Question #c6f97

1 Answer
Mar 24, 2017

You do realize that neither PCl_3PCl3 nor "pockle3"pockle3 are room temperature gases don't you? You could easily find the density of liquid POCl_3POCl3, so your given volume is INCORRECT.

Explanation:

Perhaps, we should redo the problem using molar quantities:

PCl_3(l) + 1/2O_2(g) rarr ""^(-)O-P^(+)Cl_3(l)PCl3(l)+12O2(g)OP+Cl3(l)

"Moles of phosphorus trichloride"Moles of phosphorus trichloride == (194*g)/(137.33*g*mol^-1)194g137.33gmol1

=1.41*mol=1.41mol

And thus we would get "1.41 moles of phosphoryl chloride"1.41 moles of phosphoryl chloride ==

=1.41*molxx153.33*g*mol^-1=??=1.41mol×153.33gmol1=??.

Phosphorus trichloride has a normal boiling point of 76.176.1 ""^@CC; pockle3 boils at 105.8105.8 ""^@CC. Of course, both liquids would have vapour pressures, but the question has been poorly proposed.

"Pockle3"Pockle3 has a density of 1.65*g*mL^-11.65gmL1

"Volume"Volume -= "Mass"/"Density"MassDensity

"Volume"Volume == (216.2*g)/(1.65*g*mL^-1)=131*mL216.2g1.65gmL1=131mL.