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11.5gM*(1mol M/m g M)=(11.5/m)/0.8645=1 14.57-11.5=3.07gCl 3.07g Cl*(1mol Cl/35.5g Cl)=0.8645mol Cl/0.8645=1 ==>m=13.032 ==>molar mass of M=13g/mole
Mass of metal = 11.50 mass of the metal chloride = 14.57 mass of chlorine = 14.57-11.5 = 3.07 g moles of Chlorine = 3.07 / 35.5 = 0.0865 moles of metal in MCl = 0.0865 and these weigh 11.50g so 1 mole weighs 11.50 / .0865 = 132.95 g Cesium
