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Concentrated aqueous sulphuric acid is 98% H2SO4 by mass and has a density of 1.80 g mol-1. Volume of acid required to make one litre of 0.1 M H2SO4 solution is

(a) 16.65 mL

(b) 22.20 mL

(c) 5.55 mL

(d) 11.10 mL

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2 Answers

+1 vote
by (67.8k points)

Correct option (c) 5.55 mL

Explanation :

Let V mL of this H2SO4 are used to prepare 1 litre of 0.1 M H2SO4.

mM of concentrated H2SO4 = mM of dilute H2SO4 

0 votes
by (10.9k points)
Option (c) is correct

100g conc acid solution contains 98 g or 1 mole H2SO4

So 100/1.8 mL acid solution contains 1 mole acid

x mL solution contains 1.8/100*x mol H2SO4

If this x mLsolution is required to make

 1L 0.1 M acid solution then

1.8x/100=0.1

=>x,=100/18=5.55mL

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