Week 2 Physics 133

LaO 0.5 F 0.5 BiS 2 Starting elements and compounds: La 2 O 3 La 2 F 3 La Bi 2 S 3 S A(La 2 O 3 ) + B(La 2 F 3 ) + C(La) + D(Bi 2 S 3 ) + E(S)= LaO 0.5 F 0.5 BiS 2 System of equations: 2 A +2 B + C=1 3A=0.5 3B=0.5 2D=1 3D+E=2 C=1/3 A=1/6 B=1/6 D=1/2 E=1/2

LaO 0.5 F 0.5 BiS 2 Starting CompoundLa2O3La2F3LaBi2S3S Molar Mass Ratio Total Molar Mass*Ratio Normalized to 1g

CeRhIn 5 Starting compounds: Ce Rh In A(Ce) + B(Rh) + C(In) = CeRhIn 5 Trivial system of equations! A=1 B=1 C=5

CeRhIn 5 Starting CompoundCeRhIn Molar Mass Ratio115Total Molar Mass*Ratio Normalized to 1g