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Question

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

A
1.84 M
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B
18.4 M
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C
20.6 M
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D
24.5 M
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Solution

The correct option is A 18.4 M
100 gm solution contains 98 gm H2SO4.

1001.84 cm3 contains 98 gm of H2SO4.

1000 cm3 solution contains

=98100×1.84×1000 gm H2SO4

=98100×1.84×100098 moles of H2SO4

=18.4 M.

Hence, the correct option is B.

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