3. Calculate the Number of Moles of Nalorphene: Moles of Nalorphene=massmolar mass=1.5×10−3g312g/mol≈4.8×10−6mol 4. Use the Definition of Molality: - Molality (m) is defined as: m=moles of solutemass of solvent (kg) - Rearranging gives us: mass of solvent (kg)=moles of...