<PRE><B>Question 982582</B>
the doctor orders a 14 1/2 % solution
 he asks the pharmacy to prepare 35 ml of the solution
 how many grams of pure drug will be in 35 ml of this 14 1/2 % solution round to the nearest tenth.
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Question:: Are you mixing the 35% solution with pure water?
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Assuming you are you get:
active + active = active
1*x + 0(35-x) = 0.145*35
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Multiply thru by 1000 to get:
1000x + 0 = 145*35
x = 5.075 ml (amount of pure drug needed)
35-x = 29.925 ml (amout of pure water needed)
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Cheers,
Stan H.
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