# SOLUTION: How much pure acid must be added to 50ml of 25% acid solution to produce a mixture that is 60% acid

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 Question 551707: How much pure acid must be added to 50ml of 25% acid solution to produce a mixture that is 60% acid Answer by mananth(12270)   (Show Source): You can put this solution on YOUR website! percent ---------------- quantity Acid 25 ----------------50 ml Pure acid 100 ----------------x ml Mixture 60 ---------------- 50+xml 25*50+100x=60(50+x) 1250+100x=3000+60x 100x-60 x=3000 -1250 40 x = 1750 / 40 x= 43.75 ml of Pure acid