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# What is molality of 98% H2SO4 by wieght?

## 2 Answers

9 years ago

Dear Akshat Sinha,

We can find the molality by the following steps:-

Let the weight of soln. be 100 grams. then the weight of H2SO4 will be 98 grams...

therefore,we find the no. of moles in 98% H2SO4= weight / molecular mass=98/98=1 mole

Molality= No.of moles of solute/Wt of solvent =1/2

Since we have taken the weight to be 100 g. We need to find it for a kg...

=1/2*1000=500 molal soln.

Hope this helped you dear........

All The Best,.........

I hope that you are surely going to approve my answer by clicking 'Yes' given below.......... 9 years ago

We can find the molality by the following steps:-

Let the weight of soln. be 100 grams. then the weight of H2SO4 will be 98 grams...

therefore,we find the no. of moles in 98% H2SO4= weight / molecular mass=98/98=1 mole

Molality= No.of moles of solute/Wt of solvent =1/2

Since we have taken the weight to be 100 g. We need to find it for a kg...

=1/2*1000=500 molal soln.

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