# Homework Help: Many organic related

1. Jul 22, 2008

### atavistic

1. The problem statement, all variables and given/known data

1)$$(CH_3)_3CCH(OH)CH_3$$+ HBr ->

[hide=My View]I believe reaction should be elimination because $$Br^ -$$ is a weaker nucleophile than $$OH^ -$$ so it cannot substitute it.[/hide]

2)$$CH_3CH_2CHBrCH_3$$ + $$EtO^ -$$->

[hide]Substitution?[/hide]

3) Compare the nucleophilicity of$$NH_3$$ and $$PH_3$$

[hide]$$NH_3$$ has more $$e^ -$$ density so $$NH_3 > PH_3$$[/hide]

Will the following reactions be primarily substitution or elimination?

$$CH_3CH(Br)CH_3 + OH^ - (H_2O) - >$$

[hide]$$OH^ -$$is stabilized in water so cant go Sn2,it can go Sn1 though and maybe some elimination.[/hide]

$$CH_3CH(Br)CH_3 + OH^ - (Ethanol) - >$$

[hide]Isnt this case almost the same as above?[/hide]

2. Jul 23, 2008

### Spirochete

edit: mental note- Edit does not equal quote

3. Jul 23, 2008