Concentrated aqueous sulphuric acid is 98% H2SO4 by mass & has a density of 1.80gm/L. Volume of acid required to make one litre of 0.1M H2SO4 solution is??
(answer is 5.55 mL. Plz explain how to solve it)
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Concentrated aqueous sulphuric acid is 98% H2SO4 by mass & has a density of 1.80gm/L. Volume of acid required to make one litre of 0.1M H2SO4 solution is??
(answer is 5.55 mL. Plz explain how to solve it)
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Answer: 0.0055 L
Solution :
98 % solution means 98 g of is present in 100 g of solution.
Mass of solution = 100 g
Density of solution = 1.80 g/ml
Now we have to calculate the volume of solution.
Molarity : It is defined as the number of moles of solute present in one liter of solution.
Formula used :
where,
n = moles of solute =
= volume of solution in ml
Now put all the given values in the formula of molarity, we get
Therefore, the molarity of solution will be 18 mole/L
Now using molarity equation: