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A chemist mixes 125 milliliters of a solution that is 18% acid with 500 milliliters of pure acid.

(a) How many milliliters of acid are in the resulting mixture?

(b) What percentage of the resulting mixture is acid?​

 Sep 7, 2020
 #1
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A    .18 (125)    +     500 =    ........  ml

 

B   Total result is  125   + 500 = 625 ml

         Divide answer A  by this to get fraction that is acid, multiply by 100 to get %

 Sep 7, 2020

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