I was told by my teacher that the following reaction proceeds through SNi: Moist $\ce{Ag2O}$ is basically $\ce{AgOH}$, what role does it play in this reaction's mechanism? I think this is what happens, but I am not sure: $\ce{AgOH}$ attacks $\ce{Cl-}$ and during this process the $\ce{Ag-O}$...

Just to be clear, I do understand that the units of the rate constant k is selected to make the equation dimensionally consistent. That is not what I am asking. It should be the case that k 'means' something physically, which is implied by its dimensions/units. And I would also assume that what k...