Search found 50 matches

by Abigail Carter 4G
Sat Dec 07, 2019 1:33 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: [Co(OH)2C2O4]-
Replies: 1
Views: 35

[Co(OH)2C2O4]-

How can oxalate (C2O4) be a chelating ligand? Is it become the oxygens can attach in multiple places?
by Abigail Carter 4G
Fri Dec 06, 2019 5:21 pm
Forum: Identifying Acidic & Basic Salts
Topic: AlCl3 & Cu(NO3)2
Replies: 3
Views: 113

AlCl3 & Cu(NO3)2

How can you tell if AlCl3 and Cu(NO3)2 is acidic (pH <7) or basic (pH>7)?
by Abigail Carter 4G
Sun Dec 01, 2019 6:50 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Ligand Binding Sites
Replies: 1
Views: 21

Ligand Binding Sites

Are there any exceptions where ligands have 4 or 5 binding sites?
by Abigail Carter 4G
Sun Dec 01, 2019 6:47 pm
Forum: Naming
Topic: Anionic Ligands
Replies: 1
Views: 22

Anionic Ligands

Should we memorize all of the anionic ligands (formulas and names) or will we get some of them on the test?
by Abigail Carter 4G
Sun Dec 01, 2019 6:43 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Random Example
Replies: 1
Views: 34

Random Example

How would you draw the lewis structure for [HgF2(OH2)2]+?
by Abigail Carter 4G
Sun Dec 01, 2019 4:30 pm
Forum: Naming
Topic: Cis & Trans
Replies: 3
Views: 36

Cis & Trans

I understand that cis means the ligands are on the same side, whereas trans means they are opposite each other but do we have to include these prefixes when we are writing the names?
by Abigail Carter 4G
Sun Dec 01, 2019 4:26 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Oxidation Number
Replies: 9
Views: 100

Oxidation Number

When you are writing the name out from a given formula should you always include the oxidation number at the end in roman numerals?
by Abigail Carter 4G
Sun Nov 24, 2019 10:51 pm
Forum: Naming
Topic: Roman Numerals
Replies: 3
Views: 44

Roman Numerals

I understand that the Tm cation name is the roman numeral but how do you decipher what roman numeral you write? Basically, how do you figure out what the Tm cation name is?
by Abigail Carter 4G
Sun Nov 24, 2019 10:49 pm
Forum: Naming
Topic: adding O
Replies: 3
Views: 47

adding O

Do you add an O to the end of every anion name or are there some exceptions?
by Abigail Carter 4G
Sun Nov 24, 2019 10:00 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Chelating complexes
Replies: 1
Views: 36

Chelating complexes

How do you figure out if something forms a chelating complex?
by Abigail Carter 4G
Sun Nov 24, 2019 9:53 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: ligand bonding sites
Replies: 2
Views: 41

ligand bonding sites

What does it mean for a ligand to bind at multiple sites? (ex. 1, 2, 3, 6) Does that mean there are x number of molecules that are ligands?
by Abigail Carter 4G
Sun Nov 24, 2019 9:51 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination compound
Replies: 5
Views: 55

Coordination compound

What is the difference between tm complex, organometallic complex and coordination compound, if any?
by Abigail Carter 4G
Mon Nov 18, 2019 12:27 am
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: 3F.19
Replies: 2
Views: 35

3F.19

Account for the following observations in terms of the type and strength of intermolecular forces. (a) The melting point of solid xenon is -112C and that of solid argon is -189C. (b) The vapor pressure of diethyl ether (C2H5OC2H5) is greater than that of water. (c) The boiling point of pentane, CH3(...
by Abigail Carter 4G
Sun Nov 17, 2019 11:34 pm
Forum: Dipole Moments
Topic: CH3Cl & CHCl3
Replies: 2
Views: 65

CH3Cl & CHCl3

How do CH3Cl and CHCl3 have dipole-dipole interactions?
by Abigail Carter 4G
Sun Nov 17, 2019 11:00 pm
Forum: Bond Lengths & Energies
Topic: 2D. 19
Replies: 3
Views: 117

2D. 19

Use the covalent radii in Fig. 2D.11 to calculate the bond lengths in the following molecules. Account for the trends in your calculated values: (a) CF 4 ; (b) SiF 4 ; (c) SnF 4 .

How do you use the covalent radii to calculate bond lengths? Also is this something that could be on test 2?
by Abigail Carter 4G
Sun Nov 17, 2019 10:34 pm
Forum: Ionic & Covalent Bonds
Topic: ionic bonding
Replies: 2
Views: 59

ionic bonding

What is the periodic trend for ionic character/bonding?
by Abigail Carter 4G
Sun Nov 17, 2019 10:31 pm
Forum: Ionic & Covalent Bonds
Topic: 2D 3.
Replies: 1
Views: 44

2D 3.

Which of these compounds have bonds that are primarily ionic? BBr3 or BaBr2 or BeBr2

I know that BBr3 have covalent bonds but how do can you tell which of the other two compounds have more ionic bonds.
by Abigail Carter 4G
Sun Nov 17, 2019 10:25 pm
Forum: Bond Lengths & Energies
Topic: Interaction Potential Energy
Replies: 2
Views: 110

Interaction Potential Energy

Does anyone know if the interaction potential energy equation will be on the test? If so, what is an example of a problem where you would have to use it?
by Abigail Carter 4G
Sun Nov 17, 2019 10:05 pm
Forum: Dipole Moments
Topic: Dipole-Induced Dipole
Replies: 1
Views: 38

Dipole-Induced Dipole

What exactly is a dipole-induced dipole and what are some examples? I am confused on how you know if a compound has a dipole-induced dipole intermolecular force.
by Abigail Carter 4G
Sun Nov 10, 2019 11:32 pm
Forum: Bond Lengths & Energies
Topic: Boiling Points
Replies: 2
Views: 36

Boiling Points

What is the significance of calculating the boiling point of a compound and then the differences between two boiling points of two different compounds?
by Abigail Carter 4G
Sun Nov 10, 2019 11:29 pm
Forum: Dipole Moments
Topic: 3F.3
Replies: 2
Views: 36

3F.3

For which of the following molecules will dipole–dipole interactions be important: (a) CH4 (b) CH3Cl (c) CH2Cl2 (d) CHCl3 (e) CCl4?

How do you know if dipole-dipole interactions will be important for certain compounds?
by Abigail Carter 4G
Sun Nov 10, 2019 11:23 pm
Forum: Bond Lengths & Energies
Topic: Interaction Potential Energy equation
Replies: 7
Views: 102

Interaction Potential Energy equation

What is an example of a question where we would use the interaction potential energy equation?
by Abigail Carter 4G
Sun Nov 10, 2019 11:17 pm
Forum: Dipole Moments
Topic: Different types of attractive forces
Replies: 2
Views: 45

Different types of attractive forces

How do you distinguish between what compounds have what attractive forces? For example how do you tell what compounds have dipole-dipole and what have dipole-induced dipole etc?
by Abigail Carter 4G
Sun Nov 10, 2019 11:15 pm
Forum: Dipole Moments
Topic: Dipole Moment
Replies: 6
Views: 63

Dipole Moment

When do you calculate a dipole moment? How do you know if a compound has a dipole moment?
by Abigail Carter 4G
Sun Nov 03, 2019 10:34 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Factors affecting energy
Replies: 1
Views: 47

Factors affecting energy

Does anyone know how much we should know about the factors that affect energy of many-electron atoms for the midterm?
by Abigail Carter 4G
Sun Nov 03, 2019 10:30 pm
Forum: Formal Charge and Oxidation Numbers
Topic: formal charge
Replies: 7
Views: 106

formal charge

When you are drawing lewis structures do you always need to solve for formal charge? Are there molecules that automatically do not have a formal charge and therefore don't need to solve the equation for?
by Abigail Carter 4G
Sun Nov 03, 2019 10:22 pm
Forum: Formal Charge and Oxidation Numbers
Topic: formal charge
Replies: 5
Views: 77

formal charge

When you are drawing lewis structures do you always need to solve for formal charge? Are there molecules that automatically do not have a formal charge and therefore don't need to solve the equation for?
by Abigail Carter 4G
Sun Nov 03, 2019 10:19 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Uncertainty in position
Replies: 1
Views: 42

Uncertainty in position

How do you solve for the uncertainty in position (delta X)?
by Abigail Carter 4G
Sun Nov 03, 2019 9:49 pm
Forum: *Shrodinger Equation
Topic: Hamiltonian
Replies: 3
Views: 152

Hamiltonian

What does the H or hamiltonian mean in schrodinger's equation? Is it an actually constant?
by Abigail Carter 4G
Sun Nov 03, 2019 8:50 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Electron Transitions
Replies: 1
Views: 37

Electron Transitions

En = -(hR/n^2)

I understand that this equation calculates electron transitions but I don't understand what that means.

On a test what is an example of an question that you need to use this equation for?
by Abigail Carter 4G
Sun Oct 27, 2019 8:03 pm
Forum: Lewis Structures
Topic: Lone Pairs
Replies: 12
Views: 117

Lone Pairs

How do you figure out how many lone pairs each molecule has when you are drawing a lewis structure?
by Abigail Carter 4G
Sun Oct 27, 2019 8:02 pm
Forum: Trends in The Periodic Table
Topic: 1F.19
Replies: 1
Views: 31

1F.19

Why are s-block metals typically more reactive than p-block metals?

How do you figure out how reactive a block of metals are?
by Abigail Carter 4G
Sun Oct 27, 2019 7:59 pm
Forum: Trends in The Periodic Table
Topic: 1F.5
Replies: 1
Views: 17

1F.5

Which member of each pair has the smaller first ionization energy: (a) Ca or Mg; (b) Mg or Na; (c) Al or Na?

How do you figure our the first ionization energy?
by Abigail Carter 4G
Sun Oct 27, 2019 7:54 pm
Forum: Resonance Structures
Topic: Resonance
Replies: 5
Views: 59

Resonance

Can someone explain to me what resonance structures are again and how to determine if a structure is a resonance structure?
by Abigail Carter 4G
Sun Oct 27, 2019 7:43 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron configurations
Replies: 3
Views: 38

Electron configurations

When do you write x,y,z when you are writing electron configurations?
by Abigail Carter 4G
Sun Oct 20, 2019 9:34 pm
Forum: Photoelectric Effect
Topic: 1B.3
Replies: 3
Views: 68

1B.3

1B.3 From the following list of observations, select the one that best supports the idea that electromagnetic radiation has the properties of particles. Explain your reasoning. (a) Black-body radiation. (b) Electron diffraction. (c) Atomic spectra. (d) The photoelectric effect. Can someone help me w...
by Abigail Carter 4G
Sun Oct 20, 2019 9:30 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Paired & Parallel Electrons
Replies: 4
Views: 36

Paired & Parallel Electrons

How are electrons parallel and/or paired? Is there something that one can solve to figure it out?
by Abigail Carter 4G
Sun Oct 20, 2019 9:28 pm
Forum: *Shrodinger Equation
Topic: wave function^2
Replies: 1
Views: 41

wave function^2

When would you use this equation?

wave function^2 = e-p distribution
by Abigail Carter 4G
Sun Oct 20, 2019 9:19 pm
Forum: Quantum Numbers and The H-Atom
Topic: Stern & Gerlach Experiment
Replies: 3
Views: 69

Stern & Gerlach Experiment

What is the Stern and Gerlach experiment and what is its relation and importance to quantum numbers?
by Abigail Carter 4G
Sun Oct 20, 2019 9:14 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: p- & d- orbitals
Replies: 2
Views: 52

p- & d- orbitals

what does it mean for p- and d- orbitals to have nodal plane?
by Abigail Carter 4G
Sun Oct 13, 2019 10:59 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: 1B. 27
Replies: 1
Views: 24

1B. 27

A bowling ball of mass 8.00 kg is rolled down a bowling alley lane at 5.00 +/- 5.0 m.s-1. What is the minimum uncertainty in its position?
by Abigail Carter 4G
Sun Oct 13, 2019 10:54 pm
Forum: Properties of Electrons
Topic: Energy/Light Levels
Replies: 2
Views: 27

Energy/Light Levels

If ultraviolet involves n=1, visible involves n=2 and infrared involves n=3 then what is the connection between light and n=4 and n=5?
by Abigail Carter 4G
Sun Oct 13, 2019 10:52 pm
Forum: Properties of Electrons
Topic: Emission Spectrum
Replies: 4
Views: 50

Emission Spectrum

I remember that in lecture we talked about how the emission/line/atomic spectrum for H shows different groups of spectral lines. What does this mean exactly and what is its context in terms of the bigger picture?
by Abigail Carter 4G
Sun Oct 13, 2019 10:46 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Indeterminacy Equation
Replies: 5
Views: 56

Indeterminacy Equation

When exactly do you use this equation? Could someone give me an example?
by Abigail Carter 4G
Sun Oct 13, 2019 10:43 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: En=-hR/h2
Replies: 1
Views: 20

En=-hR/h2

Why is this equation negative? Does it have something to do with the electrons having lower energy?
by Abigail Carter 4G
Sun Oct 06, 2019 11:30 pm
Forum: Balancing Chemical Reactions
Topic: H.25
Replies: 3
Views: 185

H.25

Phosphorus and oxygen react to form two different phosphorus oxides. The mass percentage of phosphorus in one of these oxides is 43.64%; in the other, it is 56.34%. (a) Write the empirical formula of each phosphorus oxide. (b) The molar mass of the former oxide is 283.33 g.mol and that of the latter...
by Abigail Carter 4G
Sun Oct 06, 2019 11:25 pm
Forum: SI Units, Unit Conversions
Topic: Si Units
Replies: 3
Views: 41

Si Units

When do some of the less common SI units (ex. giga, mega, mili, nano, pico) come in handy/are more used?
by Abigail Carter 4G
Sun Oct 06, 2019 11:18 pm
Forum: Properties of Light
Topic: Quantum Mechanics Equations
Replies: 2
Views: 52

Quantum Mechanics Equations

What are the most important equations used in quantum mechanics?
by Abigail Carter 4G
Sun Oct 06, 2019 1:11 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Test Equation Sheet
Replies: 8
Views: 141

Test Equation Sheet

Does anyone know what equations/information will be on the sheet that we get for the tests?
by Abigail Carter 4G
Sun Oct 06, 2019 11:52 am
Forum: Empirical & Molecular Formulas
Topic: L.39
Replies: 1
Views: 73

L.39

A 1.50-g sample of metallic tin was placed in a 26.45-g crucible and heated until all the tin had reacted with the oxygen in air to form an oxide. The crucible and product together were found to weigh 28.35 g. (a) What is the empirical formula of the oxide? (b) Write the name of the oxide. Can someo...

Go to advanced search