Calculate the mass percent of a nacl solution prepared by mixing 47.0 g nacl with 125.0 ml of pure water.

The  mass   percent  of  a NaCl  solution  prepared  by  mixing  47.0  g NaCl with  125.0 Ml  of pure  water   is  27.3%

    calculation
   % mass  =mass  of  solute / mass  of the solvent  x 100
 mass of the solute(NaCl )=  47 g

mass of the solvent =   mass  of pure water + mass  of  NaCl
convert  125 Ml  of pure water   to grams
that is  1 ml = 1 g   therefore 125ml = 125  g

mass  of solvent   is therefore= 125g+ 47=172g

 therefore the %   mass =  47/172 x100 =  27.3 %

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