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Old 11-23-2002, 02:51 PM   #5
Davros
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Join Date: January 7, 2001
Location: Mandurah, West Australia
Age: 61
Posts: 5,073
Quote:
Originally posted by WillowIX:
Ok n=V*C right. And you want 750ml solution that is 0,5M. Then you need 0,75*0,5=0,375 mole. Now you know how much you need from the original HNO3. Using the first formula V=n/C --> V=0,325/16= 0,023L or 23ml.

Edit: 3 answers. Should help you
Damn - you edited before I could quote you - I was gunna suggest you get yourself a new calculator, because 0.75 * 0.5 is NOT 0.325 , and 0.325 / 16 is NOT 0.024

But your method is good

Edit :
Hold on, I see you only changed the first to 0.375, not the second (still 0.325) and now 0.325 / 16 is NOT 0.023

[ 11-23-2002, 02:55 PM: Message edited by: Davros ]
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