Introduction to Rate Law

AP Chemistry· difficulty 3/5

Why is excess water often used in hydrolysis kinetics studies?

A
$So [H₂O] is approximately constant — pseudo-first-order in the other reactant$
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B
$To make rate exactly zero$
C
$To raise T$
D
$To lower Eₐ$

Explanation

Large [H₂O] hardly changes; the rate dependence collapses to first order in the dilute reactant.

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