Can someone check my Maths for me? :slfg:
Mass of KNO3 = 200000mg
Mass of NO3:K= 62:39.1 (ratios of molars masses?)= 122,651mg:77,349mg
mass of water=0.5kg
Nitrate Ppm=mass of solute/mass of water
=122,651mg/.5kg of water
=245302ppm
Then
Still on nitrates
Initial concentration x initial volume = final concentration x final volume
So
Initial concentration=245302ppm
Initial volume=x mls
Final concentration=20ppm
Final volume=20000ml
So to get 20ppm nitrates
Initial volume=(final concentration x final volume)/initial concentration
=(20ppm x 20000ml)/245302ppm
=1.6ml
[Potassium
77349/.5
=154698ppm
(154698ppm x 1.6)/20000= final concentration
=12ppm]
Not sure how much that last part makes sense but not what I'm completely concerned about.