Concentrated aqueous sulphuric acid is 98% $H_{2} S O_{4}$ by mass and has a density of 1.80 g $m L^{- 1}$ . Volume of acid required to make one litre of 0.1 M $H_{2} S O_{4}$ is:

5.55 mL

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11.10 mL

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16.65 mL

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22.20 mL

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Solution

The correct option is A 5.55 mL

$98$ % by weight $H_{2} S O_{4} = \frac{98 g H_{2} S O_{4}}{100 g s o l u t i o n}$

Volume of $100 g$ solution $= \frac{m a s s}{d e n s i t y} = \frac{100}{1.8} = 55.55 m L$

For, $0.1 M$ , we need $9.8 g H_{2} S O_{4}$

$55.55 m L a c i d = 98 g$

$5.55 m l a c i d = 9.8 g = 0.1 M o l a r a c i d$

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

The correct option is A 5.55 mL 98% by weight H2SO4=98 g H2SO4100 g solution Volume of 100 g solution =massdensity=1001.8=55.55 mL For, 0.1 M, we need 9.8 g H2SO4 55.55 mL acid=98 g 5.55 ml acid=9.8 g=0.1 Molar acid

Concentrated aqueous sulphuric acid is 98% $H_{2} S O_{4}$ by mass and has a density of 1.80 g $m L^{- 1}$ . Volume of acid required to make one litre of 0.1 M $H_{2} S O_{4}$ is: