calculate percentage composition in terms of mass of a solution obtained by mixing 300 g of 25 percent and 400 g of 40 percent solution by mass
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Mass of solute (1)= 300g *25/100
=75g
Mass of solute (2)= 400* 40/100= 160g
Total mass of solute =75+160= 235g
Total mass of solution =300+400= 700g
% composition = mass of solute *total mass of solution *100
=235/700*100
=33.57% of solution
% composition by mass of solvent =100- 33.57
=66.43%
bhumii18:
thanks
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