A salt solution of 15 litres contains 20% salt.How much water must you add to salt solution in order to dilute it 15% salt?
4 answers
you want 3/4 the concentration, so you must have 4/3 the volume.
Or use the reliable c1v1 = c2v2
20%*15L = 15%*L
L =?
20%*15L = 15%*L
L =?
c1v1=c2v2
20%*15L=15%*L
20/100*15=15/100*L
3=3/20*L
L=3*20/3
L=20Ltrs
20%*15L=15%*L
20/100*15=15/100*L
3=3/20*L
L=3*20/3
L=20Ltrs
You must add 75 liters.
:)
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