A mass of 189 g of manganese dibromide is dissolved in 250 g of water. the molality of the solution is 3.52 mol/kg
The molality of the solution is given as :
molality = moles of solute / kilogram of solvent
moles of solute = mass / molar mass
= 189 / 214.74
= 0.88 mol
kilogram of solvent = 250 g = 0.25 kg
Molality = 0.88 / 0.25
= 3.52 mol/kg
Thus, A mass of 189 g of manganese dibromide is dissolved in 250 g of water. the molality of the solution is 3.52 mol/kg.
To learn more about molality here
https://brainly.com/question/26921570
#SPJ4