Question

Calculate the volume of 80% H2SO4(density=1.80 gm/cc) required to prepare one litre of 20% H2SO4(density=1.25g/cc).

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Answer 1

Answer:

0.36 litre

Explanation:

80g of H2SO4 for every 100g

V=m/d

V=100/1.8

=55.55cc

Molarity = n/v

n= 80/98

V= 55.55

then for second also Volume=100/1.25

=80

compare both the equations

number of millimoles of A=number of millimoles of B

you will get the answer