The decomposition of N2O5 is described by the following equation. 2N2O5(g) → 4NO2(g) + O2(g) If the rate constant is 2.50 × 10−4 s−1, what is the half-life of this reaction?

2,772 seconds is the half-life of this reaction.

Explanation:

The rate constant of the reaction = k =

From the unit of rate constant, the order of reaction will be 1.This is because the unit of the rate constant the reaction following first order kinetics is time inverse.

For first order kinetic half life () and rate constant (k)are related by :

2,772 seconds is the half-life of this reaction.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)