C in 30ml of average mass 93.520g-Mandarin juice was 11.657 mg.
• Amount of vitamin C in 30ml of average mass 178.407g-orange juice was 14.842 mg.
• Amount of vitamin C in 30ml of average mass 172.126g-lime juice was 7.620 mg.
Calculation
Amount of vitamin C needed by one person per day = 75 mg
Amount of vitamin C needed by one person for 50 days = 75mg*50 = 3750 mg = 3.75 g
Amount of vitamin C needed by 20 persons fro 50 days = 3750mg*20 = 75000mg = 75 g Therefore, total 75g of vitamin C is needed for 20 men during the 50 days of voyages.

DISCUSSION According to the calculations and data given in results section the following table can be concluded. The following table (Table 5) predicts how many of each fruit should be carried out to fulfill the total amount of vitamin C requirement for 20 men for 50 days. Also, it includes the mass of total fruits that calculated using the class average of mass of fruit and mass of vitamin

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