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Topic: How to calculate the concentration  (Read 2480 times)

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Offline Sdesert

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How to calculate the concentration
« on: August 28, 2013, 05:53:03 PM »
I used 10ml of .2M Fe(NO3)3 in a lab. I know the concentration of Fe(NO3)3 in the stock solution I made is 0.067M. But how do I find the concentration of Fe3+ in the stock solution?
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Offline Borek

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Re: How to calculate the concentration
« Reply #1 on: August 29, 2013, 02:49:54 AM »
You just won todays contest for the most ambiguous question.

Which solution do you call stock - the one you prepared (0.067M), or the one that was given to you (0.2M)?
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Offline kriggy

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Re: How to calculate the concentration
« Reply #2 on: August 29, 2013, 05:32:45 AM »
Do you know what does .2M mean?
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Offline Big-Daddy

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Re: How to calculate the concentration
« Reply #3 on: August 29, 2013, 07:18:03 AM »
Quote from: Sdesert on August 28, 2013, 05:53:03 PM
how do I find the concentration of Fe3+ in the stock solution?

Quote from: Sdesert on August 28, 2013, 05:53:03 PM
I know the concentration of Fe(NO3)3 in the stock solution I made is 0.067M.

c[Fe3+] = c[Fe(NO3)3]
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