Search found 54 matches
- Tue Dec 03, 2019 1:15 pm
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: pKa vs Ka
- Replies: 6
- Views: 470
Re: pKa vs Ka
Is Ka referring to a base or an acid?
- Tue Dec 03, 2019 1:14 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Coordination Number
- Replies: 9
- Views: 501
Re: Coordination Number
Is there an easy way of calculating oxidation numbers?
- Tue Dec 03, 2019 1:12 pm
- Forum: Lewis Acids & Bases
- Topic: Long bonds vs Short bonds?
- Replies: 9
- Views: 929
Re: Long bonds vs Short bonds?
what is they have the same bond length?
- Tue Dec 03, 2019 1:11 pm
- Forum: Student Social/Study Group
- Topic: Final topics
- Replies: 10
- Views: 551
Re: Final topics
What kind of conceptual questions might be asked for acids and bases?
- Tue Dec 03, 2019 1:06 pm
- Forum: Lewis Acids & Bases
- Topic: diff b/w lewis acid and base
- Replies: 12
- Views: 703
Re: diff b/w lewis acid and base
Is (HPO4)2- a base because it has a negative charge?
- Sun Dec 01, 2019 4:41 pm
- Forum: Naming
- Topic: Order of ligands in formulas for coordination compounds
- Replies: 4
- Views: 238
Re: Order of ligands in formulas for coordination compounds
How about if there is a cation?
- Sun Dec 01, 2019 4:40 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Oxidation Number
- Replies: 9
- Views: 772
Re: Oxidation Number
How would we know the oxidation number if the formula is just given?
- Sun Dec 01, 2019 4:34 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Coordination Number
- Replies: 6
- Views: 408
Re: Coordination Number
Is there a good way of memorizing this?
- Wed Nov 27, 2019 8:15 pm
- Forum: Sigma & Pi Bonds
- Topic: Question on Test 2
- Replies: 11
- Views: 924
Re: Question on Test 2
How much points would we lose if we just didn't get the hydrogen bonding sites?
- Wed Nov 27, 2019 8:12 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: Test 2 7a
- Replies: 6
- Views: 387
Re: Test 2 7a
Wait, I thought that it was one bonding site. Why do the lone pairs count I thought it explicitly needed to show H bonding to F,O, or N.
- Wed Nov 20, 2019 7:15 pm
- Forum: Ionic & Covalent Bonds
- Topic: CO2 and H20
- Replies: 4
- Views: 450
Re: CO2 and H20
Why is co2 non polar? isn't based on electronegativity?
- Wed Nov 20, 2019 7:12 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: Boiling Points
- Replies: 7
- Views: 360
Re: Boiling Points
Are melting points and boiling points the same in regards to forces?
- Wed Nov 20, 2019 7:11 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Bond angles in Trigonal Bipyramidal
- Replies: 4
- Views: 544
Re: Bond angles in Trigonal Bipyramidal
How do we know which are 90 and which are 120 degrees?
- Wed Nov 20, 2019 7:08 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: Boiling Points
- Replies: 7
- Views: 360
Re: Boiling Points
Does that mean that an ion-ion interaction would have the highest bp? NaCl
- Wed Nov 20, 2019 7:08 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: Boiling Points
- Replies: 7
- Views: 360
Re: Boiling Points
So the stronger the forces are the higher the boiling point?
- Wed Nov 20, 2019 7:04 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: HCL vs NaCl
- Replies: 6
- Views: 1019
Re: HCL vs NaCl
What is melting point based on?
- Thu Nov 14, 2019 9:38 pm
- Forum: Hybridization
- Topic: Pi and Sigma Bonds
- Replies: 17
- Views: 1271
Re: Pi and Sigma Bonds
Is this necessary to know?
- Thu Nov 14, 2019 9:36 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: bond angles
- Replies: 10
- Views: 504
Re: bond angles
Would question actually ask for bond angles?
- Thu Nov 14, 2019 9:34 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: why are double bonds equally weighted as single ones when drawing models?
- Replies: 10
- Views: 1980
Re: why are double bonds equally weighted as single ones when drawing models?
Does weight not affect angles?
- Thu Nov 14, 2019 9:34 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Molecular Shape Name
- Replies: 17
- Views: 885
Re: Molecular Shape Name
What's the difference between linear and I think it was bent?
- Thu Nov 14, 2019 9:32 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bond Angles
- Replies: 8
- Views: 341
Re: Bond Angles
Do we actually need to memorize the bond angles or just what shape they make?
- Thu Nov 07, 2019 2:39 pm
- Forum: SI Units, Unit Conversions
- Topic: Kj
- Replies: 6
- Views: 518
Re: Kj
Would you divide or multiply?
- Thu Nov 07, 2019 2:38 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Shortcut for Formal Charge
- Replies: 19
- Views: 1666
Re: Shortcut for Formal Charge
Just count everything around that certain element and if needed subtract the number of initial electrons to the number of lines/dots around the element.
- Thu Nov 07, 2019 2:35 pm
- Forum: Electronegativity
- Topic: Trend of Electronegativity
- Replies: 22
- Views: 2125
Re: Trend of Electronegativity
Does ionization have the same trend?
- Thu Nov 07, 2019 2:34 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: Equations we need for midterm
- Replies: 7
- Views: 652
Re: Equations we need for midterm
How do we covert kj into J?
- Thu Nov 07, 2019 2:28 pm
- Forum: Bond Lengths & Energies
- Topic: Test 2 Topics
- Replies: 40
- Views: 2209
Re: Test 2 Topics
What week is this test?
- Thu Nov 07, 2019 2:26 pm
- Forum: Octet Exceptions
- Topic: Easy way to remember octet exceptions
- Replies: 4
- Views: 376
Re: Easy way to remember octet exceptions
There are only 3 exceptions right?
- Thu Nov 07, 2019 2:21 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron Configurations
- Replies: 13
- Views: 2964
Re: Electron Configurations
Is there an easy way to memorize the quantum numbers?
- Thu Oct 31, 2019 2:43 pm
- Forum: Lewis Structures
- Topic: Charges on Lewis Structures
- Replies: 7
- Views: 482
Re: Charges on Lewis Structures
For example is we had Br03- and we were adding up the electrons why would we add one instead of subtract one?
- Thu Oct 31, 2019 2:38 pm
- Forum: Trends in The Periodic Table
- Topic: blocks
- Replies: 13
- Views: 655
Re: blocks
How do we use them for electron spinning?
- Thu Oct 31, 2019 2:37 pm
- Forum: Octet Exceptions
- Topic: Radicals: Homework Problem #2C1
- Replies: 8
- Views: 462
Re: Radicals: Homework Problem #2C1
Are radicals that important for the midterm?
- Thu Oct 31, 2019 2:35 pm
- Forum: Lewis Structures
- Topic: octet exceptions
- Replies: 5
- Views: 300
Re: octet exceptions
How about elements in the third row?
- Thu Oct 31, 2019 2:34 pm
- Forum: Lewis Structures
- Topic: lewis structures
- Replies: 4
- Views: 177
Re: lewis structures
Are octets more important than formal charge, when drawing the strutures?
- Thu Oct 31, 2019 2:33 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal Charge
- Replies: 5
- Views: 233
Re: Formal Charge
The the element in the middle always have to have a formal charge of zero?
- Wed Oct 23, 2019 8:23 pm
- Forum: Electronegativity
- Topic: Electronegativity
- Replies: 14
- Views: 658
Re: Electronegativity
Is electronegativity important when doing electron configurations?
- Wed Oct 23, 2019 8:22 pm
- Forum: Photoelectric Effect
- Topic: Focus 1.31
- Replies: 3
- Views: 130
Re: Focus 1.31
How do we convert to Joules again?
- Wed Oct 23, 2019 8:19 pm
- Forum: Trends in The Periodic Table
- Topic: Ionic Radii
- Replies: 10
- Views: 458
Re: Ionic Radii
What's the difference between ionic and atomic radii?
- Wed Oct 23, 2019 8:16 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron Configurations
- Replies: 13
- Views: 2964
Re: Electron Configurations
What does he mean when he writes x, y, and z during electron configuration? Is that necessary?
- Wed Oct 23, 2019 8:13 pm
- Forum: Trends in The Periodic Table
- Topic: blocks
- Replies: 13
- Views: 655
Re: blocks
Are the blocks needed for electron configuration?
- Tue Oct 15, 2019 6:32 pm
- Forum: Properties of Electrons
- Topic: Photons
- Replies: 9
- Views: 340
Re: Photons
How do photons affect an electron's momentum and position?
- Tue Oct 15, 2019 6:26 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Explanation of Shells
- Replies: 2
- Views: 156
Re: Explanation of Shells
There are four main types of atomic orbitals (s,p,d,f)
- Tue Oct 15, 2019 6:23 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Time of Use
- Replies: 5
- Views: 108
Re: Time of Use
Tips for rearranging his equation?
- Tue Oct 15, 2019 6:20 pm
- Forum: *Shrodinger Equation
- Topic: What is Shrodinger's for?
- Replies: 6
- Views: 353
Re: What is Shrodinger's for?
Why are 2nd derivatives used in this equation?
- Tue Oct 15, 2019 6:17 pm
- Forum: Properties of Light
- Topic: Homework
- Replies: 11
- Views: 530
Re: Homework
Last week I completed 3 problems from the quantum world and 2 from the fundamental section will I still receive full credit?
- Tue Oct 08, 2019 3:02 pm
- Forum: Limiting Reactant Calculations
- Topic: Limiting Reactant Problem
- Replies: 5
- Views: 371
Re: Limiting Reactant Problem
Tips for rearranging for these types of problems?
- Tue Oct 08, 2019 3:00 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Word Problem Efficiency
- Replies: 7
- Views: 440
Re: Word Problem Efficiency
Anyone have tips on time management for word problems? I have always struggled with this especially when the problems are calculation based?
- Tue Oct 08, 2019 2:54 pm
- Forum: Limiting Reactant Calculations
- Topic: Test 1
- Replies: 11
- Views: 509
Re: Test 1
For test 1 should we study concepts or will it be all calculation based?
- Tue Oct 08, 2019 2:49 pm
- Forum: Balancing Chemical Reactions
- Topic: How to write reactions for tests
- Replies: 5
- Views: 229
Re: How to write reactions for tests
Would the problem be marked as incorrect if we do not include them?
- Tue Oct 08, 2019 2:45 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Grades
- Replies: 4
- Views: 296
Re: Grades
Is the discussion score also posted along with the homework grade for the week?
- Fri Oct 04, 2019 12:24 am
- Forum: SI Units, Unit Conversions
- Topic: Memorizing Metric Conversions
- Replies: 8
- Views: 1010
Re: Memorizing Metric Conversions
Which units will be most important to memorize in chem 14a?
- Fri Oct 04, 2019 12:20 am
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Aqueous, solid, gas
- Replies: 11
- Views: 16465
Re: Aqueous, solid, gas
Do problems in this class usually make this obvious or given inside the problem? How do we know if a solution is aqueous or not?
- Thu Oct 03, 2019 1:37 pm
- Forum: SI Units, Unit Conversions
- Topic: How does grading for discussion posts work?
- Replies: 80
- Views: 8592
Re: How does grading for discussion posts work?
Can the TA's still find our posts even if our UID is our username?
- Thu Oct 03, 2019 1:29 pm
- Forum: Empirical & Molecular Formulas
- Topic: 5 Homework Problems Due
- Replies: 21
- Views: 924
Re: 5 Homework Problems Due
Is going over specific problems in the homework a majority thing when in discussions?
- Thu Oct 03, 2019 1:17 pm
- Forum: Significant Figures
- Topic: Quick General Question!
- Replies: 5
- Views: 335
Re: Quick General Question!
How significant are trailing zeros, can you round those?