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Author Topic: Kinetics Lab Help  (Read 264 times)

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vonc01

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Kinetics Lab Help
« on: February 21, 2019, 04:40:36 PM »

I have this lab due tomorrow and I'm a bit confused on calculating the concentrations.

Background: 

It was a 2 stage reaction equations are as followed:

(1) Io3-(aq) + 3HSO3-(aq)  :rarrow: I -(aq) + 3SO42-(aq) + 3H+(aq)
(2) 5I-(aq) + 6H+(aq) IO3-(aq) :rarrow: 3I2(aq) + 3H2O

We had  had 2 Solutions named A and B, we're given that Solution A has IO3- ion and Solution B has  3HSO3- ion and soluble starch.

We would then mix A and B (10 mL each) thoroughly and time how long it would take to react, we repeated this multiple times diluting Solution A with distilled water with ratios of 9:1, 8:2, and so on to 5:5.  My teacher wants me to find the concentration of IO3- ions in the 20 mL mixture we created, and I have zero clue where to start.  Thanks for any help.
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