Electron and Molecular Geometry
Determine the electron geometry (eg) and molecular geometry (mg) of SF₄.
What is eg=trigonal bipyramidal, mg=see-saw?
Give the hybridization for the C in CO₂.
What is sp?
Place the following compounds in order of increasing strength of intermolecular forces: CH₄, CH₃CH₂CH₃, CH₃CH₃.
What is CH₄ < CH₃CH₃ < CH₃CH₂CH₃?
Calculate the atomic mass of boron if boron has 2 naturally occurring isotopes with the following masses and natural abundances: B-10: 10.0129 amu, 19.9%; B-11: 11.0093 amu, 80.1%.
What is 10.81 amu?
Choose the compound below that contains at least one polar covalent bond but is nonpolar.
a. CO₂
b. CH₃Cl
c. NH₃
d. O₂
e. both a and b are nonpolar and contain a polar covalent bond
a. CO₂
Determine the electron geometry, molecular geometry, and polarity of PCl₅.
What is eg=trigonal bipyramidal, mg=trigonal bipyramidal, nonpolar?
Give the hybridization for the central atom in SF₆.
What is sp³d²?
Place the following substances in order of decreasing boiling point: H₂O, N₂, CO.
What is H₂O > CO > N₂?
What is the molar mass of Fe₂(SO₄)₃?
What is 399.9 g/mol?
Describe a pi bond.
What is side by side overlap of p orbitals?
Determine the electron geometry (eg) and molecular geometry (mg) of XeF₄.
What is eg=octahedral, mg=square planar?
Determine the hybridization of the nitrogen atom in NH₃.
What is sp³?
In liquid ethanol, CH₃CH₂OH, which intermolecular forces are present?
What is dispersion, hydrogen bonding and dipole-dipole forces?
Calculate the molar mass of glucose (C₆H₁₂O₆).
What is 180.16 g/mol?
In liquid methanol, CH₃OH, which intermolecular forces are present?
a. Dispersion, hydrogen bonding and dipole-dipole forces are present.
b. Only dipole-dipole and ion-dipole forces are present.
c. Only dispersion and dipole-dipole forces are present.
d. Only hydrogen bonding forces are present.
e. Only ion-dipole forces are present.
a. Dispersion, hydrogen bonding and dipole-dipole forces are present.
Determine the electron geometry (eg) and molecular geometry (mg) of NH₃.
What is eg=tetrahedral, mg=trigonal pyramidal?
Determine the hybridization of the carbon atoms in ethene (C₂H₄).
What is sp²?
Which of the following molecules has the strongest hydrogen bonding: H₂O, NH₃, HF?
What is H₂O?
Calculate the molar mass of calcium carbonate (CaCO₃).
What is 100.09 g/mol?
What are the missing coefficients to balance the equation below?
_C₃H₈(g) + _O₂(g) → _CO₂(g) + _H₂O(l)
1 C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(l)
Determine the electron geometry (eg) and molecular geometry (mg) of CO₂.
What is eg=linear, mg=linear?
Consider the molecule acetylene (C₂H₂). Determine the hybridization at each of the 2 carbon atoms.
What is C1 = sp, C2 = sp?
Which type of intermolecular force is the strongest?
What is hydrogen bonding?
Calculate the molar mass of ammonium nitrate (NH₄NO₃).
What is 80.05 g/mol?
How many of each type of atoms does the compound Ca₃(PO₄)₂ contain?
a. 3 calcium, 1 phosphorus, and 4 oxygen
b. 3 calcium, 2 phosphorus, and 4 oxygen
c. 3 calcium, 3 phosphorus, and 4 oxygen
d. 3 calcium, 1 phosphorus, and 8 oxygen
e. 3 calcium, 2 phosphorus, and 8 oxygen
e. 3 calcium, 2 phosphorus, and 8 oxygen