The density of a 20% by mass solution of sulphuric acid is 1.14g/ml. Calculate the mass of hydrogen sulphate in one litre of the solution. ?

1 Answer
anor277
Dec 16, 2017

#"Mass of "HSO_4^(-)-=226.1*g#

Explanation:

We gots a mass of #1*Lxx1000*mL*L^-1xx1.14*g*mL^-1#

#-=1140*g#...and given the starting conditions, 20% by mass of this represents...#H_2SO_4#...i.e. #228*g#

And so #"moles of sulfuric acid"=(228*g)/(98.08*g*mol^-1)=2.33*mol#....

And so formally, there are #2.33*mol# #HSO_4^(-)#, i.e. a mass of #2.33*molxx97.03*g*mol^-1-=226.1*g#

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