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The molality of H₂SO₄ solution is 24.2 m.
<u>Explanation:</u>
We need to find the molality of sulfuric acid.
Mass of sulfuric acid = 785.6 g
Mass of water = 359 g
We have to find the moles of H₂SO₄ by using its mass and molar mass as,
Moles of H₂SO₄ =
= 8.7 moles
Mass of the solution in kg = = 0.359 kg
Molality =
=
= 24.2 m
So molality of the H₂SO₄ solution is 24.2 m.