Search found 53 matches
- Fri Dec 06, 2019 1:31 pm
- Forum: *Titrations & Titration Calculations
- Topic: Titration
- Replies: 1
- Views: 552
Titration
Just to clarify, what are we expected to know regarding titration for the final?
- Fri Dec 06, 2019 1:27 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: biological importance
- Replies: 2
- Views: 196
biological importance
Are we expected to know the biological importance of certain coordination compounds for the finals?
- Fri Dec 06, 2019 1:26 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: naming of coordination compounds
- Replies: 1
- Views: 179
naming of coordination compounds
Are there any shortcuts to help with naming a coordination compound? Or other resources since I am still having trouble.
- Fri Dec 06, 2019 1:23 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: structure
- Replies: 1
- Views: 150
structure
How would we be able to draw coordination compounds when we are given the name of it?
- Fri Dec 06, 2019 1:22 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Linear VSEPR model
- Replies: 21
- Views: 1351
Re: Linear VSEPR model
Kaitlynn Tran 3F wrote:If it has 0, 3, or 4 lone pairs, the molecular shape will be linear. However, if it has 1 or 2 lone pairs, the molecular shape will be bent.
Ohh okay, thank you!
- Fri Dec 06, 2019 1:19 pm
- Forum: Amphoteric Compounds
- Topic: how to identify?
- Replies: 5
- Views: 405
Re: how to identify?
Would any other elements make the compound amphoteric too?
- Thu Nov 28, 2019 10:10 am
- Forum: Lewis Acids & Bases
- Topic: When is an acid considered Bronsted?
- Replies: 9
- Views: 604
Re: When is an acid considered Bronsted?
How would we be able to tell which is a Bronsted or Lewis acid/base?
- Thu Nov 28, 2019 10:04 am
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Strength and Weakness
- Replies: 12
- Views: 1126
Re: Strength and Weakness
Would the pKa and Ka values be given or would we have to calculate that ourselves?
- Thu Nov 28, 2019 10:02 am
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Concentration
- Replies: 2
- Views: 187
Concentration
How would we be able to determine the concentration of the H and OH ions within a solution?
- Thu Nov 28, 2019 9:59 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: molecular shape
- Replies: 8
- Views: 542
Re: molecular shape
Would we need to draw the Lewis structure with the correct formal charge in order to determine the molecular shape? Or can we just draw a general Lewis structure?
- Thu Nov 28, 2019 9:58 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Week 9 homework
- Replies: 11
- Views: 750
Re: Week 9 homework
My TA said that he’ll collect both homework during week 10 discussion!
- Thu Nov 28, 2019 9:56 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Linear VSEPR model
- Replies: 21
- Views: 1351
Re: Linear VSEPR model
Ohh so only the number of atoms bound to the central atom determines the molecular shape.
- Sat Nov 23, 2019 10:41 am
- Forum: Administrative Questions and Class Announcements
- Topic: finals
- Replies: 5
- Views: 301
finals
Would the finals be on topics mostly after the midterm and test 2 or would the topics on the finals be evenly distributed?
- Sat Nov 23, 2019 10:37 am
- Forum: Naming
- Topic: transition metals
- Replies: 2
- Views: 174
transition metals
Is the naming of coordination compounds only for transition metals or can it also be for other compounds too?
- Sat Nov 23, 2019 10:35 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bent vs linear
- Replies: 56
- Views: 4290
Re: Bent vs linear
AX2E3 has 3 lone pairs however it is still considered linear on the handout that we were given in discussion.
- Thu Nov 21, 2019 12:04 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bent vs linear
- Replies: 56
- Views: 4290
Re: Bent vs linear
What about AX2E3 since it is linear and not bent?
- Thu Nov 21, 2019 11:53 am
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bent vs linear
- Replies: 56
- Views: 4290
Bent vs linear
How would I be able to distinguish between a shape that is bent or linear since they both have 2 bonded atoms?
- Wed Nov 13, 2019 2:00 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Linear VSEPR model
- Replies: 21
- Views: 1351
Re: Linear VSEPR model
So the number of lone pairs can also determine the molecular shape of a molecule?
- Wed Nov 13, 2019 1:54 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Molecular Shape Name
- Replies: 17
- Views: 893
Re: Molecular Shape Name
Would there be an easier way to memorize all the shape names or how to determine which molecule has what shape?
- Wed Nov 13, 2019 1:50 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Week 9 homework
- Replies: 11
- Views: 750
Week 9 homework
Since week 9 is thanksgiving break and I have discussion on Thursday, would homework still be due for that week?
- Wed Nov 13, 2019 1:48 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Topics on Outlines for Test 2
- Replies: 3
- Views: 197
Re: Topics on Outlines for Test 2
Also, would test 2 be cumulative or just the material after the midterm?
- Wed Nov 13, 2019 1:44 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: molecular shape
- Replies: 8
- Views: 542
molecular shape
Based on the lewis structure, how are we able to determine the molecular shape since the lewis structure is only 2-D?
- Sun Nov 10, 2019 7:59 pm
- Forum: Electronegativity
- Topic: Ionization energy and electronegativity
- Replies: 8
- Views: 804
Re: Ionization energy and electronegativity
Would the ionization and electronegativity trend be the same on the periodic table?
- Sun Nov 10, 2019 7:57 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Shape
- Replies: 3
- Views: 304
Re: Bond Shape
The unequal sharing of electrons will result in one atom to have a partial negative and the other atom to have a partial positive and this would cause the molecule to be polar.
- Sun Nov 10, 2019 7:54 pm
- Forum: Electronegativity
- Topic: dipole moments
- Replies: 7
- Views: 329
dipole moments
Does the difference in electronegativity determine if a molecule has dipole moments?
- Sun Nov 10, 2019 7:53 pm
- Forum: Bond Lengths & Energies
- Topic: bond lengths
- Replies: 3
- Views: 212
bond lengths
How do we determine the bond lengths between different atoms? Also, are we supposed to know if a bond length between 2 atoms are longer or shorter than the bond length between another 2 atoms?
- Sun Nov 10, 2019 7:49 pm
- Forum: Dipole Moments
- Topic: arrows for dipole moments
- Replies: 3
- Views: 223
arrows for dipole moments
How do we determine which way the dipole moments are drawn?
- Thu Oct 31, 2019 1:19 pm
- Forum: Lewis Structures
- Topic: valence electrons
- Replies: 4
- Views: 364
valence electrons
What are the trends for valence electrons?
- Thu Oct 31, 2019 1:17 pm
- Forum: Electronegativity
- Topic: Electronegativity difference
- Replies: 2
- Views: 141
Electronegativity difference
Are we expected to know the element's electronegativity? If not, how would we know the difference to tell if a molecule bonds through covalent or ionic bonds?
- Thu Oct 31, 2019 1:15 pm
- Forum: Lewis Structures
- Topic: octet exceptions
- Replies: 5
- Views: 303
octet exceptions
How would we know if a molecule is an exception to the octet rule?
- Thu Oct 31, 2019 1:13 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal Charge equation
- Replies: 9
- Views: 255
Formal Charge equation
I know that the formal charge equation is FC=V-(L+S/2), but my TA taught us FC=V-(L+B), with B representing the bond length, is this equation essentially the same?
- Thu Oct 31, 2019 1:09 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: electron shells
- Replies: 1
- Views: 96
electron shells
How would I be able to tell if the electrons within an electron shell are paired or unpaired?
- Fri Oct 25, 2019 5:46 pm
- Forum: Bond Lengths & Energies
- Topic: Bond length strength
- Replies: 6
- Views: 318
Bond length strength
How are we able to determine the strength of different bonds?
- Fri Oct 25, 2019 5:45 pm
- Forum: Ionic & Covalent Bonds
- Topic: Identifying Ionic vs Covalent
- Replies: 7
- Views: 296
Re: Identifying Ionic vs Covalent
Julia Mazzucato 4D wrote:We will also be able to look at formal charges within the molecule to determine polarity of a covalent bond.
How would we be able to determine the polarity of a covalent bond using formal charges?
- Fri Oct 25, 2019 5:41 pm
- Forum: Octet Exceptions
- Topic: Resonance structures
- Replies: 5
- Views: 282
Resonance structures
For a compound, would the best way to represent it in Lewis structures is to draw out every structure and use double headed arrows?
- Fri Oct 25, 2019 5:29 pm
- Forum: Octet Exceptions
- Topic: Formal Charge
- Replies: 2
- Views: 164
Formal Charge
Would adding a triple bond help make the compound more stable in terms of formal charge or are double bonds usually the best way to make the lewis structures more stable?
- Fri Oct 25, 2019 5:26 pm
- Forum: Resonance Structures
- Topic: Lewis Structures
- Replies: 3
- Views: 123
Lewis Structures
How would we be able to know how many Lewis structures(resonance) a compound has?
- Fri Oct 18, 2019 8:24 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: electrostatic (coulomb) potential energy [ENDORSED]
- Replies: 3
- Views: 158
electrostatic (coulomb) potential energy [ENDORSED]
When would the coulomb potential energy equation be applied and what does the result represent?
- Fri Oct 18, 2019 8:14 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: How to Name Electron Configurations
- Replies: 5
- Views: 293
Re: How to Name Electron Configurations
I believe you use previous elements on the periodic table when the question asks for a noble gas configuration.
- Fri Oct 18, 2019 8:12 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: electron spin arrows
- Replies: 6
- Views: 345
electron spin arrows
How would we know if an electron is paired or parallel within a shell?
- Fri Oct 18, 2019 8:09 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Hund's rule and Pauli Exclusion Principle
- Replies: 14
- Views: 849
Hund's rule and Pauli Exclusion Principle
What is the relationship between Hund's rule and the Pauli Exclusion principle?
- Fri Oct 18, 2019 8:07 pm
- Forum: *Shrodinger Equation
- Topic: Schrodinger for exam
- Replies: 20
- Views: 896
Schrodinger for exam
Would we need to know the schrodinger equation conceptually for an exam?
- Sat Oct 12, 2019 2:53 pm
- Forum: Properties of Light
- Topic: Constructive & Destructive
- Replies: 4
- Views: 148
Re: Constructive & Destructive
For destructive interference, would it be possible for the two waves to be equal to each other so that they cancel out or does the “negative” have to be smaller than the “positive” wave?
- Sat Oct 12, 2019 2:48 pm
- Forum: DeBroglie Equation
- Topic: De Broglie equation
- Replies: 5
- Views: 187
De Broglie equation
Within the De Broglie’s equation, why does the mass have to be in kg instead of grams?
- Sat Oct 12, 2019 2:43 pm
- Forum: Photoelectric Effect
- Topic: Threshold energy
- Replies: 6
- Views: 163
Re: Threshold energy
Thank you for the clarification!
- Wed Oct 09, 2019 12:26 pm
- Forum: Photoelectric Effect
- Topic: Threshold energy
- Replies: 6
- Views: 163
Threshold energy
Is the threshold energy a set number or would the threshold energy vary depending on the problem?
- Wed Oct 09, 2019 12:21 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Test 1 [ENDORSED]
- Replies: 107
- Views: 22198
Re: Test 1 [ENDORSED]
Will the equations also be provided for us on the test?
- Wed Oct 09, 2019 12:20 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Light energy
- Replies: 3
- Views: 241
Light energy
Are we required to memorize which wavelength of light corresponds to where on the EM spectrum?
- Sat Oct 05, 2019 9:02 am
- Forum: Significant Figures
- Topic: Rules for Significant Figures
- Replies: 4
- Views: 247
Rules for Significant Figures
Can someone explain the rules regarding significant figures?
- Sat Oct 05, 2019 9:01 am
- Forum: Balancing Chemical Reactions
- Topic: Compound names
- Replies: 11
- Views: 625
Re: Compound names
How would we know what the chemical formula is when given the compound names?
- Tue Oct 01, 2019 3:32 pm
- Forum: Limiting Reactant Calculations
- Topic: Finding limiting reagent
- Replies: 6
- Views: 825
Re: Finding limiting reagent
Can someone clarify on how to do the mole to mole ratio in order to find the limiting reagent?
- Tue Oct 01, 2019 3:29 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Conversion for the example dilution problem done in class on Monday
- Replies: 2
- Views: 108
Conversion for the example dilution problem done in class on Monday
Since the problem was in milliliters, would our answer also have to be in milliliters or can we leave our answer in liters?
- Tue Oct 01, 2019 3:25 pm
- Forum: SI Units, Unit Conversions
- Topic: SI units for exam
- Replies: 6
- Views: 351
SI units for exam
Are we required to put the correct number of significant figures for the exam to get full credit?