- #1
Roxy
- 52
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We did an experiment where we mixed Solution A with Solution B and found out the time. These are my results:
Solution A (0.020 mol/L potassium iodate solution plus distilled water)
10 drops potassium iodate plus 0 drops distilled water
9 drops potassium iodate plus 1 drops distilled water
8 drops potassium iodate plus 2 drops distilled water
7 drops potassium iodate plus 3 drops distilled water
Solution B (0.001 mol/L sodium bisulfate/ hydrochloric acid/starch)
10 drops
10 drops
10 drops
10 drops
Time is took to turn blue (s)
9
13
10
9
I need help with these questions:
1. How do I find concentration of potassium iodate? (do I divide 0.020 mol/L by something?)
2. And to find order of reaction with respect to potassium iodate I graph 1/time vs. concentration and square or cube it until I get a straight line right? But why do I want a straight line?
Solution A (0.020 mol/L potassium iodate solution plus distilled water)
10 drops potassium iodate plus 0 drops distilled water
9 drops potassium iodate plus 1 drops distilled water
8 drops potassium iodate plus 2 drops distilled water
7 drops potassium iodate plus 3 drops distilled water
Solution B (0.001 mol/L sodium bisulfate/ hydrochloric acid/starch)
10 drops
10 drops
10 drops
10 drops
Time is took to turn blue (s)
9
13
10
9
I need help with these questions:
1. How do I find concentration of potassium iodate? (do I divide 0.020 mol/L by something?)
2. And to find order of reaction with respect to potassium iodate I graph 1/time vs. concentration and square or cube it until I get a straight line right? But why do I want a straight line?