• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Finding the vitamin C content of a lemon

Extracts from this document...


________________ INTRODUCTION In our experiment we tested the amount of vitamin C in a certain amount of lemon juice. We did this with the help of PCPIP which is an indicator that shows the presence if C vitamin. For this we used the mentioned indicator, pipette, three eprouvetes, 0.1% of C vitamin solution and lemon juice. First we had to get the volume of 0.1% vitamin C solution that is needed for our amount of PCPIP (2ml) to decolorize. Then we had to determine the volume of lemon juice that is needed to decolorize the same amount PCPIP. ...read more.


We know that 100 ml of the solution contains 0.1 g of vitamin C so with that fact we calculated the amount of grams that can be found in 0.75 ml. We calculated this in the following way: This means that we have 0.75 mg of vitamin C in 0.75 ml of solution. It also means that the indicator (2ml) will turn transparent after we add 0.75 mg of vitamin C. After that we added lemon juice to the third flask with the indicator. ...read more.


We did this in the following way: This means that we have 54.9 mg in an average glass of orange juice. It is also known that the average daily dosage of C vitamin for a person is 60 mg which is almost satisfied by that glass. The results of each group and the average of the results: Group Volume of 0.1% of C solution (ml) Volume of lemon juice (ml) 1 0.71 0.66 2.78 2 0.70 0.60 2.80 3 0.82 0.78 1.3 (not taken into consideration because it clearly stands out) 4 0.90 0.80 2.61 Average 0.75 2.73 Vitamin C content of a lemon Livia BožiÄek 4mm ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Biology essays

  1. experiment vitamin C

    tidak puas hati antara Tom dan Gatsby diwjudkan oleh pengarang antaranya Gatsby akhirnya mendesak Daisy supaya memberitahu Tom yang beliau tidak pernah mencintai suaminya itu. Dalam novel Lorong Midaq, pengarang Naquib Mahfuz juga menimbulkan konflik persengketaan demi kasih sayang. Konflik ini jelas dipaparkan melalui watak Abbas Hilu, Salim Alwan dan

  2. The research is about four different orange juices. The hypothesis is that the homemade ...

    When you have a cold, extra vitamin C will decrease your 'cycle' ( from five days) with one day. Natural vitamin C (kiwis, oranges..) is chosen above vitamin C pills. The most important 'task' of vitamin C is the role of antioxidant, and the help the vitamin gives to the vitamins A and E with fulfilling their antioxidant tasks.

  1. The Effect of Temperature on the Vitamin C Content of Lemon Juice

    the DCPIP is reduced, forming a colourless substance. Therefore the higher the concentration of vitamin C, a smaller volume of vitamin C is needed to decolourise the DCPIP solution. From my results I can infer that changing the temperature had a significant effect on the Vitamin C content of the lemon juice.

  2. How does cooking affect the amount of vitamin C in lemon juice?

    is an example of calculation made: The volume of lemon juice sample used in trial 1 for fresh lemon juice = (45.10 – 3.20) cm3 = 41.90 cm3 Uncertainty = (0.05 + 0.05) cm3 = ± 0.10 cm3 The data calculated can be presented in following table: Lemon Juice Sample Trial Volume of Lemon Juice Sample Used (± 0.10 cm3)

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work