a laboratry technician needs to make a 60 liter batch of a 40% acid solution. how can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 20% to get the desired concentration?

Question

peachpi · Answer

40% of 60 liters = 0.4*60 = 24 liters of acid needed
60 - 24 = 36 liters of the other liquid
All the other liquid has to come from the 20% solution. 
80% of x liters = 36 liters
x = 45 liters
So you need 45 liters of the 20% solution and 15 liters of the pure acid.

erniellyd28 · Answer

thank you very very much :-)

erniellyd28 · Answer

if i could give you more medals i would :-)