a solution contains 8 liters of hydrochloric acid and 32 litres of water.a new mixture of 30% hydrochloric acid is to be formed replacing.how many litres of mixture should be replaced with pure hydrochloric acid?
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Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A Solution contains 8 liters of acid and 32 liters of water. How many liters of water must be evaporated to produce a solution which will be 40% acid?
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Equation:
water - water = water
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Note: 32 liters of water in 40 liters is 80% water
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0.80*40 - 1*x = 0.60(40-x)
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80*40-100x = 60*40-60x
-40x = -20*40
x = 20 liters (amt of water to evaporate)
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Cheers,
Stan H.
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