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# How to prepare this solution ?

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### #1 Biog

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Posted 31 May 2010 - 12:29 PM

Dear all,

I'm confusing about the preparation of a solution I should to use.
I have a solution NaCl 12% and I have to prepare 9 % in 8 ml.
How can I do ?
I don't thing the 3 basis rule (C1V1=C2V2) would work, right?
Thank you for help

### #2 Gerard

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Posted 31 May 2010 - 12:33 PM

Biog, on May 31 2010, 10:29 PM, said:

I don't thing the 3 basis rule (C1V1=C2V2) would work, right?

why not?
Ockham's razor
Pluralitas non est ponenda sine necessitate
-- "You must assume no plural without necessity".

### #3 Biog

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Posted 31 May 2010 - 01:36 PM

Gerard, on May 31 2010, 01:33 PM, said:

Biog, on May 31 2010, 10:29 PM, said:

I don't thing the 3 basis rule (C1V1=C2V2) would work, right?

why not?

I don't know, just doubt !
Skeptical !
But definitely it could be used, no?

### #4 mdfenko

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Posted 01 June 2010 - 10:40 AM

of course it can:

12%xv1=9%x8ml

v1=(9x8)/12=6ml
talent does what it can
genius does what it must
i do what i get paid to do

### #5 Biog

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Posted 02 June 2010 - 09:11 AM

mdfenko, on Jun 1 2010, 11:40 AM, said:

of course it can:

12%xv1=9%x8ml

v1=(9x8)/12=6ml

Yes, that is right. Thank you.