| Assessment Questions: 35 results |
Bonding : MatchBondStrength (8 Variations)
Match each of the following molecules to the best energy value for each bond. Do not use the table of bond energies in your book, but predict these values using your knowledge of bond length and bond strength.
Possible energies are: 300 kJ/mol, 330 kJ/mol, 415 kJ/mol and 950 kJ/mol.
Covalent Bonding
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Molecular_Structure : MolecularGeometry (23 Variations)
Which of the following molecules/ions have a linear molecular geometry like the structure shown below?
Be patient. It may take a while for the structure to load.
Covalent Bonding |
VSEPR Theory
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Molecular_Structure : BondAngle (6 Variations)
Which of the following has the smallest H-X-H bond angle?
Covalent Bonding |
VSEPR Theory
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Molecular_Structure : ElectronPairGeometry (20 Variations)
Which of the molecules/ions below have a linear electron-pair geometry?
Covalent Bonding |
VSEPR Theory
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Molecular_Structure : Hybridization (10 Variations)
Which of the following molecules/ions have sp hybridization around the indicated atom?
Covalent Bonding |
MO Theory
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Molecular_Structure : IDNonpolarMolc (10 Variations)
Which of the following molecules is nonpolar?
Covalent Bonding |
VSEPR Theory
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Molecular_Structure : MatchOrganicAngles (10 Variations)
1-amino-2-naphthol-6-sulfonic acid is used as a photographic developer. Its structure is shown below, although lone electron pairs are not shown.
Match the designated bond angles to the appropriate values.
Covalent Bonding |
VSEPR Theory
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Bonding : EnergyBreakAllBonds (10 Variations)
Use the bond energies given in  to determine the total energy needed to break all of the bonds in C3H6. (Do not use ring structures.)
Covalent Bonding |
Calorimetry / Thermochemistry
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Bonding : GeneralResonIsomer (4 Variations)
Which of the following statements is true?
Resonance Theory |
Covalent Bonding
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Bonding : ImpossibleStructure (10 Variations)
Which of the following formulas represent substances that are likely to be stable at ordinary temperature and pressure? A good way to decide is to ask for which of the formulas is it possible to draw a reasonable Lewis structure (one that obeys the usual rules for drawing Lewis structures)?
Lewis Structures |
Covalent Bonding
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Bonding : LewisStructures (10 Variations)
Which of the following Lewis structures are CORRECT?
Lewis Structures |
Covalent Bonding
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Bonding : OctetRuleExceptions (10 Variations)
For which of the following atoms are exceptions to the octet rule possible?
Lewis Structures |
Covalent Bonding
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Bonding : ResonanceStructures (10 Variations)
Select the molecule(s) below for which resonance structures can be drawn.
Resonance Theory |
Covalent Bonding
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Intermolecular_Forces__Liquids_and_Solids : LatticeEnergyMelting (8 Variations)
Which of these substances has the highest melting point?
Ionic Bonding |
Covalent Bonding
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Bonding : CompareBondLength (5 Variations)
Which of the following compounds has the shortest bond between nitrogen and oxygen?
Covalent Bonding |
Molecular Properties / Structure
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Bonding : Electronegativity (8 Variations)
From the bonds listed below, choose the one in which the highlighted atom is the partially positive end of the bond. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
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Bonding : MostPolarBond (8 Variations)
From the bonds listed below, choose the one that is the most polar. (Try to predict electronegativity differences based on positions of the bonded atoms in the periodic table.)
Covalent Bonding |
Periodicity / Periodic Table
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Bonding : OrganicBondLength (10 Variations)
1-amino-2-naphthol-6-sulfonic acid is used as a photographic developer. The structure for this compound is shown below, although lone electron pairs are not shown. Which of the following bonds in the structure is the shortest?
Covalent Bonding |
Periodicity / Periodic Table
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Bonding : IonicOrCovalent (10 Variations)
Match the following formulas to the correct type of bonding: ionic or covalent.
Molecular Properties / Structure |
Covalent Bonding |
Ionic Bonding
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Covalent Bonding (11 Variations)
A collection of 11 assessment questions about Covalent Bonding
Carboxylic Acids |
Acids / Bases |
Resonance Theory |
Covalent Bonding |
Phenols |
Amines / Ammonium Compounds |
Free Radicals |
Alkenes |
Amides |
Ethers
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Thermodynamics : CompareEntropyQual (16 Variations)
Indicate which substance in each of the following pairs of substances you expect to have higher entropy. Assume that you have a mole of each substance and all substances are at the same temperature.
Thermodynamics
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Thermodynamics : PredictEntropyChange (10 Variations)
For each of the following processes, indicate whether you expect the entropy change of the system to be positive or negative.
Thermodynamics
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Thermodynamics : ConservGibbsEnergy (6 Variations)
Which of the following best illustrates conservation of Gibbs free energy?
Thermodynamics
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Thermodynamics : GeneralThermo (6 Variations)
Which of the following statements is an inaccurate statement about thermodynamics?
Thermodynamics
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Thermodynamics : ProbabilityEnergyDist (23 Variations)
Consider a system that has two indistinguishable molecules that can occupy three different energy levels (having energies of 1kJ, 2kJ and 3kJ, respectively). What is the probability that the molecules will have a total energy of 2 kJ?
Thermodynamics
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Thermodynamics : InterpretKandDeltaG (16 Variations)
The thermodynamic equilibrium constant for the following reaction is 0.15 at 1227°C.
2 SO2(g) + O2(g) 
2 SO3(g)
Check the box for each true statement.
Thermodynamics
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Thermodynamics : ThermoKinStability (4 Variations)
Compare white and grey tin, both of which exist as solid phases of tin near room temperature.
| Phase
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 Hof (kJ/mol)
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So (J/(K*mol))
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| white tin
|
0
|
51.5
|
| grey tin
|
-2.1
|
44.8
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Which type of stability does each exhibit at 40 oC?
white tin {1:MULTICHOICE:kinetically stable#No, that's incorrect.~=thermodynamically stable#Correct!}
grey tin {1:MULTICHOICE:=kinetically stable#Correct!~thermodynamically stable#No, that's incorrect.}
Thermodynamics
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Bonding (34 Variations)
A collection of 34 assessment questions about Bonding
Molecular Properties / Structure |
Covalent Bonding |
IR Spectroscopy |
VSEPR Theory |
Aromatic Compounds |
Lewis Structures |
Resonance Theory |
Aldehydes / Ketones |
Carboxylic Acids |
Acids / Bases
|
Thermodynamics : CalcDeltaG (14 Variations)
Using  , calculate the Gibbs free energy change for the following reaction which produces the metal zinc from its ore zinc(II) oxide.
2 ZnO(s)  2 Zn(s) + O2(g)
Thermodynamics |
Chemometrics
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Thermodynamics : CalcDeltaS (9 Variations)
Using , calculate the entropy change for the reaction.
Thermodynamics |
Chemometrics
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Thermodynamics : CalcMinSpontTemp (9 Variations)
Calculate the minimum temperature above which the following reaction will be product-favored (spontaneous).
Thermodynamics |
Chemometrics
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Thermodynamics : DetermineRxnFavored (8 Variations)
When industrial plants burn coal, sulfur dioxide is produced. Sulfur dioxide is a primary pollutant that contributes to both industrial smog and acid rain. Is this process of producing sulfur dioxide product-favored?
Using
Thermodynamics |
Chemometrics
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Thermodynamics : GibbsFromHSandT (5 Variations)
On the space shuttle, the carbon dioxide produced by the astronauts is handled by an environmental control system that utilizes the following reaction.
H° = -138.4 kJ and S° = -139 J/K
Calculate G° at 25°C for this reaction.
Thermodynamics |
Chemometrics
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Thermodynamics : ATPFromGlucose (8 Variations)
When glucose is oxidized in the human body it releases a lot of Gibbs free energy. Rather than waste this free energy, the body stores much of it in the form of ATP. The following reaction shows this process of storing some of the energy from glucose in ATP. This is an example of coupled reactions in a biological system.
The label on a can of Coke says that it contains 39 g of sugar. Assume that all of the sugar is glucose (even though it isn't), and calculate how many moles of ATP can be produced theoretically by the oxidation of 39.0 g of glucose.
Thermodynamics |
Reactions |
Chemometrics
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Thermodynamics : EntropyPhaseChange (13 Variations)
Aluminum can be evaporated in a vacuum to form highly reflective coatings. Aluminum boils at 2792K and has a heat of vaporization of 70.0 kcal/mol. Calculate the entropy change for the vaporization of one mole of aluminum.
Thermodynamics |
Chemometrics |
Phases / Phase Transitions / Diagrams
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