A household chlorine bleach is a water solution that is 5.00% by mass sodium hypochlorite. What is the molality of the hypochlorite in the solution? What is the mole fraction of hypochlorite in the solution?
a. Molality is moles of solute over kilograms of solvent; it's a temperature independent measure of solubility.
b. Mole fraction is the ratio of moles of solvent or solute per total moles of components of the solution, thus: