WILL MARK AS B Brine is a solution of salt and water. If a tub contains 50 gallons of a 5% solution of brine, how much water must evaporate to change it to an 8% solution?
81.25 gallons
62.50 gallons
18.75 gallons
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Assuming it is by volume, and the change in volume as something dissolves is not a factor, then:
5% of 50 gallons is 2.5 gallons. so there is 2.5 gal of salt and 47.5 gal of water
2.5 gallons / 8% = 31.25 gallons total. Of that, 2.5 gal is salt and 28.75 gal is water. To check, 0.08 x 31.25 = 2.5 gal.
Difference is 47.5 gal – 28.75 gal = 18.75 gal
MARK IT AS BRAINLIST
5% of 50 gallons is 2.5 gallons. so there is 2.5 gal of salt and 47.5 gal of water
2.5 gallons / 8% = 31.25 gallons total. Of that, 2.5 gal is salt and 28.75 gal is water. To check, 0.08 x 31.25 = 2.5 gal.
Difference is 47.5 gal – 28.75 gal = 18.75 gal
MARK IT AS BRAINLIST
Answered by
2
18. 75 gallons...
plz mark me as brain list...
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