Question

The molality of an H,SO, solution is 9. The weight of the solute in 1 kg H,SO, solution is
1) 900.0 g
2) 469 g
3) 882,0 g
4) 90g
pls answer fast with explaination​

Answer 1

Explanation:

molality =9 = 9moles of h2so4 in 1kg solvent = 9 moles in (1kg + 9×98) mass of solution

98 is molecular mass of h2so4

Now apply unitary method to get moles in 1 kg solution!