Pointy Things & Numbers
This One's Heavy
Formalities
Where Atoms Land
Shapes & Stuff
Coming Attractions
A Recipe for Matter
Stuff Hits Stuff
100
A technique that measures the energy required to remove electrons from atoms in the gas phase
What is photoelectron spectroscopy (PES)?
100
An instrument used to determine atomic mass based on mass-to-charge ratio
What is a mass spectrometer?
100
The difference between valence electrons and electrons assigned in a Lewis structure
What is formal charge?
100
The internuclear distance where attraction balances repulsion
What is bond length?
100
Molecular geometry of SO2
What is bent or angular?
100
Weak IMF present in all molecules
What are London dispersion forces?
100
Ratio used to convert between substances
What is a mole ratio?
100
Relationship between rate and concentration
What is the rate law?
200
The x-axis quantity on a PES spectrum that increases from right to left
What is binding energy?
200
The quantity represented on the y-axis of a mass spectrum
What is relative abundance?
200
A structure minimizing formal charges with negative charge on the most electronegative atom
What is the most stable Lewis structure?
200
Relationship between bond order and bond length
What is higher bond order gives shorter bond length?
200
Electron geometry with four electron domains
What is tetrahedral?
200
IMF responsible for water's high boiling point
What is hydrogen bonding?
200
Reactant consumed first
What is the limiting reactant?
200
Units of k for a first-order reaction
What is s-1?
300
This feature of a PES peak corresponds to the relative number of electrons in a sublevel
What does peak area (or height) represent?
300
The reason chlorine shows two major peaks at m/z ≈ 35 and 37
What is the existence of Cl-35 and Cl-37 isotopes?
300
The correct formal charge on nitrogen in NH4+
What is +1?
300
Depth of potential energy well indicates this property
What is bond energy?
300
The correct number of resonance structures of ozone: O3
What is 2?
300
Strongest IMF in methanol
What is hydrogen bonding?
300
Maximum predicted product mass
What is theoretical yield?
300
Linear 1/[A] vs time plot indicates this order
What is second order?
400
The peak that would appear at the highest binding energy for sodium
What is the 1s electron peak?
400
The calculated value that combines isotopic mass and relative abundance
What is weighted average atomic mass?
400
The justification for drawing multiple valid Lewis structures for nitrate
What is resonance due to electron delocalization?
400
The bond length of Na-Cl according to the green line on this graph
What is ~0.22 nm?
400
The bond angles in this molecule
What is 120o?
400
Property directly affected by IMF strength
What is boiling point? or similar
400
Formula comparing actual to theoretical yield
What is percent yield?
400
Why rate laws cannot come from coefficients
What is rate law must be determined experimentally?
Or What is not all reactions are elementary?
500
The PES for this element looks like this.
What is aluminum?
500
The mass spectrum of this element looks like this
What is neon?
500
Why resonance does not imply oscillation between structures
What is a resonance hybrid representing an average structure?
500
Why breaking a chemical bond requires energy
What is overcoming electrostatic attraction?
500
This is the most realistic bond order for a carbonate ion
CO32-
What is 4/3 or 1.33?
500
The one expected to have the weakest IMF of these two
What is methanol?
500
Mass of CO2 produced from combustion of 10.0g C2H6
What is approximately 29.3 g CO2?
500
The order for a reaction with a constant rate, rate = k
What is zeroth order?