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March 28, 2017

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How many mL of concentrated ammonia (14M) should be diluted to 250 mL to make a 0.75 M NH3 solution?

  • College Chem - ,

    you are diluting it 14/.75= 14*4/3= 18 2/3 times. That means one part original stuff, 17 2/3 parts water.

    what is one part? 250ml/(18.6666)=13.393 ml

    so 13.392 ml of 14M conc ammonia
    and 17 2/3 x 13.392=236.607ml water.

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