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Biology and Chemistry Homework Help
Using 18% by weight ammonium hydroxide to make 16ppm aqueous solution
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[QUOTE="Borek, post: 6854794, member: 23711"] You even didn't wrote what is the volume you are trying to prepare - is it 200 L? No, M1V1=M2V2 is not the right approach. You should not operate with volumes, but with masses. 18 ppm is typically w/w - that is, you want your solution to contain 18*10[SUP]-6[/SUP] ammonia by mass. What is mass of the 200 L of the solution? (with no other data I would use just the density of pure water). 18 ppm of that - how many grams of ammonia required? How many grams of the 18% solution contain required mass of ammonia? And finally - convert to the volume. [/QUOTE]
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Using 18% by weight ammonium hydroxide to make 16ppm aqueous solution
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