Question

Consider the following half-reactions: Half-reaction E° (V) 12(s) + 2e - →21"(aq) 0.535V 2H+ (aq) + 2e - → H2(g) 0.000V Cr3+(aq) + 3e —— Cr(s) -0.740V The strongest oxidizing agent is: enter formula The weakest oxidizing agent is: The weakest reducing agent is: The strongest reducing agent is: Will 12(s) reduce Cr3+(aq) to Cr(s)? — Which species can be reduced by H2(g)? If none, leave box blank.

Answer 1

Consider the following half-reactions: Half-reaction E° (V) L2(s) + 2e - →21(aq) 0.535V 2H+ (aq) + 2e →→ H2(g) 0.000V Cr3+ (aq) + 3e —Cr(s) -0.740V 2 The strongest oxidizing agent is: enter formula I has most tendency to undergo reduction thus strongest oxidising agent, R.P = +0.535 The weakest oxidizing agent is: | Crt3 Cr+3 has least tendency to undergo reduction thus weak oxidising agent, R.P = -0.74 The weakest reducing agent is: 1- has least tendency to undergo oxidation, thus weakest reducing agent ( Oxidation potential =-0.535 The strongest reducing agent is: Cr Cr has most tendency to oxidise ( Ox. potentail = +0.740) Will 12(s) reduce Cr3+ (aq) to Cr(s)? _ NO. SRP of Cr 3/Cris more negative than SRP ofl Which species can be reduced by H2(g)? 1, If none, leave box blank.