Search found 100 matches
- Sun Mar 15, 2020 7:46 am
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: isochoric
- Replies: 10
- Views: 890
isochoric
what is the difference between isochoric and isometric?
- Sun Mar 15, 2020 7:45 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: H2O
- Replies: 44
- Views: 1898
H2O
When do we include H2O and when do we exclude it from the ice table
- Sun Mar 15, 2020 7:44 am
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: method
- Replies: 4
- Views: 433
method
which method are we using/is easier?
- Sun Mar 15, 2020 7:43 am
- Forum: Second Order Reactions
- Topic: 2nd order
- Replies: 6
- Views: 561
2nd order
How can you tell something is 2nd order?
- Sun Mar 15, 2020 7:42 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: exam order
- Replies: 2
- Views: 226
exam order
Does the reaction order matter in the Arrhenius equation?
- Sun Mar 15, 2020 7:40 am
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: R
- Replies: 3
- Views: 313
R
which R do you use in the nernst equation and why
- Sun Mar 15, 2020 7:39 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess Law
- Replies: 10
- Views: 1617
Hess Law
To clarify, you add all the equations together but multiply the values?
- Sun Mar 15, 2020 7:37 am
- Forum: Zero Order Reactions
- Topic: 0 order
- Replies: 7
- Views: 645
0 order
How do you recognize that something is zero order?
- Sun Mar 15, 2020 7:36 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: platinum
- Replies: 4
- Views: 356
platinum
How do you know which side the platinum bar goes on in the cell diagram?
- Sun Mar 15, 2020 7:35 am
- Forum: Van't Hoff Equation
- Topic: usage
- Replies: 9
- Views: 522
usage
what is the van’t hoff equation used for?
- Sun Mar 15, 2020 7:34 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: elementary step
- Replies: 3
- Views: 289
elementary step
What does it mean for a step to be elementary or non elementary?
- Sat Mar 14, 2020 6:55 pm
- Forum: Method of Initial Rates (To Determine n and k)
- Topic: order of reaction
- Replies: 6
- Views: 562
order of reaction
How can you tell what the reaction order is?
- Sat Mar 14, 2020 6:53 pm
- Forum: Calculating Work of Expansion
- Topic: work
- Replies: 3
- Views: 322
work
what is the difference between reversible and irreversible and how does that change the equations?
- Sat Mar 14, 2020 6:52 pm
- Forum: General Rate Laws
- Topic: Rate Law
- Replies: 6
- Views: 552
Rate Law
whats the difference between differential rate law and an integrated rate law?
- Sat Mar 14, 2020 6:47 pm
- Forum: Balancing Redox Reactions
- Topic: oh
- Replies: 11
- Views: 778
oh
Can you use OH to add oxygen instead of H2O?
- Sat Mar 14, 2020 6:46 pm
- Forum: Balancing Redox Reactions
- Topic: balancing h and o
- Replies: 7
- Views: 524
balancing h and o
Is there a specific order you should balance the hydrogens and oxygens?
- Sat Mar 14, 2020 6:45 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: k
- Replies: 4
- Views: 392
k
why does the temperature change k?
- Sat Mar 14, 2020 6:42 pm
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: w
- Replies: 12
- Views: 748
w
do you need Avogadro's number to find degeneracy?
- Sat Mar 14, 2020 6:40 pm
- Forum: Van't Hoff Equation
- Topic: ln
- Replies: 34
- Views: 1784
ln
when you multiply e to the sides to get rid of ln is e multiplied to the other side or is it e to the power of the other side?
- Sat Mar 14, 2020 6:39 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: intensive vs extensive
- Replies: 12
- Views: 771
intensive vs extensive
what is the difference between the two and why is it important to know the difference?
- Sat Mar 14, 2020 6:34 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: steady state
- Replies: 2
- Views: 198
steady state
how do we use the steady-state method?
- Sat Mar 14, 2020 6:33 pm
- Forum: Phase Changes & Related Calculations
- Topic: expansion
- Replies: 5
- Views: 498
expansion
how can you tell if there is expansion?
- Sat Mar 14, 2020 6:32 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: negative sign
- Replies: 12
- Views: 631
negative sign
why is there a negative sign in front of n in the standard Gibbs energy equation?
- Sat Mar 14, 2020 6:31 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: K
- Replies: 2
- Views: 251
K
what does using k in the Nernst equation symbolize?
- Fri Mar 13, 2020 2:30 am
- Forum: Phase Changes & Related Calculations
- Topic: phase change
- Replies: 6
- Views: 516
phase change
how can you tell if there has been a phase change?
- Fri Mar 13, 2020 2:29 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: calorimetry
- Replies: 9
- Views: 605
calorimetry
what is the difference between the regular and the bomb calorimeter and how do the equations change to accommodate the difference?
- Fri Mar 13, 2020 2:27 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: F in the equation for standard Gibbs energy
- Replies: 4
- Views: 374
F in the equation for standard Gibbs energy
what does F represent?
- Fri Mar 13, 2020 2:26 am
- Forum: Balancing Redox Reactions
- Topic: OH vs H
- Replies: 12
- Views: 873
OH vs H
Can you ever use H+ to balance the equation in a basic solution?
- Fri Mar 06, 2020 12:11 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: non ideal gases
- Replies: 6
- Views: 615
non ideal gases
is n the amount of electrons transferred in the redox equation?
- Fri Mar 06, 2020 12:11 am
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Equilibrium Constants
- Replies: 3
- Views: 238
Equilibrium Constants
How can you determine the standard cell potential if it's not given? Can you plug in an alternative equation?
- Fri Mar 06, 2020 12:10 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: galvanic cells
- Replies: 8
- Views: 606
galvanic cells
How can you tell which is the anode vs cathode if the cell potential is given?
- Sun Mar 01, 2020 2:12 pm
- Forum: Balancing Redox Reactions
- Topic: H+ or H2O
- Replies: 9
- Views: 587
H+ or H2O
When do you add H+ rather than add H2O?
- Sun Mar 01, 2020 2:11 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Galvanic Cells
- Replies: 6
- Views: 417
Galvanic Cells
Is the E of galvanic cells always positive?
- Sun Mar 01, 2020 2:10 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: non ideal gases
- Replies: 1
- Views: 122
non ideal gases
How do you find n?
- Fri Feb 14, 2020 1:35 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Constant Pressure and Volume
- Replies: 6
- Views: 426
Constant Pressure and Volume
what is the difference in calculation of a constant pressure system vs a constant volume system?
- Fri Feb 14, 2020 1:34 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Standard Enthalpies of Formation
- Replies: 10
- Views: 518
Standard Enthalpies of Formation
Are there some Standard Enthalpies of Formation that are 0 or is that for something else?
- Fri Feb 14, 2020 1:33 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Pressure and Moles
- Replies: 7
- Views: 412
Pressure and Moles
When counting moles for which way the equilibrium shifts, do you just count the coefficients or do you need to multiply that with the subscripts as well?
- Fri Feb 14, 2020 1:31 pm
- Forum: Ideal Gases
- Topic: ideal gas
- Replies: 5
- Views: 340
ideal gas
What constitutes as an ideal gas?
- Fri Feb 14, 2020 1:31 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: K
- Replies: 12
- Views: 648
K
How do you know what to include and exclude when calculating K?
- Wed Jan 29, 2020 10:30 am
- Forum: Ideal Gases
- Topic: Temperature
- Replies: 17
- Views: 734
Temperature
Do you need to convert the temperature to Kelvin?
- Wed Jan 29, 2020 10:29 am
- Forum: Ideal Gases
- Topic: density
- Replies: 5
- Views: 392
density
how can you use density in PV=nRT?
- Wed Jan 29, 2020 10:28 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Volume and Pressure
- Replies: 8
- Views: 247
Volume and Pressure
How are volume and pressure related?
- Wed Jan 29, 2020 10:27 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: approximation
- Replies: 4
- Views: 173
approximation
when can you approximate that x is 0?
- Wed Jan 29, 2020 10:27 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Equilibrium Constants
- Replies: 2
- Views: 148
Equilibrium Constants
whats the difference between ka and kb?
- Wed Jan 29, 2020 10:25 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Work
- Replies: 2
- Views: 124
Work
Why do you need to use different equations for irreversible and reversible work?
- Wed Jan 29, 2020 10:21 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: temperature
- Replies: 4
- Views: 149
temperature
do you have to convert to kelvin for the q=mcdeltat equation?
- Wed Jan 29, 2020 10:20 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Bomb Calorimetry
- Replies: 2
- Views: 118
Bomb Calorimetry
What is the bomb calorimetry for?
- Wed Jan 29, 2020 10:19 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Temperature
- Replies: 6
- Views: 383
Temperature
why does adding heat to an exothermic reaction drive it the other way?
- Wed Jan 29, 2020 10:16 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Temperature
- Replies: 14
- Views: 522
Temperature
Is a negative delta H exothermic or endothermic?
- Wed Jan 29, 2020 10:16 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Moles
- Replies: 8
- Views: 521
Moles
When determining which side has more moles, do you account for the subscripts and the coefficients or just the coefficients?
- Wed Jan 29, 2020 10:14 am
- Forum: Ideal Gases
- Topic: ideal gases
- Replies: 14
- Views: 907
ideal gases
What are the qualifications of being an ideal gas?
- Wed Jan 29, 2020 10:13 am
- Forum: Ideal Gases
- Topic: non ideal gases
- Replies: 8
- Views: 436
non ideal gases
What are some non ideal gases?
- Wed Jan 29, 2020 10:11 am
- Forum: Lewis Acids & Bases
- Topic: Lewis acid and bases
- Replies: 5
- Views: 390
Lewis acid and bases
How can you tell a Lewis acid or base?
- Wed Jan 29, 2020 10:10 am
- Forum: Identifying Acidic & Basic Salts
- Topic: acidic and basic salts
- Replies: 3
- Views: 231
acidic and basic salts
How can you tell what salt will affect ph?
oxidation
how does the oxidation number play a role in naming?
- Sun Dec 01, 2019 11:49 pm
- Forum: *Molecular Orbital Theory Applied To Transition Metals
- Topic: naming
- Replies: 1
- Views: 633
naming
what is the naming sequence?
- Sun Dec 01, 2019 11:48 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: chelate
- Replies: 5
- Views: 372
chelate
What is a chelate/chelating ligand?
- Sun Dec 01, 2019 11:47 pm
- Forum: Biological Examples
- Topic: cisplatin
- Replies: 3
- Views: 205
cisplatin
what is the biological significance of cisplatin?
- Sun Dec 01, 2019 11:46 pm
- Forum: *Molecular Orbital Theory Applied To Transition Metals
- Topic: bond order
- Replies: 7
- Views: 929
bond order
what specifically about bond order should we know for the final?
- Sun Dec 01, 2019 11:45 pm
- Forum: *Molecular Orbital Theory Applied To Transition Metals
- Topic: coordination sphere
- Replies: 1
- Views: 610
coordination sphere
how do I indicate something is in the coordination sphere and what does being in the coordination sphere mean?
- Sun Dec 01, 2019 11:42 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: neutralization
- Replies: 4
- Views: 245
neutralization
what does neutralization form?
- Sun Dec 01, 2019 11:40 pm
- Forum: Bronsted Acids & Bases
- Topic: bronsted vs lewis
- Replies: 2
- Views: 78
bronsted vs lewis
What is the difference between bronsted and lewis acid and bases and which is more common?
- Sun Dec 01, 2019 11:38 pm
- Forum: Properties & Structures of Inorganic & Organic Bases
- Topic: strong and weak acid and bases
- Replies: 2
- Views: 174
strong and weak acid and bases
Should we be memorizing the strong and weak acids and bases, and if so, which ones?
- Sun Dec 01, 2019 11:36 pm
- Forum: Amphoteric Compounds
- Topic: amphiprotic and amphoteric
- Replies: 9
- Views: 692
amphiprotic and amphoteric
What is the difference between amphiprotic and amphoteric?
- Sun Dec 01, 2019 11:36 pm
- Forum: Amphoteric Compounds
- Topic: Amphoteric Compounds
- Replies: 2
- Views: 95
Amphoteric Compounds
How can you tell if something is amphoteric?
- Sun Nov 17, 2019 9:09 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: polarity
- Replies: 3
- Views: 168
polarity
how can you tell if a bond is polar or non polar?
- Sun Nov 17, 2019 9:07 pm
- Forum: Hybridization
- Topic: d orbital
- Replies: 3
- Views: 239
d orbital
how does the introduction of the d orbital affect bond formation?
- Sun Nov 17, 2019 9:05 pm
- Forum: Hybridization
- Topic: hybridized
- Replies: 1
- Views: 85
hybridized
what does it mean when it says an atom become hybridized?
- Sun Nov 17, 2019 9:02 pm
- Forum: Hybridization
- Topic: Hybridization
- Replies: 2
- Views: 162
Hybridization
How do you find the hybridization of the neighboring atoms?
- Sun Nov 17, 2019 9:01 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Lone Pairs
- Replies: 10
- Views: 513
Lone Pairs
Why do lone pairs affect molecular geometry?
- Tue Nov 12, 2019 2:10 pm
- Forum: Electronegativity
- Topic: electronegativity
- Replies: 5
- Views: 419
electronegativity
What's the cut off point between polar and nonpolar in terms of electronegativity?
- Tue Nov 12, 2019 2:08 pm
- Forum: Octet Exceptions
- Topic: expanded octet
- Replies: 7
- Views: 632
expanded octet
When can you assume the octet can expand?
- Tue Nov 12, 2019 2:07 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: formal charge
- Replies: 6
- Views: 490
formal charge
How can you determine the formal charge without the equation?
- Tue Nov 12, 2019 2:06 pm
- Forum: Sigma & Pi Bonds
- Topic: Sigma and Pi Bonds
- Replies: 8
- Views: 501
Sigma and Pi Bonds
What are different about Sigma and Pi bonds?
- Tue Nov 12, 2019 2:05 pm
- Forum: Dipole Moments
- Topic: Dipoles
- Replies: 2
- Views: 115
Dipoles
When and why do dipoles occur?
- Sun Nov 03, 2019 9:30 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: formal charge
- Replies: 4
- Views: 158
formal charge
how do you find the formal charge and what is it used for?
- Sun Nov 03, 2019 9:29 pm
- Forum: Octet Exceptions
- Topic: Octet Exceptions
- Replies: 7
- Views: 404
Octet Exceptions
Which elements don't follow the octet rule and why?
- Sun Nov 03, 2019 9:29 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Strength and Electronegativity
- Replies: 3
- Views: 239
Bond Strength and Electronegativity
How are bond strength and electronegativity related?
- Sun Nov 03, 2019 9:28 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: formal charge
- Replies: 5
- Views: 183
formal charge
Why when the formal charge is closer to 0 is the structure more stable?
- Sun Nov 03, 2019 9:27 pm
- Forum: Resonance Structures
- Topic: Resonance Structures
- Replies: 1
- Views: 107
Resonance Structures
Why are molecules with resonance more stable?
- Sun Oct 27, 2019 11:17 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Spins
- Replies: 1
- Views: 132
Spins
Are the spins all either -1/2 or +1/2?
- Sun Oct 27, 2019 11:16 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: F orbital
- Replies: 1
- Views: 101
F orbital
Why does the f orbital start at 4?
- Sun Oct 27, 2019 11:15 pm
- Forum: Trends in The Periodic Table
- Topic: Ionization Energy
- Replies: 5
- Views: 326
Ionization Energy
Why does ionization energy increase as you go from left to right even though more electrons are added?
- Sun Oct 27, 2019 11:14 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Penetration
- Replies: 1
- Views: 134
Penetration
What are the effects of penetration?
- Mon Oct 21, 2019 5:39 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Spin Quantum Number
- Replies: 4
- Views: 355
Spin Quantum Number
Why is the spin number important and what's the difference between up and down?
- Mon Oct 21, 2019 5:36 pm
- Forum: *Shrodinger Equation
- Topic: Schrodinger Equation
- Replies: 2
- Views: 146
Schrodinger Equation
what does Ψ mean and how is it used in the equation?
- Mon Oct 21, 2019 5:34 pm
- Forum: Einstein Equation
- Topic: units
- Replies: 1
- Views: 111
units
what is keV the unit for?
- Mon Oct 21, 2019 5:33 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: spins
- Replies: 4
- Views: 156
spins
How do you know if the spin is up or down?
- Mon Oct 21, 2019 5:33 pm
- Forum: Photoelectric Effect
- Topic: Intensity of Light
- Replies: 4
- Views: 148
Intensity of Light
Why does increasing intensity not eject an electron?
- Mon Oct 21, 2019 5:28 pm
- Forum: Trends in The Periodic Table
- Topic: Atomic Radii
- Replies: 10
- Views: 536
Atomic Radii
Why does atomic radii decrease even though the number of protons increase as you go across a period?
- Sun Oct 13, 2019 7:57 pm
- Forum: Properties of Electrons
- Topic: Balmer and Lyman series
- Replies: 1
- Views: 86
Balmer and Lyman series
What are the differences between the Balmer and Lyman series besides one of them being the visible region and the UV region?
- Sun Oct 13, 2019 7:55 pm
- Forum: Photoelectric Effect
- Topic: Threshold Energy
- Replies: 4
- Views: 220
Threshold Energy
Does the threshold energy vary depending on the element?
- Sun Oct 13, 2019 7:50 pm
- Forum: Einstein Equation
- Topic: E=hv
- Replies: 5
- Views: 199
E=hv
Can E=hv be used to calculate the energy required to remove an electron?
- Sun Oct 13, 2019 7:47 pm
- Forum: DeBroglie Equation
- Topic: De Broglie's Equation
- Replies: 17
- Views: 551
De Broglie's Equation
Why cant the De Broglie's equation be used for light?
- Sun Oct 13, 2019 7:45 pm
- Forum: Photoelectric Effect
- Topic: electrons
- Replies: 2
- Views: 212
electrons
How do electrons have wave-like properties, but at the same time have particle-like behavior?
- Fri Oct 04, 2019 6:43 pm
- Forum: Empirical & Molecular Formulas
- Topic: Chemical Formulas
- Replies: 3
- Views: 285
Chemical Formulas
When writing the empirical or molecular formula, does it matter which order the elements are in?
- Fri Oct 04, 2019 6:39 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: atomic weight, molecular weight, and formula weight
- Replies: 2
- Views: 302
atomic weight, molecular weight, and formula weight
How are atomic weight, molecular weight, and formula weight different?
- Thu Oct 03, 2019 3:41 pm
- Forum: Balancing Chemical Reactions
- Topic: State Symbols
- Replies: 5
- Views: 320
State Symbols
When writing chemical equations, should we include all the states of matter?
- Thu Oct 03, 2019 3:38 pm
- Forum: Significant Figures
- Topic: Sig Figs and Rounding
- Replies: 4
- Views: 315
Sig Figs and Rounding
Is it best to leave as many decimal places as possible during the steps and round sig figs at the end or would it be better to just round to the number of sig figs at each step?
- Thu Oct 03, 2019 2:22 pm
- Forum: Empirical & Molecular Formulas
- Topic: Molecular Formula
- Replies: 1
- Views: 143
Molecular Formula
If you're given the molecular mass for the compound and the mass percentages can you multiply the percentages into the molecular mass and find the grams of each compound that way or do you have to assume 100g?