1. The problem statement, all variables and given/known data Consider the following aqueous solution at 25°C Cr2(SO4)3, 1.26 mol/L, 1.37 mol/kg Calculate the mole fraction, density and % w/w 2. Relevant equations χ = n Cr2(SO4)3 / n Cr2(SO4)3 + n H2O Unit conversions ρ= g solvent / mL solution % w/w = mass solvent / 100 g solution 3. The attempt at a solution I attempted to solve for density first: 1.26 mol/L x 391.992g/mol x 1 L / 1000 mL = 0.493g/mL (The actual answer is 1.41g/mL) Without density I do not know how to figure out the mole fraction. I am stuck at this part so far. Thank you in advance.