Phosphorus will react with oxygen to form diphosphorus pentoxide, p2o5 4p(s)+5o2(g) → 2p2o5(s) how many grams of p2o5 are formed when 4.89 g of p react with excess oxygen?

Explanation:

Given,

Mass of P = 4.89 g

Molar mass of = 30.9738 g/mol

The formula for the calculation of moles is shown below:

Thus,

According to the reaction shown below as:-

4 moles of P on reaction forms 2 moles of diphosphorus pentoxide

Also,

1 mole of P on reaction forms 2/4 mole of diphosphorus pentoxide

0.158 moles of P on reaction forms moles of diphosphorus pentoxide

Moles of diphosphorus pentoxide = 0.079 moles

Molar mass of diphosphorus pentoxide = 141.9445 g/mol

Mass = Moles * Molar mass = 0.079 moles * 141.9445 g/mol = 11.2 g