For the molecule PBr3, draw its
Lewis Structure and then answer the following questions based on
that structure. (The central atom in each case is the atom with the
lowest electronegativity).
How many valence electrons are in the molecule? (Remember to add
an electron for each negative charge or to subtract one for each
positive charge).
How many lone pairs of electrons are in the central atom of the
molecule?
What is the electron pair geometry of the molecule?
What...
For each molecule or ion below, indicate whether it is polar or nonpolar. For polar species, clearly indicate the direction of the molecular dipole on a Lewis Structure. CH3F SO2 PH3
1. BHCL2 is a nonpolar molecule. true or false?
2. Determine the correct Lewis dot structure for
PF5
3. Calculate the mass percent of 0.389g of silicon
that reacts with oxygen to form 0.832g of silicon dioxide
(SiO2)
1. Is the CO molecule polar or nonpolar? If polar, which end of
the molecule is delta negative (δ-) and which end of the molecule
is delta positive (δ+)?
a.The molecule is polar; the O end is delta positive and the C
end is delta negative.
b.The molecule is polar; the O end is delta negative and the C
end is delta positive.
c.The molecule is nonpolar; both ends are delta positive.
d.The molecule is nonpolar; both ends are delta...
For each of the following: draw the Lewis structure (use o whenever possible), name the molecular shape, and indicate if it is polar or nonpolar. a. SBr2 b. BrH3 c. SiF4 d. H2Oe. CH3F f. SiO2 g. SO2 h. NI3
For a molecule of Phosphorus trichloride, PCI3:
A) Draw the Lewis structure of this molecule. Using the Pauling
electronegativity scale, determine which bonds are polar; show them
on the structure using the S+/S- notation.
B) Is this molecule polar? Explain briefly why or why not.
C) What type of intermolecular forces should exist between two
PCI3 molecules?
Draw the Lewis structure for SiH4. Draw the molecule by placing
atoms on the grid and connecting them with bonds. Include all lone
pairs of electrons. Include all hydrogen atoms. To change the
symbol of an atom, double-click on the atom and enter the letter of
the new atom.
Draw the Lewis structure for CO. Draw the molecule by placing
atoms on the grid and connecting them with bonds. Include all lone
pairs of electrons.
Draw the Lewis structure for...