## Search found 100 matches

Sun Mar 15, 2020 7:46 am
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: isochoric
Replies: 5
Views: 230

### 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: 285

### 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: 149

### 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: 246

### 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: 70

### 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: 93

### 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: 6
Views: 135

### 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: 167

### 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: 92

### 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: 1
Views: 93

### 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: 2
Views: 82

### 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: 154

### 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: 111

### 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: 2
Views: 127

### 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: 268

### oh

Sat Mar 14, 2020 6:46 pm
Forum: Balancing Redox Reactions
Topic: balancing h and o
Replies: 7
Views: 183

### 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: 118

### 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: 1
Views: 77

### 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: 9
Views: 191

### 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: 7
Views: 207

### 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
Replies: 2
Views: 35

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: 154

### 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: 6
Views: 181

### 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: 93

### 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: 188

### 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: 6
Views: 154

### 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: 127

### 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: 200

### 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: 130

### 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: 100

### 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: 157

### 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: 155

### H+ or H2O

Sun Mar 01, 2020 2:11 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Galvanic Cells
Replies: 6
Views: 73

### 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: 32

### 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: 145

### 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: 189

### 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: 89

### 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: 167

### 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: 193

### 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: 174

### 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: 218

### 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: 104

### 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: 48

### 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: 41

### 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: 34

### 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: 33

### 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: 37

### 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: 118

### 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: 181

### 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: 173

### 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: 375

### 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: 115

### 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: 138

### 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: 108

### acidic and basic salts

How can you tell what salt will affect ph?
Sun Dec 01, 2019 11:50 pm
Forum: Naming
Topic: oxidation
Replies: 8
Views: 134

### 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: 124

### naming

what is the naming sequence?
Sun Dec 01, 2019 11:48 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: chelate
Replies: 5
Views: 69

### chelate

What is a chelate/chelating ligand?
Sun Dec 01, 2019 11:47 pm
Forum: Biological Examples
Topic: cisplatin
Replies: 3
Views: 48

### 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: 3
Views: 155

### 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: 83

### 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: 86

### neutralization

what does neutralization form?
Sun Dec 01, 2019 11:40 pm
Forum: Bronsted Acids & Bases
Topic: bronsted vs lewis
Replies: 2
Views: 35

### 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: 120

### 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: 141

### 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: 47

### 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: 52

### 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: 68

### 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: 35

### 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: 74

### 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: 128

### Lone Pairs

Why do lone pairs affect molecular geometry?
Tue Nov 12, 2019 2:10 pm
Forum: Electronegativity
Topic: electronegativity
Replies: 5
Views: 188

### 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: 301

### 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: 212

### 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: 135

### 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: 37

### 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: 59

### 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: 129

### 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: 46

### 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: 79

### 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: 61

### 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: 48

### 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: 48

### 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: 83

### 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: 53

### 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: 74

### 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: 83

### 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: 71

### 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: 80

### 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: 71

### Intensity of Light

Why does increasing intensity not eject an electron?
Mon Oct 21, 2019 5:28 pm
Forum: Trends in The Periodic Table
Replies: 10
Views: 143

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: 36

### 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: 65

### 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: 100

### 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: 277

### 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: 70

### 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: 98

### 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: 99

### 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: 173

### 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: 129

### 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: 87

### 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?