Q.

The molarity of H2SO4 solution, which has a density 1.84 g/cc at 35oC and contains 98% by weight is

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1.84 M

18.4 M

20.6 M

24.5 M

answer is B.

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Detailed Solution

98% by mass means 98 g H2SO4 is present in 100 g of acid. M= given mass ×1000 molecular mass ×V(cc)Given, mass = 98 g, molecular mass = 98 gV= mass density =1001.84 ∵ given density of H2SO4 is 1.84g/ccPutting the values,M=98×1000×1.8498×100=18.4M

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