5. In this lab, you continued to add Reagent D to each solution until it turned blue. The purpose was to remove the oxygen to measure how much was left. The more drops you had to add to acquire the blue color, the more oxygen was present in the tube. If the solution turned blue before you added Reagent D what do you think that means?

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Biology

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10 November, 03:17

5. In this lab, you continued to add Reagent D to each solution until it turned blue. The purpose was to remove the oxygen to measure how much was left. The more drops you had to add to acquire the blue color, the more oxygen was present in the tube. If the solution turned blue before you added Reagent D what do you think that means?

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Hailie Donaldson · Answer 1

When the solution turned blue before you added Reagent D this means that the solution does not contain any oxygen. Remember, Reagent D is used to remove the oxygen from the solution and it turns blue when oxygen is removed.