The second-order rate constant (in units of M-1 s-1) for acid-catalyzed hydration at 25°C is given for each of the following alkenes:

a. Calculate the relative rates of hydration of the alkenes.
b. Why does (Z)-2-butene react faster than (E)-2-butene?
c. Why does 2-methyl-2-butene react faster than (Z)-2-butene?
d. Why does 2,3-dimethyl-2-butene react faster than 2-methyl-2-butene?

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H3C H3レンジ. C-C с-с с-с CH 4.95 x 108 8.32 x 108 3.51 x 10-8 2.15 x 10-4