Complete this sentence: The PCl5 molecule has ________.
a. nonpolar bonds and is a nonpolar molecule
b. nonpolar bonds but is a polar molecule
c. polar bonds and is a polar molecule
d. polar bonds but is a nonpolar molecule
2007-12-26 11:56:34 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Answer is D; the bonds between phosphorous and chlorine are polar , but because the structure of the molecule is trigonal bipyrimidal the net dopole moment is zero.
2007-12-26 12:10:50 · answer #1 · answered by Flying Dragon 7 · 0⤊ 0⤋
I'm doing this without looking at a periodic table. Bear with me.
Phosphourous is on the inside and you have 5 Cl's This is a trigonal bipyramidal molecule stucture. Phosphourous pentachloride is a polar bond but a nonpolar molecule. D.
2007-12-26 12:10:21 · answer #2 · answered by Julie D 2 · 0⤊ 0⤋
d) polar bonds but is a nonpolar molecule
The difference in electronegativity in a Phosphorus-Chlorine bond is 0.97, so the bonds are polar. However, looking at the molecular geometry of the molecule, the bonds cancel out each other because the 5 bonds are at 90° to each other.
2007-12-26 12:09:15 · answer #3 · answered by scherz0 3 · 1⤊ 0⤋
d) polar bonds but is a non-polar molecule
Chlorine is more electronegative than Phosphorus so the bonds are polar
PCl5 has trigonal bipyramidal geometry,the molecule is symmetrical, therefore non-polar
2007-12-26 12:11:32 · answer #4 · answered by Roc_Hoover 3 · 0⤊ 0⤋
Pcl5 Molecule
2016-11-06 19:44:41 · answer #5 · answered by ? 4 · 0⤊ 0⤋