SOLUTION: What quantity of 75 per cent acid solution must be mixed with a 25 solution to produce 480 mL of a 50 per cent solution?
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Question 208325: What quantity of 75 per cent acid solution must be mixed with a 25 solution to produce 480 mL of a 50 per cent solution?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
.75x+.25(480-x)=480*.50
.75x+120-.25x=240
.5x=120
x=240
240 ml of each
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