Which of the following statements is correct ? If E_(Cu^(2+)|Cu)^(@) = 0.34 V and E_(Sn^(2+)|Sn)^(@) = -0.136 V , E_(H^(+)|H_2)^(@) = -0.0V
Consider the systems having liquid-solid interface, (a) copper wire in silver nitrate solution and (b) silver wire in copper sulphate solution. Predict which interface will show spontaneous reaction, if E_(Cu^(2+)//Cu)^(@)=0.34V and E_(Ag^(+)//Ag)^(@)= 0.80V ?
Which one is correct among the following give, the half cell emf's E^(0) Cu^(+2)//Cu=0.337V and E_(Cu^(+1)//Cu)^(0) = 0.521 V
If K_(c) for the reaction Cu_((aq))^(2+) + Sn_((aq))^(2+) to Sn_((aq))^(4+) + Cu_((s)) at 25^(@) C is represented as y xx 10^(6) then find the value of y . (Given : E(Cu^(2+) |Cu)^(@) = 0.34 V , E_(Sn^(4+)|Sn^(2+))^(@) = 0.15V )
The emf of the following three galvanic cells are respresented by E_(1), E_(2) and E_(3) respectively. Which of the following is correct? (i) Zn//Zn^(2+) (1M)// //Cu^(2+)(1M)//Cu (ii) Zn//Zn^(2+) (0.1M)// //Cu^(2+)(1M)//Cu (iii) Zn//Zn^(2+)(1M)// //Cu^(2+)(0.1M)//Cu
E_("red")^(0) (Standard reduction potential ) of different half-cells are given E_(Cu^(+2)//Cu)^(0) = 0.34 V E_(Zn^(+2)//Zn)^(0) = -0.76 V , E_(Ag^(+) // Ag)^(0) = 0.80 V , E_(Mg^(2+) // Mg)^(0) = -2.37 V . In which cell DeltaG^(@) is most negative ?
Copper reduces NO_3^(-) into NO and NO_2 depending upon concentration of HNO_3 in solution . Assuming [Cu^(2+)] = 0.1 M , and P_(NO) = P_(NO_2) = 10^(-3) bar . At which concentration of HNO_3 . Thermodynamic tendency for reduction of NO_3^(-) into NO and NO_2 by copper is same ? Given : E_(Cu^(2+)|Cu)^(@) = + 0.34 V , E_(NO_3^(-)|NO)^(@) = + 0.96 V , E_(NO_3^(-)|NO_2)^(@) = + 0.79 V
The emf (in V) of a Daniell cell containing 0.1 M ZnSO_(4) and 0.01 M CuSO_(4) solutions at their respective electrodes is (E_((Cu^(2+))/(Cu))^@ = +0.34 V, E_((Zn^(2+))/(Zn))^@ = -0.76 V)
Cu^+ ion is not stable in aqueous solution because of diproportionation reaction . E^(@) value for the disproportionation of Cu^(+) is : (E_(cu^(2+)// cu^+)^(@) = + 0.15 V , E_(cu^(+) // cu)^(@)= + 0.34 V )