Multiply the number of atoms by the atomic weight of each element found in steps 1 and 2 to get the mass of each element in Ti(AtO2)3: Molar Mass (g/mol) Ti (Titanium) 1× 47.867 = 47.867 At (Astatine) 3× 210 = 630 O (Oxygen) 6× 15.9994 = 95.9964 4. Sum Each Element's...