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Question

If 100 ml of 1M H2SO4 solution is mixed with 100 ml of 98% (w/w) H2SO4 solution (d = 0.1 g/ml), then:

A
concentration of solution remains same
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B
volume of solution become 200 ml
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C
mass of H2SO4 in the solution is 98 g
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D
mass of H2SO4 in the solution is 19.6 g
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Solution

The correct options are
A concentration of solution remains same
B volume of solution become 200 ml
D mass of H2SO4 in the solution is 19.6 g
(A) Molarity of second solution =10×d×xM=1M, where x is the concentration of second solution (in percent) and M is the molecular weight of the acid.
(B) Volume =100+100=200 mL
(C) Mass of H2SO4=200×11000×98=19.6 g
Hence, options A,B and D are correct.

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