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June 18, 2019, 07:10:52 am

Author Topic: PRACTICAL HELP  (Read 126 times)  Share 

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« on: April 18, 2019, 04:30:48 pm »
I am having a hard time explaining some prac results I got in class and I was hoping I could have some help from you brainiacs.
I can kind of get the first three, but I have no CLUE why Vial D was pink-red.
Just some background info:
  • Red= 6.2-8.2 pH Yellow= <6.2 pH Pink= >8.2 pH
  • The Alginate balls contain bakers yeast, which respires anaerobically. When they respire, they produce carbon dioxide which makes the solution they are in acidic
These are the results everyone had.
I have attached the method and my results.
Many thanks