Ethane (C2H6), ethylene (C2H4), acetylene (C2H2). Give the lewis
structure, VSEPR shape, bond angles, molecular dipole,...
Ethane (C2H6), ethylene (C2H4), acetylene (C2H2). Give the lewis
structure, VSEPR shape, bond angles, molecular dipole, valence bond
sketch, hybridization of each carbon atom, sigma and pi bonds for
each of the three substances above.
(a) Draw Lewis structure for ethane (C2H6), ethylene (C2H4) and acetylene (C2H2) (b) What is the hybridization of the carbon atoms in each molecule? (c) How many sigma and pi bonds are in each molecule?
PART A.
Acetylene, C2H2, can be converted to ethane, C2H6, by a process
known as hydrogenation. The reaction is
C2H2(g)+2H2(g)⇌C2H6(g)
All pressures equal to 1 atm and the common reference
temperature 298 K, What is Kp?
Substance
ΔG∘f
(kJ/mol)
C2H2(g)
209.2
H2(g)
0
C2H6(g)
−32.89
PART B.
At 25 ∘C the reaction from Part A has a composition as shown in
the table below.
Substance
Pressure
(atm)
C2H2(g)
4.95
H2(g)
5.65
C2H6(g)
1.25×10−2
What is the free energy change, ΔG,...
63. Ethylene, C2H4, used to make polyethylene plastics, can be
made from ethane, C2H6, one of the components of natural gas. The
heat of reaction for the decomposition of ethane gas into ethylene
gas and hydrogen gas is 136.94 kJ per mole of C2H4 formed, so it is
endothermic. The reaction is run at high temperature, in part
because at 800-900 °C, the equilibrium constant for the reaction is
much higher, indicating that a higher percentage of products forms
at...
Predict all bond angles and the shape of the molecules and
ions. (draw Lewis structure first)
BF4-
HCO3-
CH3CHO
CH3COOH. 2.Indicate the polarity of the following
molecules. Draw Lewis structure and point out the polarity of each
chemical bond and then point our the polarity of the molecule.
CH2Cl2
HCN
H2O2
CH3CN
For each of the following molecules, predict the molecular
shape, give bond angles, hybridization and determine whether the
molecule will be polar or non-polar.
a. CF4
b. BeH2
c. SeF6
d. XeOF2
1. Draw the Lewis structure, determine the molecular
geometry and electronic geometry, hybridization, and bond angles of
the following molecules: ICl2-, SnCl3-
2. Draw the energy diagram for aluminum and indicate
which ones are the valence shell orbitals. Then draw the
hybridization orbitals if the atom was sp hybridized
Acetylene, C2H2 and N2F2 have similar formulas. Draw the
Lewis dot structure for each and identify the hybrid orbitals used
by C and N respectively. Also determine the type , σ and/or π, and
number of bonding used for each molecule.