Find the respiratory quotient from the equation…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Find the respiratory quotient from the equation.
- Which of the two is a carbohydrate, and which is an organic acid?
Need a reminder? The key ideaShow
. It is for carbohydrate, about for protein, for fat, and above for organic acids. KOH takes in carbon dioxide, so the fall of volume in a tube with KOH is the oxygen taken in.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) .
Step 2. (b) .
Step 3. (c) Glucose is a carbohydrate. Oxalic acid is an organic acid.
Answer: for glucose; for oxalic acid. The organic acid has the RQ above .
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