Quantcast

AAMC #3, Question 46

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.

deh2ase

Full Member
Joined
May 26, 2013
Messages
67
Reaction score
3
The reaction is H2SO4(aq) + Fe --> H2 + Fe(SO4)2

The oxidation state of sulfate doesn't change going from reactant to product. Since you are looking for the reducing agent, you want the reactant that is being oxidized (Fe).

H+ (+1) --> H2 (0)

Fe (0) --> Fe2+ (2+)
 

Jepstein30

Full Member
Joined
Jun 29, 2011
Messages
1,721
Reaction score
293
The reaction is H2SO4(aq) + Fe --> H2 + Fe(SO4)2

The oxidation state of sulfate doesn't change going from reactant to product. Since you are looking for the reducing agent, you want the reactant that is being oxidized (Fe).

H+ (+1) --> H2 (0)

Fe (0) --> Fe2+ (2+)

Thing getting reduced/oxidized = element

Reducing agent = molecule

If this is the reaction, we know that H is getting reduced (+1 to 0) and Fe is getting oxidized (0 to +2).

H = reduced
Fe = oxidized

But oxidizing/reducing agents are molecules (reactants).. so since the reducing agent is the thing that gets oxidized.. it's Fe. The oxidizing agent would be H2SO4 (not just H).
 

deh2ase

Full Member
Joined
May 26, 2013
Messages
67
Reaction score
3
Thing getting reduced/oxidized = element

Reducing agent = molecule

If this is the reaction, we know that H is getting reduced (+1 to 0) and Fe is getting oxidized (0 to +2).

H = reduced
Fe = oxidized

But oxidizing/reducing agents are molecules (reactants).. so since the reducing agent is the thing that gets oxidized.. it's Fe. The oxidizing agent would be H2SO4 (not just H).

I concur, good clarification.
 
Top