nsider this reaction:

$2HI(g)H_2(g)+I_2(g)$

At a certain temperature it obeys this rate law.

rate $=(0\mathrm{.}0442M^{-1}*s^{-1})[HI{]}^2$

Suppose a vessel contains $HI$ at a concentration of $1\mathrm{.}28M.$ Calculate the concentration of $HI$ in the vessel $53\mathrm{.}0$ seconds later. You may assume no other reaction

is important.

Round your answer to $2$ significant digits.