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29/09/2020 8:00 pm
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The molarity of H2SO4 solution, which has a density 1.84 g/cc. at 35° C and contains 98% by weight, is :
(a) 1.84 M
(b) 18.4 M
(c) 20.6 M
(d) 24.5 M
1 Answer
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29/09/2020 8:03 pm
(b) 18.4 M
Explanation:
100 gm solution contains 98 gm H2SO4.
100/1.84 c.c contains 98 gm H2SO4.
1000 c.c solution contains
= 98/100 x 1.84 x 1000 gm H2SO4.
= 98/100 x 1.84 x 1000/98 moles of H2SO4.
= 18.4 M