Vitamin C in fruit juice- core practical
- Created by: Emling
- Created on: 11-03-19 16:51
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- Vitamin C in Fruit Juice- Core Practical
- Method
- 1. Measure out 1ml cubed of the control Vitamin C solution using the syringe into a beaker
- 2. Wash out burette with DCPIP to remove any other chemicals that have been previously used
- 3. Pour some DCPIP into the burette and measure the starting value
- 4. Put the beaker under the burette
- 5.Start pouring DCPIP into the beaker
- 6. Swirl the beaker once DCPIP enters it
- 7. Measure the finishing value and work out how much DCPIP you used
- Apparatus
- 0.1 DCPIP solution
- Range of fruit juice
- 0.1 Vitamin C solution (control)
- Beaker
- Burette
- Syringe
- Variables
- Independent
- The type of fruit juice we will use
- Dependent
- The amount of Vitamin C in fruit juice
- Control
- Volume of fruit juice
- Need to be the same so they can be compared
- Burette used
- The measurement may be slightly off so the same one will have the same mistake
- Glass wear that you put the fruit juice in
- Type of beaker used will affect how much DCPIP is mixed into the solution
- In a test tube it wont be mixed properly
- Type of beaker used will affect how much DCPIP is mixed into the solution
- When you stop adding DCPIP
- Controlled so results can be accurate
- Volume of fruit juice
- Independent
- Method
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