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Topic: NaOH  (Read 3967 times)

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Offline amaranth

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NaOH
« on: March 18, 2008, 06:29:17 PM »
Help 5M NaOH requires 200gms per litre 32% reqiures 224gms per litre can anyone confirm
thanks

Offline ARGOS++

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Re: NaOH
« Reply #1 on: March 18, 2008, 06:54:20 PM »

Dear Amaranth;

The first part is ok, because MW of NaOH is 40.0 g/mole.
Second part is completely wrong, if for % w/v or % w/w!
For % w/v it should be already clear, and for % w/w you need the density for 32% w/w ( = 1.350 g/ml).

Good Luck!
                    ARGOS++


Offline agrobert

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Re: NaOH
« Reply #2 on: March 18, 2008, 06:56:14 PM »
First statement good
Second statement I assume you mean weight percent???
Show your work for your 32% 1 L solution

In the future please post your questions in the form of questions and clearly show your work.
In the realm of scientific observation, luck is only granted to those who are prepared. -Louis Pasteur

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