Search found 114 matches
- Sun Mar 15, 2020 11:30 pm
- Forum: Kinetics vs. Thermodynamics Controlling a Reaction
- Topic: Activation Energy and Energy of a Reaction
- Replies: 5
- Views: 111
Re: Activation Energy and Energy of a Reaction
Would a decrease in temperature accordingly lower the value of k?
- Sun Mar 15, 2020 11:29 pm
- Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
- Topic: enthalpy constants?
- Replies: 4
- Views: 239
Re: enthalpy constants?
Which one, 3/2R or 5/2R, corresponds with constant volume and which corresponds with constant pressure?
- Sun Mar 15, 2020 11:27 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: reverse half reaction
- Replies: 4
- Views: 166
Re: reverse half reaction
Why is that? Why is the anode reaction reversed?
- Sun Mar 15, 2020 11:25 pm
- Forum: General Rate Laws
- Topic: Axes labels
- Replies: 6
- Views: 166
Re: Axes labels
What are the labels of a first order reaction?
- Sun Mar 15, 2020 11:23 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Lewis structures
- Replies: 4
- Views: 119
Re: Lewis structures
It is based on the bonds formed and the bonds that are broken. I believe it is (but can someone confirm): the more bonds that are formed - the more exothermic; the more bonds broken - the more endothermic (generally, not always).
- Sat Mar 14, 2020 5:15 pm
- Forum: General Rate Laws
- Topic: half life
- Replies: 5
- Views: 94
Re: half life
Since it takes a certain amount of time to become half of the original value (its half life), it would take double the half-life to get to 1/4 of the original amount.
- Tue Mar 10, 2020 10:00 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Catalysts and Rates
- Replies: 10
- Views: 184
Re: Catalysts and Rates
Do we need to know what examples of common catalysts are?
- Tue Mar 10, 2020 9:30 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Activation Energy
- Replies: 3
- Views: 65
Re: Activation Energy
Also, can someone explain what each term means in the Arrhenius equation, please?
- Tue Mar 10, 2020 9:09 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Determining reaction rate for overall reaction
- Replies: 3
- Views: 61
Re: Determining reaction rate for overall reaction
Just to confirm, the slowest step is the rate-determining step?
- Sun Mar 08, 2020 11:39 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Rate determining step
- Replies: 2
- Views: 47
Re: Rate determining step
Why is the slowest step the rate determining step?
- Sun Mar 08, 2020 10:16 pm
- Forum: General Rate Laws
- Topic: Difference b/w General Rate Laws/Elementary
- Replies: 2
- Views: 78
Re: Difference b/w General Rate Laws/Elementary
Does someone have a good video or link explaining the difference between first order and second order reactions in terms of what is actually happening in the reactions rather than the math associated with either?
- Sun Mar 08, 2020 10:13 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Anode as [product] and cathode as [reactant]?
- Replies: 3
- Views: 49
Re: Anode as [product] and cathode as [reactant]?
Another helpful tip is when looking at the cell diagram, the left side of both the cathode and the anode is the reactants and the right side of both is consequently the products. That is why anode is usually used as the product and cathode as the reactant!
- Sun Mar 08, 2020 10:10 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Arrhenius Equation Variables
- Replies: 4
- Views: 96
Re: Arrhenius Equation Variables
Does the Arrhenius equation simply tell us the effect of temperature on the rate constant?
- Sun Mar 08, 2020 10:07 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Catalysts
- Replies: 8
- Views: 108
Re: Catalysts
What else are the functions of catalysts, besides lowering the activation energy?
- Sun Mar 08, 2020 10:06 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Diagrams
- Replies: 6
- Views: 92
Re: Cell Diagrams
I believe that when the states are the same, you can use commas in place of single lines; whereas, when the states are different, you use single lines.
- Sun Mar 01, 2020 11:36 pm
- Forum: Balancing Redox Reactions
- Topic: half rxn or ionization
- Replies: 3
- Views: 76
Re: half rxn or ionization
How do you find spectator ions in a half reaction?
- Sun Mar 01, 2020 11:35 pm
- Forum: First Order Reactions
- Topic: First Order Reaction
- Replies: 4
- Views: 94
Re: First Order Reaction
Does someone have a good video explaining how to find a first order reaction vs a second?
- Sun Mar 01, 2020 11:34 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Voltage vs Gibbs
- Replies: 2
- Views: 75
Re: Voltage vs Gibbs
Is voltage negative when the gibbs free energy is positive?
- Sun Mar 01, 2020 11:30 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Electromotive force
- Replies: 2
- Views: 57
Re: Electromotive force
What is the electromotive force of a cell?
- Sun Mar 01, 2020 11:25 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Calculating standard cell potentials
- Replies: 2
- Views: 61
Re: Calculating standard cell potentials
Can someone define what exactly a standard cell potential is?
- Sun Feb 23, 2020 7:56 pm
- Forum: Balancing Redox Reactions
- Topic: Steps
- Replies: 7
- Views: 120
Re: Steps
Are you asking about half reactions?
- Sun Feb 23, 2020 7:43 pm
- Forum: Balancing Redox Reactions
- Topic: Half Reactions
- Replies: 12
- Views: 220
Re: Half Reactions
Could someone explain how the reducing agent and the oxidizing agent relate to the half reactions of a redox reaction?
- Sun Feb 23, 2020 7:40 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Concentration effect on E
- Replies: 4
- Views: 76
Re: Concentration effect on E
Could someone explain what exactly E is?
- Sun Feb 23, 2020 7:38 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Electrochemical cells
- Replies: 2
- Views: 72
Re: Electrochemical cells
Does anyone have a good video or link explaining this?
- Sun Feb 23, 2020 7:37 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: cell diagrams
- Replies: 5
- Views: 95
Re: cell diagrams
Also, how do you know which is being reduced and which is being oxidized?
- Sun Feb 23, 2020 7:35 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: 6L.5 b)
- Replies: 5
- Views: 66
Re: 6L.5 b)
What defines an anode?
- Sun Feb 16, 2020 11:03 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Heat Capacity for Calorimeters.
- Replies: 4
- Views: 156
Re: Heat Capacity for Calorimeters.
What is the difference between a calorimeter and a bomb calorimeter?
- Sun Feb 16, 2020 6:55 pm
- Forum: Balancing Redox Reactions
- Topic: Reduction vs. oxidation
- Replies: 29
- Views: 351
Re: Reduction vs. oxidation
Oxidation means that it lost electrons and reduction means that it gained electrons.
- Sun Feb 16, 2020 6:51 pm
- Forum: Calculating Work of Expansion
- Topic: Choosing work equation
- Replies: 10
- Views: 299
Re: Choosing work equation
Does anyone have any helpful links explaining reversible and irreversible processes in relation to work equations?
- Sun Feb 16, 2020 6:49 pm
- Forum: Balancing Redox Reactions
- Topic: Charge of permanganate
- Replies: 5
- Views: 99
Re: Charge of permanganate
Yes, I believe your latter question demonstrates the correct method.
- Sun Feb 16, 2020 6:45 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Differences in (delta)G^o equations
- Replies: 3
- Views: 50
Re: Differences in (delta)G^o equations
K means that the system is in equilibrium and Q means that it is not.
- Sun Feb 16, 2020 6:37 pm
- Forum: Balancing Redox Reactions
- Topic: redox reaction
- Replies: 10
- Views: 122
Re: redox reaction
Oxidation is loosing electrons and reduction is gaining electrons.
- Sun Feb 16, 2020 10:10 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Extensive and Intensive Properties
- Replies: 12
- Views: 310
Re: Extensive and Intensive Properties
Does anyone have a good link explaining extensive properties versus intensive properties with examples?
- Sun Feb 09, 2020 8:45 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Intensive vs. Extensive
- Replies: 15
- Views: 391
Re: Intensive vs. Extensive
Intensive properties do NOT depend on mass, while extensive properties do depend on mass.
- Sun Feb 09, 2020 8:43 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: enthalpy
- Replies: 3
- Views: 82
Re: enthalpy
Also, what does it mean that enthalpy is always heat but heat is not always enthalpy?
- Sun Feb 09, 2020 8:42 pm
- Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
- Topic: 4G.1
- Replies: 3
- Views: 57
Re: 4G.1
What are microstates?
- Sun Feb 09, 2020 8:41 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Volume decrease
- Replies: 7
- Views: 102
Re: Volume decrease
Can someone explain what it means when the reaction shifts one way or another?
- Sun Feb 09, 2020 8:40 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Isothermal and Reversible
- Replies: 6
- Views: 46
Re: Isothermal and Reversible
What exactly does it mean for a process to be reversible?
- Sun Feb 09, 2020 9:42 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Calculating Bond Enthalpies
- Replies: 5
- Views: 72
Re: Calculating Bond Enthalpies
Can someone explain the process of calculating bond enthalpies after drawing the structures?
- Sun Feb 02, 2020 12:56 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Enthalpy vs. Heat
- Replies: 6
- Views: 56
Re: Enthalpy vs. Heat
Does anyone have any good videos explaining enthalpy and the related equations?
- Sun Feb 02, 2020 12:55 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Combustion Reactions
- Replies: 5
- Views: 117
Re: Combustion Reactions
Does anyone have any good videos explaining combustion reactions?
- Sun Feb 02, 2020 12:52 am
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Entropy
- Replies: 4
- Views: 68
Re: Entropy
Does anyone have any good videos explaining entropy?
- Sun Feb 02, 2020 12:51 am
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Calorimetry
- Replies: 4
- Views: 53
Re: Calorimetry
What is the difference between a stand calorimeter and a bomb calorimeter?
- Sun Feb 02, 2020 12:50 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Hess's Law vs Bond Enthalpies vs Standard Enthalpies of Formation
- Replies: 7
- Views: 60
Re: Hess's Law vs Bond Enthalpies vs Standard Enthalpies of Formation
Can someone please define Hess's Law?
- Sat Jan 25, 2020 8:57 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Dimensional Analysis for Molar Heat Capacity
- Replies: 3
- Views: 30
Re: Dimensional Analysis for Molar Heat Capacity
Can someone please define molar heat capacity?
- Sat Jan 25, 2020 8:52 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Bond Enthalpy Method
- Replies: 5
- Views: 45
Re: Bond Enthalpy Method
What is the most accurate way to calculate H?
- Sat Jan 25, 2020 8:40 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Reaction Enthalpy vs Formation Enthalpy??
- Replies: 2
- Views: 48
Re: Reaction Enthalpy vs Formation Enthalpy??
Can someone do the same with all the equations regarding enthalpy and entropy?
- Sat Jan 25, 2020 7:57 pm
- Forum: Phase Changes & Related Calculations
- Topic: Entropy vs Enthalpy
- Replies: 9
- Views: 71
Re: Entropy vs Enthalpy
What does each term relate to in the equation deltaG= deltaH-T*deltaS?
- Sat Jan 25, 2020 7:55 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Ka of strong acid
- Replies: 3
- Views: 45
Re: Ka of strong acid
I believe it will be a lot greater than 1 because there will be an abundance of products compared to reactants; therefore the Ka will be extremely large.
- Mon Jan 20, 2020 3:17 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 6E.1
- Replies: 2
- Views: 27
Re: 6E.1
What is the difference between first protonation and second protonation?
- Mon Jan 20, 2020 3:17 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: pH of salt solutions
- Replies: 2
- Views: 48
Re: pH of salt solutions
What are spectator ions and how do they affect pH?
- Mon Jan 20, 2020 3:16 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Van’t Hoff Equation
- Replies: 4
- Views: 76
Re: Van’t Hoff Equation
What is the Van't Hoff equation?
- Mon Jan 20, 2020 3:16 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Kw temperature
- Replies: 8
- Views: 58
Re: Kw temperature
If the temperature were to change, how would Kw change in response?
- Mon Jan 20, 2020 3:15 pm
- Forum: *Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation)
- Topic: pH of a buffer solution calculation
- Replies: 4
- Views: 532
Re: pH of a buffer solution calculation
How do we calculate the pH of a buffer solution? Are there any good videos explaining this?
- Sun Jan 12, 2020 2:31 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Partial Pressures
- Replies: 4
- Views: 45
Re: Partial Pressures
What are partial pressures?
- Sun Jan 12, 2020 2:30 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Factors Affecting K
- Replies: 5
- Views: 71
Re: Factors Affecting K
What is the difference between Kc and Kp?
- Sun Jan 12, 2020 2:27 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: ICE tables and the quadratic equation [ENDORSED]
- Replies: 3
- Views: 46
Re: ICE tables and the quadratic equation [ENDORSED]
How exactly do you use ICE tables?
- Sun Jan 12, 2020 2:25 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Le Chatelier's Principle
- Replies: 19
- Views: 266
Re: Le Chatelier's Principle
What exactly is Le Chatelier's principle?
- Sun Jan 12, 2020 2:24 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Homogenous Equilibrium
- Replies: 13
- Views: 116
Homogenous Equilibrium
What is homogenous equilibrium?
- Sun Dec 08, 2019 7:52 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Ph and poH of weak acids
- Replies: 8
- Views: 102
Re: Ph and poH of weak acids
I believe this relates to titrations so I think it will be covered later on!
- Sat Dec 07, 2019 4:10 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty in Position
- Replies: 1
- Views: 129
Uncertainty in Position
When using the equation to find the uncertainty in velocity, is the diameter the uncertainty in position?
- Sat Dec 07, 2019 2:11 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Carbonato
- Replies: 1
- Views: 49
Carbonato
Is CO3^2- polydentate?
- Sat Dec 07, 2019 12:27 pm
- Forum: Conjugate Acids & Bases
- Topic: Ammonia and Ammonium
- Replies: 2
- Views: 171
Ammonia and Ammonium
Since ammonia is a weak base, how come ammonium (its conjugate acid) is not a strong acid?
- Sat Dec 07, 2019 9:36 am
- Forum: Calculating the pH of Salt Solutions
- Topic: pH Sig Figs
- Replies: 4
- Views: 73
Re: pH Sig Figs
The number of numbers after the decimal when finding pH should be equal to the number of sig figs.
- Thu Dec 05, 2019 8:35 am
- Forum: Amphoteric Compounds
- Topic: Water
- Replies: 1
- Views: 33
Water
When does water act as an acid and when does it act as a base?
- Thu Dec 05, 2019 2:17 am
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Determining the Strength of an Oxoacid
- Replies: 1
- Views: 68
Determining the Strength of an Oxoacid
Why is formic acid stronger than acetic acid?
- Wed Dec 04, 2019 10:05 am
- Forum: Lewis Acids & Bases
- Topic: Strong Acids
- Replies: 6
- Views: 116
Re: Strong Acids
Does that mean that strong bases form stable cations?
- Wed Dec 04, 2019 10:01 am
- Forum: Properties & Structures of Inorganic & Organic Bases
- Topic: Bronsted vs Arrhenius Base: J.1(c) and (e)
- Replies: 3
- Views: 181
Re: Bronsted vs Arrhenius Base: J.1(c) and (e)
What is the definition of an Arrhenius base?
- Wed Dec 04, 2019 9:59 am
- Forum: Bronsted Acids & Bases
- Topic: Bronsted Acids/Bases in Equations
- Replies: 5
- Views: 116
Re: Bronsted Acids/Bases in Equations
What is the definition of a Bronsted Acid versus a Lewis acid?
- Wed Dec 04, 2019 9:59 am
- Forum: Bronsted Acids & Bases
- Topic: Bronsted Acids/Bases in Equations
- Replies: 5
- Views: 116
Re: Bronsted Acids/Bases in Equations
What is the definition of a Bronsted Acid versus a Lewis acid?
- Mon Nov 25, 2019 12:36 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Transition metals
- Replies: 4
- Views: 120
Re: Transition metals
What is a coordination complex?
- Mon Nov 25, 2019 12:33 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Determining Polarity
- Replies: 10
- Views: 146
Re: Determining Polarity
Many times (not always), if there are lone pairs around the central atom, the atom is polar right? What are the exceptions to this rule?
- Mon Nov 25, 2019 12:31 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Chelateing Ligands
- Replies: 3
- Views: 99
Re: Chelateing Ligands
Does someone have a video or online tutorial that explains this well?
- Mon Nov 25, 2019 12:29 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Strong acids vs weak acids
- Replies: 8
- Views: 96
Re: Strong acids vs weak acids
Is a Lewis acid stronger or weaker than a Bronsted acid, or are they just two different ways of defining acids?
- Mon Nov 25, 2019 12:28 pm
- Forum: Bronsted Acids & Bases
- Topic: Definition
- Replies: 5
- Views: 72
Definition
What is the difference between a Bronsted acid and a Lewis acid?
Re: Prefixes
Do you mean in terms of naming compounds?
- Sun Nov 24, 2019 4:18 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: acids
- Replies: 4
- Views: 86
Re: acids
Do bases always have to have an OH group?
- Wed Nov 20, 2019 7:34 pm
- Forum: Dipole Moments
- Topic: Hydrogen Bonding
- Replies: 20
- Views: 508
Hydrogen Bonding
Can hydrogen bonding only occur if an H atom is bonded with a N, O, or F atom?
- Wed Nov 20, 2019 6:52 pm
- Forum: Student Social/Study Group
- Topic: Lydon's Week 8 Learning Session
- Replies: 4
- Views: 153
Re: Lydon's Week 8 Learning Session
Atoms that have pi bonds stay in the same plane I believe.
- Sun Nov 17, 2019 7:19 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Determining a VSEPR model
- Replies: 6
- Views: 79
Re: Determining a VSEPR model
On a related note, resonance structures basically mean that the molecule exists in a structure that is a mix of all the possible structures right?
- Sun Nov 17, 2019 7:15 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Hydrogen Bonding
- Replies: 5
- Views: 90
Re: Hydrogen Bonding
When H is bonded to any other atoms besides those listed above, what type of IF is present?
- Sun Nov 17, 2019 7:14 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Intermolecular Forces and VSEPR
- Replies: 3
- Views: 87
Re: Intermolecular Forces and VSEPR
Which intermolecular force is the strongest?
- Sun Nov 17, 2019 6:55 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VSEPR Angles
- Replies: 4
- Views: 97
Re: VSEPR Angles
What factors do determine bond angles?
- Sun Nov 10, 2019 3:05 pm
- Forum: Lewis Structures
- Topic: Lewis acids and bases?
- Replies: 7
- Views: 80
Re: Lewis acids and bases?
Are the cations usually Lewis acids and the anions usually Lewis bases?
- Sun Nov 10, 2019 3:04 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: How to Draw Dipole Arrows
- Replies: 8
- Views: 310
Re: How to Draw Dipole Arrows
Can someone explain how to indicate dipole moments as well?
- Sun Nov 10, 2019 2:57 pm
- Forum: Dipole Moments
- Topic: Dipole moments
- Replies: 6
- Views: 87
Re: Dipole moments
What exactly is a dipole?
- Sun Nov 10, 2019 2:53 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: Polarizability
- Replies: 3
- Views: 50
Re: Polarizability
What is the difference between polarizability and polarizing power?
- Sun Nov 10, 2019 2:52 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Strength
- Replies: 4
- Views: 83
Re: Bond Strength
I remember there being a table in the textbook that gives you relative bond strengths between different atoms.
- Sun Nov 03, 2019 9:41 pm
- Forum: Lewis Structures
- Topic: "Most favorable" Diagram
- Replies: 4
- Views: 68
Re: "Most favorable" Diagram
I think for resonance structures we draw all the different possible structures.
- Sun Nov 03, 2019 9:39 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: formal charge
- Replies: 5
- Views: 79
Re: formal charge
How do you calculate formal charge again?
- Sun Nov 03, 2019 9:38 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Strength and Electronegativity
- Replies: 3
- Views: 46
Re: Bond Strength and Electronegativity
What is the trend of electronegativity in terms of the periodic table? Does electronegativity increase as you go towards the right of the periodic table?
- Fri Nov 01, 2019 12:13 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Writing electron configuration
- Replies: 7
- Views: 126
Re: Writing electron configuration
For an element like calcium, would the electron configuration end in 4s^2? And what about for Ca^2+?
- Thu Oct 31, 2019 12:05 am
- Forum: Ionic & Covalent Bonds
- Topic: Ionic and Covalent Bonds
- Replies: 6
- Views: 62
Re: Ionic and Covalent Bonds
What is a coordinate covalent bond?
- Thu Oct 24, 2019 8:37 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: noble gas notation
- Replies: 2
- Views: 103
Re: noble gas notation
Is noble gas notation when we refer back to the previous noble gas on the periodic table and use it to stand in for its electron configuration (and then we continue to write the rest of the configuration for the element that we are working with)?
- Thu Oct 24, 2019 8:36 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Orbital Box Diagram
- Replies: 5
- Views: 65
Re: Orbital Box Diagram
Just to confirm, we would draw all the up arrows first for a specific subshell and then start filling in all the down arrows right?
- Thu Oct 24, 2019 8:32 pm
- Forum: Ionic & Covalent Bonds
- Topic: strength of bonds
- Replies: 14
- Views: 400
Re: strength of bonds
In terms of electrons, what is the difference between a triple bond, a double bond, and a single bond?
- Thu Oct 24, 2019 8:30 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron Configuration Exceptions
- Replies: 3
- Views: 48
Re: Electron Configuration Exceptions
Can someone explain what it means to take an electron from the s subshell to stabilize the d subshell please?
- Thu Oct 24, 2019 2:32 pm
- Forum: Properties of Electrons
- Topic: Anions and Cations
- Replies: 4
- Views: 87
Anions and Cations
Are anions larger than the atom and cations smaller, generally?
- Sun Oct 20, 2019 4:27 pm
- Forum: Properties of Electrons
- Topic: Hund's Rule
- Replies: 5
- Views: 93
Hund's Rule
What is Hund's rule and what is its purpose?
- Sun Oct 20, 2019 4:25 pm
- Forum: *Shrodinger Equation
- Topic: Shrodinger Equation
- Replies: 3
- Views: 79
Shrodinger Equation
When do you use schrodinger’s equation and what do you need to know about it?