Answer:
Explanation:
Given,
Mass of P = 4.89 g
Molar mass of [tex]P[/tex] = 30.9738 g/mol
The formula for the calculation of moles is shown below:
[tex]moles = \frac{Mass\ taken}{Molar\ mass}[/tex]
Thus,
[tex]Moles= \frac{4.89\ g}{30.9738\ g/mol}[/tex]
[tex]Moles_{P}= 0.158\ mol[/tex]
According to the reaction shown below as:-
[tex]4P_{(s)}+5O_2_{(g)}\rightarrow 2P_2O_5_{(s)}[/tex]
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 [tex]\frac{2}{4}\times 0.158[/tex] 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
