Question

Calculate the total number of moles of oxygen containing products that can be formed by the decomposition of 1.75 moles of ammonium nitrate according to the balance chemical equation 2NH4NO3 = 2N2 + O2 + 4H2O

Answer 1

Ans. Following stoichiometry of balanced reaction 2 mol ammonium nitrate forms 1 mol oxygen (O₂).

So,

            Moles of O2 formed = (1 mol O₂ / 2 mol NH₄NO₃) x moles of NH₄NO₃ taken

                                                = (1 mol O₂ / 2 mol NH₄NO₃) x 1.75 mol NH₄NO₃

                                                = 0.875 mol O₂

Hence, moles of oxygen (O₂) formed = 0.875 mol