Catalytic cycle: olefin metathesis (show the complete homogenous
catalytic cycle)
In each find: d electron counts, number of valence electrons,
coordination number, oxidation number, reaction type.
Identify the charge on the transition metal center and the
number of valence d electrons it has.
1.
[Cu(en)2(H2O)2]I2
2.
[Co(NH3)5(NO2)]Cl2
3. [Co(en)2Cl2]Cl-
4. Mo(bipy)(pph3)(CO)3
5. A step in determining Lewis formulas is to find the total
number of valence
electrons that are used in the
formulas. Find such totals for the following:
A. CS2 B. PCl3 C.
SO32- D. CH4 E. Cl2
To
find the oxidation number for a molecule, you use the equation (#
of valence electrons) - (# of credited electrons)
Ex- C2O
Valence electrons- 4
Credited electrons-3
4-3= 1
+I oxidation
What is a “credited” electron and how do you find them?
1. First you need to find the number of valence electrons in
CH3Cl. For counting purposes with Lewis structures, the number of
valence electrons in an atom of a main group element is equal to
the last digit in the group number of that element in the Periodic
Table. C is in Group ____________ H is in Group ____________ Cl is
in Group ____________ In NH2Cl there is a total of ____________
valence electrons.2. The model consists of balls and...
a) number of valence electrons, lewis structure, electron
geometry, molecular geometry, bond angles, polar or non polar :
ICl4^-
B) lewis structure, electron geometry, molecular geometry, polar
or non polar, sketch or molecule: IO3^1, SCN^-, BH3
Write out the complete process of respiration, including
glycolysis, the Kreb's cycle, and electron transport chain, and
oxidative phosphorylation. Highlight every substrate and product
for each stage, and annotate the location of each stage in the
cell.
1)Describe the process you would go through to find the number
of valence electrons for any of the main group (columns 1-8)
elements.2) Although both sugar and salt are soluble in water, the
way in which they dissolve is different. Explain how their
dissolving process is different and elaborate why these differences
exist. 3)Do you think one gram of sucrose or one gram of sodium
chloride will melt at a higher temperature? Explain your answer.
4)
Using chemical nomenclature name...