Question

Compound of phosphorus and chloride containing "16.67% of phosphorus by mole"

Answer 1

Phosphorus trichloride is a chemical compound of phosphorus and chlorine, having the chemical formula PCl3. It has a trigonal pyramidal shape.Both H_3PO_2H3PO2 and H_3PO_3H3PO3 have 1 \ atom1 atom of phosphorous  (P)(P) per molecule. Mass of 1 mole atom is equal to molar mass of atom which is 31 g31g for phosphorous.

Molecular weight of H_3PO_2 = 66H3PO2=66

mass percent of oxygen is =\dfrac {32}{66} \times 100= 48.4\%=6632×100=48.4%

mass percent of phosphorous is =\dfrac {31}{66}\times 100 = 46.5\%=6631×100=46.5%

 Molecular weight of H_3PO_3 = 82H3PO3=82

mass percent of oxygen is =\dfrac {48}{82} \times 100= 58.5\%=8248×100=58.5%

mass percent of phosphorous is =\dfrac {31}{82}\times 100 = 37.8\%=8231×100=37.8%

Oxygen has the highest mass percentage in both the compounds.