A) Which of the following gasses is most dense at a pressure of 3.4 atm and a te

Question

A) Which of the following gasses is most dense at a pressure of 3.4 atm and a temp of 30°C?
a)1 mol of Cl2
b)0.5 mol of N20
c) 6 mol of H2
d) 3 mol of SO2
e) 1.5 mol Ar
B) the electron-domain geometry of______is tetrahedral. choose all that apply.
a) XeF4
b)CCI2Br2
c)SF4
d)PH3
e)CBr4
C) Polar or non polar: SF2____ SF4______ SF6_____
D) when generating molecular orbitals true or false:
a) each molecular orbital can hold at maximum 2 electrons
b) two atomic orbitals combine to generate a single molecular orbital
c) the larger the overlap of the orbitals, the lower in energy the bonding molecular orbital will be
d) for every bonding orbital there is also an antibonding orbital at higher energy
e) bonding orbitals are generated from the combination of atomic orbitals that are out of phase with one another
f)combination of s orbitals results in formation of delta and pi bomds

Explanation / Answer

A) As per the equation :- P*M = d*R*T ; where P = pressure , M = molar mass of the gas ; R = universal gas constant, T = temperature and d = density

Thus, greater the molar mass of the gas , more denser it is

Hence, Cl2 is most dense

B) CCl2Br2 , PH3 & CBr4 has electron domaun geometry as tetrahedral.

C) SF2 = polar

SF4 = Polar

SF6 = Non-polar

D) a) each molecular orbital can hold at maximum 2 electrons = True
b) two atomic orbitals combine to generate a single molecular orbital = False
c) the larger the overlap of the orbitals, the lower in energy the bonding molecular orbital will be = True
d) for every bonding orbital there is also an antibonding orbital at higher energy = True
e) bonding orbitals are generated from the combination of atomic orbitals that are out of phase with one another = False
f)combination of s orbitals results in formation of delta and pi bomds = False

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.