it is usually the freight forwarder who undertakes on behalf of the consignor or the consignee, to process the movement of goods through the various stages involved. the consignor here normally refers to the ( ).
【单选题】钒的电势图为 V( V ) +1 .00 v V( IV ) +0 .36 v V( III ) - 0.25 v V( II ), 已知: E Θ (Zn 2 + /Zn) = - 0 . 76 v , E Θ (Sn 4 + / Sn 2 + ) = + 0 . 15 v , E Θ (Fe 3 + / Fe 2 + ) = + 0 . 77 v , E Θ (S / H 2 S) = + 0...
【简答题】已知: Fe 3+ + e - = Fe 2+ E Ɵ =0.77V, 原电池: ( - )Pt∣ Fe 2+ ( c 1 ) , Fe 3+ ( c 2 )║Ag + ( c 3 )∣Ag(+) 的 EΘ =0.028V 。 若 c(Ag + )=1.00mol · L -1 ,而 c (Fe 3+ )= c (Fe 2+ ) ,则原电池的 E = __________ ,若 E =0V , c...