You need to know the atomic weight of NaOH He used that as an example
because it's relatively straight forward.
Bob Shell wrote:
> On Feb 10, 2007, at 2:53 PM, David Weiss wrote:
>
>
>> The word "mole" refers to a number of particles, it is not a
>> concentration unit. Molarity is a concentration unit, equal to
>> moles of
>> solute per liter of solution. If you have a solution of 0.100M NaOH,
>> that is 0.100 moles of NaOH per liter of solution, that is 4.00
>> grams of
>> NaOH in a liter of solution. Molality is used quite a bit too.
>>
>
>
> OK. How did you get from 0.100 moles per liter to 4.00 grams per
> liter? That's the part I'm not getting.
>
> Bob
>
>
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