Chapter 13, Problem 13.13QP

The rate law for the reaction

${\text{NH}}_4^{+}(aq)+{\text{NO}}_2^{-}(aq)\stackrel{}{\to }{\text{N}}_2(g)+2{\text{H}}_2\text{O}(l)$

is given by $\text{rate}=k[{\text{NH}}_4^{+}][{\text{NO}}_2^{-}]$. At 25°C, the rate constant is 3.0 × 10⁻⁴/M · s. Calculate the rate of the reaction at this temperature if $[{\text{NH}}_4^{+}]=0.26M$ and $[{\text{NO}}_2^{-}]=0.080M$.