Equilibria, Energetics and Elements (F325) - June 2011 Exam.

Does NH3 never have a charge?

I think Pt has a 2+ charge, then each Cl ligand has a 1- charge, the NH3 ligands have no charge. So the Pt2+ and 2CL- cancel out.

Look at the ratio of oxygens formed on the right hand side of the equation. They're in 2:1/2 right? so you divide it by 2 to get 1:1/4

This is where the 4 comes from, so you divide the initial rate by 4

I've got a question about Potassium Manganate. How come they still call it an oxidising agent when its oxidation number increases when it reacts with other elements e.g Iron(11)? Please help?

I've got a question about Potassium Manganate. How come they still call it an oxidising agent when its oxidation number increases when it reacts with other elements e.g Iron(11)? Please help?

I've got a question about Potassium Manganate. How come they still call it an oxidising agent when its oxidation number increases when it reacts with other elements e.g Iron(11)? Please help?

I think it because its a self oxidising agent? MnO4 2- - - > Mn 2+

do we need to learn the structure of EDTA or so u think they'll give it?

Doesn't it decrease in oxidation number from +7 in MnO4- to +2 in Mn2+ ? So it is reduced when it reacts with Fe2+ I think.

They will give it or sllow you to use symbols to represent it

Kc is unaffected by pressure, concentration, and catalyst.

But K, rate constant is affected by these?

Kc is unaffected by pressure, concentration, and catalyst.

But K, rate constant is affected by these?