what is the percnt by mass if 2.5g of salt dissolve in 25.0g water?
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total mass of solutions is 2.5 + 25 = 27.5
mass%= [mass of solute / mass of solutions]× 100
=( 2.5/27.5)×100 = 9.09 %
mass%= [mass of solute / mass of solutions]× 100
=( 2.5/27.5)×100 = 9.09 %
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