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.
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,...
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.
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...
A. Draw Lewis structures for the chloroethyne
molecule (C2HCl), the
ethane molecule
(C2H6), and the
tetrachloroethene molecule
(C2Cl4) in the window below,
and then answer the questions that follow, based on your
drawings.
Draw one structure per sketcher box. Separate added sketchers
with + signs from the dropdown menu
B. What is the bond order of the carbon-
carbon bond in the chloroethyne
molecule?
C. Which species has the longest
carbon-carbon bond,
C2HCl,
C2H6, or
C2Cl4?
D. Which species has...
Ethylene is produced by the dehydrogenation of ethane and the
following reactions took place
C2H6 --> C2H4 +
H2
C2H6 + H2 -->
2CH4
Using molecular
balance. Calculate % Yield of C2H4,
if the % conversion of C2H6 is 80 % and the
selectivity, mole C2H4 per mole
CH4, is 1.75. Calculate also the % composition by mole
of the product gases.
Ethylene is produced by the dehydrogenation of ethane and the
following reactions took place
C2H6 -> C2H4 + H2
C2H6 + H2 -> 2CH4
Using molecular balance. Calculate % Yield of C2H4, if the %
conversion of C2H6 is 80 % and the selectivity, mole C2H4 per mole
CH4, is 1.75. Calculate also the % composition by mole of the
product gases.
Please be thorough and clear in your response.
a) Draw the Lewis Structure for
C2H6.
b) What's its electronic geometry?
c) Molecular geometry?
d) Hybridization of each
carbon?
e) Polar or nonpolar molecule?
f) Draw its 3-D representation.