Hard Question!! Please Help! (1 Viewer)

[soisorce26]

In the unbalanced equation:

BrO3ˉ(aq) + H(plus ion) + SO2(g) -----> Brˉ (aq) +SO4(2minus)

a) CAlculate and show oxidation numbers to determine which species has been oxidised adn which has been reduced.

b)Which species is the oxidising agent and which is the reducing agent?


please help!....thanks all

 

[brenton1987]

BrO₃^- + H⁺ + SO₂ --> Br^- + SO₄^2-
a) Calculate and show oxidation numbers to determine which species has been oxidised and which has been reduced.

Br(+5)O(-2)₃^- + H(+1)⁺ + S(+4)O(-2)₂ --> Br(-1)^- + S(+6)O(-2)₄^2-
Oxidised - S
Reduced - Br

b)Which species is the oxidising agent and which is the reducing agent?

Oxidant - BrO₃^-
Reductant - SO₂

 

[soisorce26]

Hey, i just wanted to let you guys kniow that Question a) =4marks, and Question b)=2 marks. so what kind of working out is required for the first Question???

 

[soisorce26]

thank you guys heaps! much appreciated =D