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March 30, 2017

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What volume (L) of an aqueous solution that is 24.00 % by mass ammonia (NH3) and has a density of 0.910 g/mL must be taken to obtain 61.2 g of ammonia (NH3) ?

  • chemistry - ,

    24.00% by mass means
    24.00g NH3/100 g soln.
    The soln has a density of 0.910; therefore, the volume of the 100 g xoln is 100/0.910 = 109.89 mL so the solution is 24.00g NH3 in 109.89 mL or 0.2184 g/1 mL.
    Now 0.2184 g/mL x ??mL = 61.2 g.
    Solve for ?? mL.

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