The cell reaction `Cr_2O_7^(2-)(aq)+14H^+(aq)+6Fe^(2+)(aq)to6Fe^(3+)(aq)+2Cr^(3+)(aq)+7H_2O(l)` is best represented by:

The electrode with reaction :Cr_(2)O_(7)^(2-)(aq)+14H^(o+)(aq)+6e^(-) rarr 2Cr^(3+)(aq)+7H_(2)O can be represented as

The electrode with reaction :Cr_(2)O_(7)^(2-)(aq)+14H^(o+)(aq)+6e^(-) rarr 2Cr^(3+)(aq)+7H_(2)O can be represented as

Calculate the potential for half-cell containing 0.10 M K_(2) Cr_(2) O_(7) (aq), 0.20 M Cr^(3+) (aq) and 1.0 xx 10^(-4) MH^(+) ( aq) . The half- cell reaction is Cr_(2) O_(7)^(2-) ( aq) + 14H^(+) ( aq) + 6e^(-)rarr 2Cr^(3+) (aq) + 7 H_(2) O ( l ) and the standard electrode potential is given as E^(@) = 1.33 V .

Calculate the potential for a half cell reaction containing 0.1 M K_(2)Cr_(2)O_(7), 0.20 M Cr^(3+)(aq) and 1.0xx10^(-4) M H^(+)(aq) . The half cell reaction is : Cr_(2)O_(7)^(2-)(aq)+14 H^(+)(aq)+6e^(-)to2 Cr^(3+)(aq)+7H_(2)O (l) The standard electrode potential (E^(@))=1.33 V .

What type of a battery is lead storage battery? Write the anode and cathode reactions and the overall cell reaction occurring in the operation of a lead storage battery. (b) Calucluate the potential for half-cell containing. 0.10 M K_(2)Cr_(2)O_(7)(aq), 0.20 M Cr^(3+) (aq) and 1.0 xx 10^(-4) M H^(+) (aq) The half -cell reaction is Cr_(2)O_(7)^(2-) (aq) + 4H^(+) (aq) + 6 e^(-) to 2 Cr^(3+) (aq) + 7H_(2)O(l) and the standard electron potential is given as E^(o) = 1.33V .

What type of a battery is lead storage battery? Write the anode and cathode reactions and the overall cell reaction occurring in the operation of a lead storage battery. (b) Calucluate the potential for half-cell containing. 0.10 M K_(2)Cr_(2)O_(7)(aq), 0.20 M Cr^(3+) (aq) and 1.0 xx 10^(-4) M H^(+) (aq) The half -cell reaction is Cr_(2)O_(7)^(2-) (aq) + 4H^(+) (aq) + 6 e^(-) to 2 Cr^(3+) (aq) + 7H_(2)O(l) and the standard electron potential is given as E^(o) = 1.33V .

Consider the following equation. Cr_2O_7^(2-) (aq) + Br^(-) (aq) + H^(+) (aq) to Br_2(l) + Cr^(3) + (aq) + H_2O(l) In this reaction, which one of the following is a reducing agent?