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Q.

A sample of  H2SO4 (density 1.8 gr/ml) is 90% by weight. What is the volume of the acid that has to be used to make 1 ltr of 0.2 M  H2SO4?

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a

18 ml

b

12 ml

c

10 ml

d

16 ml

answer is C.

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Detailed Solution

detailed_solution_thumbnail

M=%[ww]×d×10Mwt=90×1.8×1098=90×1898=16.53

M1V1=M2V2

16.53×V1=0.2×1

V1=0.216.53=0.012 L = 12 ml

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