Search found 45 matches

by Kyle Harvey 4F
Sun Dec 01, 2019 11:20 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Polydentate
Replies: 2
Views: 37

Polydentate

When a ligand is polydentate, does that simply just mean that the ligand binds at more than one site because it has multiple electron pairs to bond with?
by Kyle Harvey 4F
Sun Dec 01, 2019 11:18 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Breaking of pi and sigma bonds
Replies: 4
Views: 43

Breaking of pi and sigma bonds

When two atoms rotate, and they are connected by sigma and pi bonds, will it always happen that pi bonds break first compared to sigma bonds? or are there rare occasions where a sigma bond may break first?
by Kyle Harvey 4F
Sun Dec 01, 2019 11:16 pm
Forum: Naming
Topic: Organometallic Complex
Replies: 1
Views: 26

Organometallic Complex

Are all transition metal complexes considered organometallic complexes? Because in my notes I have them related with each other, but I don't know if there is anything that distinguishes them or if they are just the same complexes.
by Kyle Harvey 4F
Sun Dec 01, 2019 11:14 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Numbers and Ligands
Replies: 3
Views: 30

Coordination Numbers and Ligands

Does the coordination number simply mean the number of ligands that are attached in the complex? Or is there more to it?
by Kyle Harvey 4F
Sun Dec 01, 2019 11:08 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Determing Coordination Number
Replies: 5
Views: 36

Determing Coordination Number

How would I determine the coordination number within a complex? Is there more than one way to do it?
by Kyle Harvey 4F
Sun Dec 01, 2019 11:07 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Ligand Bonding
Replies: 2
Views: 34

Ligand Bonding

Can Ligands bond at more than one site if they have more than one pair of electrons to bond?
by Kyle Harvey 4F
Sun Dec 01, 2019 11:01 pm
Forum: Biological Examples
Topic: Coordination Compounds in relation to Chemotherapy
Replies: 2
Views: 45

Coordination Compounds in relation to Chemotherapy

I have in my notes that we should know some relations of coordination compounds with chemotherapy. What are some examples of these relationships that we would need to know?
by Kyle Harvey 4F
Sun Dec 01, 2019 10:59 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Shapes and Corners
Replies: 2
Views: 25

Shapes and Corners

When Ligands attach to a central ion, is there always an even number of ligands that attach? I only have examples of complexes with even numbers of ligands bonding in my notes.
by Kyle Harvey 4F
Sun Dec 01, 2019 10:56 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Electron Pair Donors
Replies: 3
Views: 25

Electron Pair Donors

When looking at Ligands, will an electron pair donor always be a Lewis base?
by Kyle Harvey 4F
Sun Dec 01, 2019 10:55 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Relation with Transition Metals
Replies: 1
Views: 15

Relation with Transition Metals

I have written down in the notes that transition metals have a relation with coordination compounds, but I am not too sure what I meant by that. Could someone explain the relationship between coordination compounds and transition metals?
by Kyle Harvey 4F
Sun Nov 17, 2019 7:32 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: Relation of the Shape of a Molecule with strength of interactions
Replies: 2
Views: 27

Relation of the Shape of a Molecule with strength of interactions

I know that the size of a molecule relates to the strength of interactions due to distances between forces, but how would the shape of a molecule affect the strength of interactions?
by Kyle Harvey 4F
Sun Nov 17, 2019 7:24 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: Dispersion Forces
Replies: 3
Views: 37

Dispersion Forces

How do dispersion forces relate to how the halogens can have different states of matter at room temperature even though they are a part of the same group?
by Kyle Harvey 4F
Sun Nov 17, 2019 7:17 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Determining a VSEPR model
Replies: 6
Views: 57

Determining a VSEPR model

When writing a VSEPR model, does it matter what resonance structure you use from a molecule, since the bonds could be in different locations?
by Kyle Harvey 4F
Sun Nov 17, 2019 7:08 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Repulsion strength and Bond Angles
Replies: 12
Views: 90

Repulsion strength and Bond Angles

If two different molecules were to have the same shape, for example trigonal planar, but one molecule has a lone pair, would the bond angles between the central atom and the bonding atoms be different then the angles on the other molecule without the lone pair?
by Kyle Harvey 4F
Sun Nov 17, 2019 7:04 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Influence on Molecular Shape
Replies: 4
Views: 37

Influence on Molecular Shape

When determining the shape of a molecule, how do lone pairs influence what shape is determined? I know that they have an influence on determining the shape, but do they influence the name as well?
by Kyle Harvey 4F
Sun Nov 10, 2019 8:33 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: Relation of the size of atoms with the strength of attractions
Replies: 2
Views: 27

Relation of the size of atoms with the strength of attractions

How does an increasing size of an atom or molar mass relate to stronger attractive interactions? Is it due to the increased number of electrons and protons, so there is an increase in intermolecular forces?
by Kyle Harvey 4F
Sun Nov 10, 2019 8:29 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: Polarizability
Replies: 3
Views: 22

Polarizability

How does polarizability relate or depend on the number of electrons and the size of the atom or molecule?
by Kyle Harvey 4F
Sun Nov 10, 2019 8:23 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: Fluctuating Dipoles
Replies: 5
Views: 91

Fluctuating Dipoles

What does it mean when talking about fluctuating dipoles when there is fluctuating electron distribution?
by Kyle Harvey 4F
Sun Nov 10, 2019 8:16 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: Interaction Potential Energy
Replies: 1
Views: 18

Interaction Potential Energy

Could someone explain to me why Interaction potential energy is always negative, or always an attractive force? I am a little confused on exactly what interaction potential energy is.
by Kyle Harvey 4F
Sun Nov 10, 2019 8:09 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: Hydrocarbons at room temperature
Replies: 2
Views: 19

Hydrocarbons at room temperature

If all hydrocarbons have similar chemical makeups, what determines the state of matter that hydrocarbons are in at room temperature?
by Kyle Harvey 4F
Sun Nov 03, 2019 11:55 am
Forum: Bond Lengths & Energies
Topic: Strength related to reactivity
Replies: 2
Views: 26

Strength related to reactivity

How does bond length relate to reactivity? Are shorter bonds typically more or less reactive than bonds with longer lengths?
by Kyle Harvey 4F
Sun Nov 03, 2019 11:36 am
Forum: Coordinate Covalent Bonds
Topic: Single, double, and triple bonds
Replies: 6
Views: 69

Single, double, and triple bonds

When looking at single, double, and triple bonds, would the same number of bonds be the same length between different elements/atoms? For example, would a single bond be the same length between hydrogen and fluorine and hydrogen and chlorine?
by Kyle Harvey 4F
Sun Nov 03, 2019 11:25 am
Forum: Dipole Moments
Topic: Dipole Moment Clarification
Replies: 2
Views: 24

Dipole Moment Clarification

What exactly is a dipole moment? Is there a specific reason why one may form or occur? A little clarification would be greatly appreciated.
by Kyle Harvey 4F
Sun Nov 03, 2019 10:47 am
Forum: Electronegativity
Topic: Relation between Electronegativity and ionization energy
Replies: 3
Views: 42

Relation between Electronegativity and ionization energy

What is the relation of electronegativity with ionization energy and electron affinity? It seems like they have similar trends on the periodic table, but it would be helpful if someone could help explain how?
by Kyle Harvey 4F
Mon Oct 28, 2019 10:15 am
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: Transition Metals
Replies: 2
Views: 69

Transition Metals

What determines the type of cation of Transition Metal that forms? Such as what would determine the formation of Copper(II) vs Copper(III)?
by Kyle Harvey 4F
Mon Oct 28, 2019 10:03 am
Forum: Octet Exceptions
Topic: Sharing more than 8 e-
Replies: 1
Views: 32

Sharing more than 8 e-

Can someone explain to me why some elements/atoms can share more than 8 valence electrons? And are there specific elements that have this property?
by Kyle Harvey 4F
Mon Oct 28, 2019 9:57 am
Forum: Resonance Structures
Topic: Resonance Clarification
Replies: 8
Views: 85

Resonance Clarification

What does is mean exactly when a compound has resonance? I believe I have the general idea, but could anyone clarify it please?
by Kyle Harvey 4F
Mon Oct 28, 2019 9:56 am
Forum: Lewis Structures
Topic: Lone Pairs
Replies: 3
Views: 33

Lone Pairs

When writing lone pairs out on a Lewis Structure, is there a correct way to place them? For example, would you create a pair on the of the four sides of the element symbol, and then move to another side and begin a pair there? Or if you were to have 5 valence electrons, would you begin by adding one...
by Kyle Harvey 4F
Mon Oct 28, 2019 9:47 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Multi-electron atoms
Replies: 6
Views: 70

Multi-electron atoms

When discussing electron distribution and symmetry with the distribution, what does it mean when an electron has/doesn't have any nodal planes.
by Kyle Harvey 4F
Sun Oct 20, 2019 3:13 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Valence electrons
Replies: 4
Views: 28

Valence electrons

When looking at an electron configuration, such as Chromium [Ar] 3d^5 4s^1, would the valence electrons be considered all the electrons in the 3d and 4s state? Or would the valence electrons be the ones in the 3d state?
by Kyle Harvey 4F
Sun Oct 20, 2019 3:04 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Period Trends
Replies: 2
Views: 42

Period Trends

I am assuming so, but do the period trends from period 4 (such as writing the electron configurations with Cr and Cu or filling 4s state before 3d) carry directly over to the further periods? For example, when doing electron configurations for Rb, would you fill the 5s state before the 4d state?
by Kyle Harvey 4F
Sun Oct 20, 2019 2:58 pm
Forum: Quantum Numbers and The H-Atom
Topic: Spin States
Replies: 4
Views: 44

Re: Spin States

Could someone clarify to me exactly what the spin state of an electron means? Like is it simply just the direction in which the electron spins?
by Kyle Harvey 4F
Sun Oct 20, 2019 2:53 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Symmetry within the Orbitals
Replies: 3
Views: 58

Symmetry within the Orbitals

What does it mean when an orbital is described as symmetrical or non-symmetrical? I understand that s-orbitals are symmetrical, while p-, d-, and f-orbitals are non-symmetrical, but I am a little confused on what that exactly means. Could someone please elaborate for me?
by Kyle Harvey 4F
Sun Oct 20, 2019 2:49 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Orbitals and Quantum Levels
Replies: 4
Views: 51

Orbitals and Quantum Levels

Could someone expand a little bit on this for me? As an electron gains more energy, it rises to higher quantum levels. However, does the electron's path or orbital motion remain the same, just further away from the nucleus?
by Kyle Harvey 4F
Sat Oct 12, 2019 3:31 pm
Forum: Properties of Light
Topic: Quantum Levels
Replies: 9
Views: 95

Quantum Levels

Is there a maximum limit to how many principal quantum levels an electron can rise to? Or will they just continue to rise based on increasing amounts of energy?
by Kyle Harvey 4F
Sat Oct 12, 2019 3:24 pm
Forum: DeBroglie Equation
Topic: Discovering De Broglie's Equation
Replies: 1
Views: 44

Discovering De Broglie's Equation

What are the initial equations and fundamental steps used, substituting those equations, in order to justify De Broglie's Equation?
by Kyle Harvey 4F
Sat Oct 12, 2019 3:20 pm
Forum: Properties of Electrons
Topic: Measuring wavelike properties
Replies: 3
Views: 65

Measuring wavelike properties

What typically is considered the smallest measurement for something to have wavelike properties? Is there a reason why that measurement is the cutoff between having wavelike properties and not?
by Kyle Harvey 4F
Thu Oct 10, 2019 11:18 pm
Forum: Photoelectric Effect
Topic: Photoelectric Effect
Replies: 6
Views: 92

Re: Photoelectric Effect

Can someone let me know if I am right, wrong, or at least on the right track. Since light does not have only the properties of waves, only increasing the amplitude of the light won't increase the energy? Only increasing the frequency will increase the light's energy?
by Kyle Harvey 4F
Thu Oct 10, 2019 11:08 pm
Forum: *Black Body Radiation
Topic: Black Body Radiation
Replies: 6
Views: 206

Black Body Radiation

Can someone please explain to me some more about Black Body Radiation? I feel like I have a vague understanding of what it is.
by Kyle Harvey 4F
Thu Oct 03, 2019 10:53 am
Forum: Balancing Chemical Reactions
Topic: States of Matter in a Chemical Equation [ENDORSED]
Replies: 11
Views: 145

Re: States of Matter in a Chemical Equation [ENDORSED]

Other than actually stating what state the molecule is in (s, l, g, aq) in the problem, are there any other ways or indicators to determine the states of the molecules if they are not stated?
by Kyle Harvey 4F
Thu Oct 03, 2019 10:47 am
Forum: Student Social/Study Group
Topic: Study Tips
Replies: 58
Views: 1865

Study Tips

Does anyone have any good advice for studying for this class besides practice problems? Right now I simply read the textbook and work on problems, but I haven't taken chemistry since my freshmen year of high school, so I am not exactly sure how well I know the material. If there are any tips or advi...
by Kyle Harvey 4F
Thu Oct 03, 2019 10:37 am
Forum: SI Units, Unit Conversions
Topic: mol, g.mol and g.mol-1
Replies: 12
Views: 210

Re: mol, g.mol and g.mol-1

g.mol-1 is interchangeable or equivalent to g/mol or grams per mol. In addition, (and someone correct me if I am wrong) I am pretty sure g.mol is representative of grams multiplied by moles, but I am not sure of a situation or problem where that would be used.
by Kyle Harvey 4F
Thu Oct 03, 2019 10:29 am
Forum: Limiting Reactant Calculations
Topic: Ratios between Limiting Reactants and Products
Replies: 3
Views: 53

Ratios between Limiting Reactants and Products

If a question is asking how many moles of one product would the limiting reactant produce, would it simply be based on the ratio of the stoichiometric coefficients attached to the reactant and product in the balanced equation?
by Kyle Harvey 4F
Thu Oct 03, 2019 10:17 am
Forum: Significant Figures
Topic: Significant Figures
Replies: 3
Views: 56

Significant Figures

I know the general rules behind sig figs and which digits count as a significant figure and which don't, however, I sometimes get a little confused on how many sig figs I should write my answer in. Is there a general rule or number of sig figs that should be used? Or does it depend more on the type ...

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