Electron Group Geometries are electron groups that assume orientations about an atom to
2 groups linear 180
3 trigonal planar 120
5 trigonal bipyramidal 90,120,180
6 octahedral 90, 180
is the geometric distribution of electron groups around an atom
Molecular Group Geometry
is the geometric distribution of the atoms around the an atom.
ex BrF5 electron group is octahedral because it has 6 electron groups
Since it has five attached atoms and one lone pair it gives it a square pyramidal shape.
electron groups are 5 the electron group geometry is trigonal bipyramidal.
Molecular geometry is seesaw.
A weak electrolyte is partially ionized in a water solution.
How to determine if a precipitate forms?
A precipitate is a product formed from a chemical reaction which is NOT soluble in water at that
temp. so it is seen as a solid suspended in the solution.
if this is an experiment you will be able to see the precipitate form as the solution will become
if this is just theory you will have to use the solubility rules: Soluble:
Group I and NH4+ compounds
all chlorides, bromides and iodides (except Ag+, Pb2+, Cu+ and Hg22+)
all sulfates (except Ag+, Pb2+, Ba2+, Sr2+ and Ca2+)
carbonates (except Group I, NH4+ and uranyl compounds)
sulfites (except Group I and NH4+ compounds)
phosphates (except Group I and NH4+ compounds)
hydroxides and oxides (except Group I, NH4+, Ba2+, Sr2+ and Tl+)
sulfides (except Group I, Group II and NH4+ compounds)
Answer is AgCl+ Na+NO3
because nitrates and sodium are soluble unlike ag which says will be insoluble.
If gas pressure and number of molecules stays constant then volume will
As the temperature increases, the average kinetic energy increases as does the velocity of the
gas particles hitting the walls of the container. The force exerted by the particles per unit of area
on the container is the pressure, so as the temperature increases the pressure must also
increase. Pressure is proportional to temperature, if the number of particles and the volume
of the container are constant.
What would happen to the pressure if the number of particles in the container increases and the
temperature remains the same? The pressure comes from the collisions of the particles with the
container. If the average kinetic energy of the particles (temperature) remains the same, the
average force per particle will be the same. With more particles there will be more collisions and
so a greater pressure. The number of particles is propo