Calculate the molality, the molarity, and the mole fraction of NH3 in an 9.50 mass % aqueous solution (d=0.9651 g/mL). m M mole fraction Calculate the molality, molarity, and mole fraction of FeCl3 in a 28.0 mass % aqueous solution (d=1.280 g/mL). m M mole fraction What mass of cesium bromide must be added to 0.500 L of water (d=1.00 g/mL) to produce a 0.795 m solution? What are the mole fraction and the mass percent of CsBr? g mole fraction mass %