How does doubling the concentration of nucleophile affect the rate of a reaction with an SN1 mechanism?

No, an $"S"_"N"1$ reaction involves two steps. In a typical nucleophilic substitution reaction, a nucleophile Nu⁻ attacks a substrate R-LG. Nu⁻ + R-LG → Nu-R + LG⁻ The leaving group...

$S_(N)1$ reactions are essentially BOND-BREAKING reactions, that proceed thru the intermediacy of a three-membered intermediate. And we could examine the solvolysis of say a benzyl halide.... $PhCH_2X stackrel"slow"rarrunderbrace(PhCH_2^(+))_"benzyl carbocation" +...

Of course, temperature increase generally increases the rate of most chemical reactions, however, for a typical $S_N1$ reaction, we may invoke the following elemental step: $RCH(X)R'rightleftharpoonsRC^+HR' +X^-$ And this is...

In a $S_n1$ reaction the reaction rate does only depend on the concentration of the substrate. Mening that you can add all the nucleophile you wan't but the reaction wont...

.......whereas $S_N1$ processes are essentially bond-breaking reactions., and of course, are only dependent on the concentration of the electrophile. A bond making process at a tertiary carbon centre, for...

In SN1 mechanism 3 degree carbocations formed as an intermediate. we know "LIKE DISSOLVES LIKE",so polar solvent stabilises the carbocation intermediate & favours the reaction.

1-more stearic hindrance, more chance to give SN1 Rn. vice versa 2-more hyperconjugation capability of a substrate, more stable will be the carbocation ultimately more chance to give SN1 Rn....

Not only the solvent The type of nucleophilic substitution is decided by nucleophilicity and basicity of the nucleophyle, steric hindrance around the putative carbon, and type of solvent, protic solvents...

The clearest difference is in their names! SN1 reactions are unimolecular, stepwise mechanisms, where, $"R" = k["LG"^(-)]$ SN2 reactions are bimolecular, concerted mechanisms, where, $"R" = k["LG"^-]["Nu"]$ These reactions are...

Now of course $S_N1$ and $S_N2$ reactions are DISSOCIATIVE (i.e. bond-breaking), and ASSOCIATIVE (bond-making) respectively to a first approximation. Associative mechanisms are largely restricted to methyl, primary, and more rarely,...