Question

density of 18 moles of H2 S o4 solution is 1.8 glass mL-1 .The molality of the solution is

Answer 1

molality = mol H2SO4/kg solvent

molarity = mol H2SO4/L solution

Using density,

Mass of the solution = 1.8g/ml * 1000 ml = 1800g

Molecular weight of H2SO4 = 98g

Mass of solute (H2SO4) = 18 mol * 98 g = 1764 g

Mass of solvent = mass of solution - mass of solute

= 1800 g - 1764 g

= 36 g = 0.0036 kg

Molality = mol. H2SO4/ kg of solvent

= 18 mol/0.0036kg

= 500 mol/kg

Answer 2

Explanation:

please like it and mark as brainlist ❣️✨⚡