Question

When 5 gram of bacl2 is dissolved in water to have 10^6 gram of solution the concentration of solution is?

Answer 1

Answer:

Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.

where,

n = moles of solute

  = weight of solvent in kg

moles of solute =

mass of solution = 100000 g

mass of solute = 1.04 g

mass of solvent = mass of solution - mass of solute = (100000- 1.04) g = 99998.96 g = 99.9 kg

Now put all the given values in the formula of molality, we get

Therefore, the molality of solution will be