SOLUTION: A chemist has 1000 g of a solution that is 40% acid. How many grams of water must be added to reduce the acidity to 25%

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 Question 523298: A chemist has 1000 g of a solution that is 40% acid. How many grams of water must be added to reduce the acidity to 25%Answer by stanbon(57409)   (Show Source): You can put this solution on YOUR website!A chemist has 1000 g of a solution that is 40% acid. How many grams of water must be added to reduce the acidity to 25% ----------------- Equation: acid + acid = acid 0.40*1000 + 0*x = 0.25(1000+x) ------ Multiply thru by 100 to get: 40*1000 + 0 = 25*1000 + 25x --- 25x = 15*1000 x = (2/5)1000 x = 400 grapm(amt. of water needed) ===================================== Cheers, Stan H. ============