How much wat must be evaporated from a 65-gallon tank of 40% salt solution in order to obtain an 80% salt solution?
C1 V1 = C2 V2
0.4 x 65 = 0.8 x V2
V2 = 65/2 = 32.5 gallons
amount that must evaporate = 65-32.5
= 32.5
0.4 x 65 = 0.8 x V2
V2 = 65/2 = 32.5 gallons
amount that must evaporate = 65-32.5
= 32.5