is the Geometry of the Methane Molecule?
simplest hydrocarbon , methane is a gas with a chemical formula of CH4
and a molecular weight of 16.04.
about 3D molecules -- Our files on this page now
use Jsmol instead of Jmol. These files make
on tablets, phones and easier use on Macs. - Jsmol
is best viewed with the Chrome browser. For the
jmol file go to methane_jmol
structure shown using the Jsmol]
to wireframe first:
on right mouse button over box
--> Schemes --> wireframe
Style -->Label ---> atom number
the following angles:
measure angles: hold left mouse bottom over atom and double click on atom 1, drag
to second atom (center atom) single click center atom, drag and double click atom
Below is shown the
when you rotate the methane molecule it is off-center. Click on the tools pulldown
and select 'pickcenter'. Click the center carbon atom in the methane molecule.
Now rotate the methane molecule. It should rotate around the center carbon atom.
stucture would you think the methane molecule best represents? Click on the tetrahedron
box. Now rotate the object to show how the molecule fits snugly within the tetrahedron.
rotate object hold left mouse button down and slide cursor arrow over object|
is a principal component of natural gas. When a single molecule of methane is
burned in the presence of oxygen releases one molecule of CO2[carbon dioxide)
and two molecules of H2O (water).
+ 2O2 ---> CO2 + 2H2O
strength of the carbon hydrogen covalent bond in methane is among the strongest
in all hydrocarbons.
methane is odorless, but when used as a fuel it is usually mixed with small quantities
of strongly-smelling sulfur compounds such as ethyl mercaptan to enable the detection
is a greenhouse gas with a global warming potential of 22 (meaning that it has
22 times the warming ability of carbon dioxide). Methane results from the decomposition
of certain organic matters in the absence of oxygen. It is therefore also classified
as a biogas.
1) What is the measurement
for any of the H-C-H angle ?
Please enter your
answer in the space provided:
2) What is the measure of the C-H bond in methane?
3)How many faces does a tetrahedron