pp pical chemistry ectrochemid四 QUIZ Answers (c) The cell reaction:(1分) Cuz+(m1)+ so42(m1)+Zn>Cu+ Zn +(m2 )+so42(m2) SO2 (zn2+) Q=∏a"= ZnSO (SO4 )ZnSO4(SO4 )DmSO4 (ac12 I Sir Q)(cn2+mcn2-)((02) CuSo Ince )m(SO2 )CuSO4 Y+( Cu2+)CuSO 4 =Y (SO4-)CuSO4=Y+( CuSO4)=0.74 Y+(Zn *)ZnSO 4=Y(S042)ZnSO4 =Y+(ZnSO4)=0.60 Also My=m( Cu2+)CuSO4=m(S042)CuSO4=1x10 mo·ka1 m2=m (Zn+)ZnSO4 =m(So4)ZnSO4=3x10-3mol-kgs5 Answers. Physical Chemistry Electrochemistry QUIZ (c) The cell reaction: Cu2+ (m1 ) + SO4 2- (m1 ) + Zn → Cu + Zn2+ (m2 ) + SO4 2- (m2 )         =  = = + + − − + + − − + − + − ( )( ) ( )( ) ( )( ) ( )( ) ( )( ) ( )( ) 4 2 4 4 2 4 2 2 4 2 4 4 2 4 2 2 4 2 4 2 4 2 4 2 ( ) ( ) ( ) ( ) ( ) ( ) CuSO CuSO ZnSO ZnSO CuSO ZnSO Cu Cu SO SO Zn Zn SO SO Cu SO v Zn SO m m m m a a a a Q a     Since + (Cu2+)CuSO4 = - (SO4 2- )CuSO4 = ± (CuSO4 ) = 0.74 + (Zn2+)ZnSO4 = - (SO4 2- )ZnSO4 = ± (ZnSO4 ) = 0.60 Also m1 = m (Cu2+)CuSO4 = m (SO4 2- )CuSO4 = 110-3 molkg-1 m2 = m (Zn2+)ZnSO4 = m (SO4 2- )ZnSO4 = 310-3 molkg- 1 (1分) (1分)