Which of the following statements is false ?A) To facilitate the trigonal bipyramidal geometry of PF5, the s and three p and one of the d atomic orbitals of the phosphorus atom are hybridized to form 5 equivalent sp3d orbitals that can be arranged in a trigonal bipyramidal geometry and can be overlapped with the unhybridized p atomic orbitals of the fluorine atoms to form five sigma bonds. B) cis- and trans- isomers of a molecule such as C2H2Cl2 result because of the inability to rotate the C=C bond due to the presence of a pi bond between the carbon atoms. C) In the molecule NCl3 the nitrogen atom is hybridized sp3 but the lone pair of electrons on the N atom reside in unhybridized p orbitals of the N atom rather than in one of the sp3 hybrid orbitals. D) A sigma bond results from the end-to-end overlap of atomic orbitals, which is a more energetically stable overlap than the pi bond’s side-to-side overlap of atomic orbitals. E) A triple bond contains one sigma bond and two pi bonds.

Since the gas in your graduated cylinder is a mixture of butane and water vapor, you must determine the partial pressure of the butane, pbutane, alone. to do this, consult a reference and record the partial pressure of the water vapor, pwater, at the temperature you recorded. use the following formula to compute the partial pressure of the butane. pbutane = atmosphere - pwater use the following combined gas law formula and compute the volume that the butane sample will occupy at stp. (hint: convert both temperatures to kelvin.) pbutane x voriginal = pstandard x vfinal troom tstandard use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. grams of butane you used “x” grams of butane ml of butane corrected to stp = 22,400 ml compute the theoretical molar mass of butane based on its formula and the atomic masses on the periodic table. compare your experimental results from #3 to the theoretical value of #4, computing a percent error of your findings using this formula: % error = measured value - accepted value x 100 accepted value use the following ratio and proportion formula to determine the mass of butane needed to occupy a volume of 22.4 l at stp. need asap