[nigoe]

I was wondering whether there was a general reaction mechanism for the reaction between magnesium and acid. I have read that the order of reaction with respect to Mg is 0. This would imply that the rate determining step is purely to do with Hydrogen (surely the sulfate for instance doesnt take part). In order to show this I need a viable reaction mechanism, any Ideas?

Thanks in advance

[LQ43]

so starting with H2SO4, what happens to the hydrogen in the reaction?

[IITian]

I guess one might think of the H₂ evolved being somehow still attached to the Mg surface thereby causing retarded reaction rates!

[LQ43]

I guess one might think of the H₂ evolved being somehow still attached to the Mg surface thereby causing retarded reaction rates!

maybe but unlikely after reduction

molecularity is more likely. 2H+ are need to reduce to H2.

how is H+ produced, what are the chances of 2 H+ getting together on the Mg surface to reduce to H2? how would concentration affect those chances?