chemistry help

Nicole Churchill (chur@minyos.its.rmit.EDU.AU)
Wed, 20 Aug 1997 14:22:05 +1000 (EST)

could someone please help me with a little chemistry question as I have
very limited chemical knowledge. I want to make different percentage
solutions of Ferric Ammonium Citrate and Potassium ferricyanide (for
example a 10%, a 15%, a 20% right through to a 45% solution of both
chemicals) and have been told that it is not merely done by adding 10
parts powder 90 parts water or so on due to molecular weights. I was
wondering if anyone could tell me how I go about determining what is right
for both substances. If you could include exactly how you calculated it
it would be a great help

Thanks
Nici Churchill