January 24, 2022, 05:52:05 AM
Forum Rules: Read This Before Posting

### Topic: Help With Iodine Clock Reaction Lab...  (Read 2331 times)

0 Members and 1 Guest are viewing this topic.

#### fierceorchid

• New Member
• Posts: 3
• Mole Snacks: +0/-0
##### Help With Iodine Clock Reaction Lab...
« on: July 04, 2014, 03:50:52 AM »
Hi! I have a couple questions about how calculation concentrations (I DO NOT WANT ANSWERS, JUST A PLAN AS TO HOW ABOUT I SHOULD ATTEMPT TO SOLVE)

Some info…
I am given Volume of KIO3 (ml): 10.0, 9.0, 7.0, 5.0, 3.0
I am given Volumbe of H2O (ml): 0.0, 1.0, 3.0, 5.0, 7.0

I also have the time for these reactions

The questions I need help with are:

1. Calculate the [KIO3] after the initial dilution (the original [KIO3] was 0.020M

2. Calculate the [KIO3] in the final mixture for each of the dilutions. Solution A and Solution B each had a volume of 10.0mL prior to mixing.

How abouts would I go to solve each question?

I figured something like: initial concentration x initial volume/final volume

What would be the initial volume? What would be the final volume?

I apologize if the answer is right in front of me but I really do need the help…

Thank you

#### Borek

• Mr. pH
• Deity Member
• Posts: 26925
• Mole Snacks: +1746/-403
• Gender:
• I am known to be occasionally wrong.
##### Re: Help With Iodine Clock Reaction Lab...
« Reply #1 on: July 04, 2014, 04:37:16 AM »
If you mix 9 mL of KIO3 solution with 1 mL of H2O solution, what is the volume you get?
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

#### fierceorchid

• New Member
• Posts: 3
• Mole Snacks: +0/-0
##### Re: Help With Iodine Clock Reaction Lab...
« Reply #2 on: July 04, 2014, 12:26:59 PM »
If you mix 9 mL of KIO3 solution with 1 mL of H2O solution, what is the volume you get?

10ml...

#### Borek

• Mr. pH
• Deity Member
• Posts: 26925
• Mole Snacks: +1746/-403
• Gender:
• I am known to be occasionally wrong.
##### Re: Help With Iodine Clock Reaction Lab...
« Reply #3 on: July 05, 2014, 02:49:27 AM »
And that's the final volume.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

#### fierceorchid

• New Member
• Posts: 3
• Mole Snacks: +0/-0
##### Re: Help With Iodine Clock Reaction Lab...
« Reply #4 on: July 05, 2014, 02:59:32 AM »
And that's the final volume.

Thanks