Answer to Question #334009 in Physical Chemistry for Belatlami

Question

The reaction between solid white phosphorus and oxygen produces solid tetraphosphorusdecoxide (P4O10)

A. Write the balanced chemical equation of the reaction

b. Determine the mass of tetraphosphorusdecoxide (P4O10) formed if 26.0 g of phosphorus (P4) and 49.5 g oxygen (O2) are combined.

C. How much of the excess reactant remains after the reaction stops.

Answer 1

P₄ + 5O₂ → P₄O₁₀

n(P4)=n(P4O10)= 0.21 mol, the oxygen is in excess (is 0.1), m(P4O10)=0.21*155.90=32.739 g