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March 30, 2017

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These review questions are stumping me.

How much water must be added to 50 ML of a 35% acid solution to produce a mixture that is 20% acid.

Could it be as simple as 15% water?

  • Math - ,

    how much acid initially?
    .35*50ml= 17.5ml
    How much water?
    .65*60=32.5ml

    .20(32.5+X)=17.5
    solve for X

  • Math One more thing - ,

    I got the answer to be 55 ml, but can you please explain how you knew to do that?

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