Search found 54 matches

by Jorge Ramirez_4H
Tue Dec 03, 2019 1:15 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: pKa vs Ka
Replies: 6
Views: 64

Re: pKa vs Ka

Is Ka referring to a base or an acid?
by Jorge Ramirez_4H
Tue Dec 03, 2019 1:14 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number
Replies: 9
Views: 99

Re: Coordination Number

Is there an easy way of calculating oxidation numbers?
by Jorge Ramirez_4H
Tue Dec 03, 2019 1:12 pm
Forum: Lewis Acids & Bases
Topic: Long bonds vs Short bonds?
Replies: 9
Views: 162

Re: Long bonds vs Short bonds?

what is they have the same bond length?
by Jorge Ramirez_4H
Tue Dec 03, 2019 1:11 pm
Forum: Student Social/Study Group
Topic: Final topics
Replies: 10
Views: 116

Re: Final topics

What kind of conceptual questions might be asked for acids and bases?
by Jorge Ramirez_4H
Tue Dec 03, 2019 1:06 pm
Forum: Lewis Acids & Bases
Topic: diff b/w lewis acid and base
Replies: 12
Views: 166

Re: diff b/w lewis acid and base

Is (HPO4)2- a base because it has a negative charge?
by Jorge Ramirez_4H
Sun Dec 01, 2019 4:41 pm
Forum: Naming
Topic: Order of ligands in formulas for coordination compounds
Replies: 4
Views: 34

Re: Order of ligands in formulas for coordination compounds

How about if there is a cation?
by Jorge Ramirez_4H
Sun Dec 01, 2019 4:40 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Oxidation Number
Replies: 9
Views: 106

Re: Oxidation Number

How would we know the oxidation number if the formula is just given?
by Jorge Ramirez_4H
Sun Dec 01, 2019 4:34 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number
Replies: 6
Views: 66

Re: Coordination Number

Is there a good way of memorizing this?
by Jorge Ramirez_4H
Wed Nov 27, 2019 8:15 pm
Forum: Sigma & Pi Bonds
Topic: Question on Test 2
Replies: 11
Views: 342

Re: Question on Test 2

How much points would we lose if we just didn't get the hydrogen bonding sites?
by Jorge Ramirez_4H
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: 80

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.
by Jorge Ramirez_4H
Wed Nov 20, 2019 7:15 pm
Forum: Ionic & Covalent Bonds
Topic: CO2 and H20
Replies: 4
Views: 95

Re: CO2 and H20

Why is co2 non polar? isn't based on electronegativity?
by Jorge Ramirez_4H
Wed Nov 20, 2019 7:11 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Bond angles in Trigonal Bipyramidal
Replies: 4
Views: 42

Re: Bond angles in Trigonal Bipyramidal

How do we know which are 90 and which are 120 degrees?
by Jorge Ramirez_4H
Thu Nov 14, 2019 9:38 pm
Forum: Hybridization
Topic: Pi and Sigma Bonds
Replies: 17
Views: 495

Re: Pi and Sigma Bonds

Is this necessary to know?
by Jorge Ramirez_4H
Thu Nov 14, 2019 9:36 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: bond angles
Replies: 10
Views: 107

Re: bond angles

Would question actually ask for bond angles?
by Jorge Ramirez_4H
Thu Nov 14, 2019 9:34 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Molecular Shape Name
Replies: 17
Views: 277

Re: Molecular Shape Name

What's the difference between linear and I think it was bent?
by Jorge Ramirez_4H
Thu Nov 14, 2019 9:32 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 8
Views: 89

Re: Bond Angles

Do we actually need to memorize the bond angles or just what shape they make?
by Jorge Ramirez_4H
Thu Nov 07, 2019 2:39 pm
Forum: SI Units, Unit Conversions
Topic: Kj
Replies: 6
Views: 186

Re: Kj

Would you divide or multiply?
by Jorge Ramirez_4H
Thu Nov 07, 2019 2:38 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Shortcut for Formal Charge
Replies: 14
Views: 483

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.
by Jorge Ramirez_4H
Thu Nov 07, 2019 2:35 pm
Forum: Electronegativity
Topic: Trend of Electronegativity
Replies: 22
Views: 430

Re: Trend of Electronegativity

Does ionization have the same trend?
by Jorge Ramirez_4H
Thu Nov 07, 2019 2:34 pm
Forum: Quantum Numbers and The H-Atom
Topic: Equations we need for midterm
Replies: 7
Views: 257

Re: Equations we need for midterm

How do we covert kj into J?
by Jorge Ramirez_4H
Thu Nov 07, 2019 2:28 pm
Forum: Bond Lengths & Energies
Topic: Test 2 Topics
Replies: 40
Views: 853

Re: Test 2 Topics

What week is this test?
by Jorge Ramirez_4H
Thu Nov 07, 2019 2:26 pm
Forum: Octet Exceptions
Topic: Easy way to remember octet exceptions
Replies: 4
Views: 63

Re: Easy way to remember octet exceptions

There are only 3 exceptions right?
by Jorge Ramirez_4H
Thu Nov 07, 2019 2:21 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configurations
Replies: 13
Views: 494

Re: Electron Configurations

Is there an easy way to memorize the quantum numbers?
by Jorge Ramirez_4H
Thu Oct 31, 2019 2:43 pm
Forum: Lewis Structures
Topic: Charges on Lewis Structures
Replies: 7
Views: 97

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?
by Jorge Ramirez_4H
Thu Oct 31, 2019 2:38 pm
Forum: Trends in The Periodic Table
Topic: blocks
Replies: 13
Views: 149

Re: blocks

How do we use them for electron spinning?
by Jorge Ramirez_4H
Thu Oct 31, 2019 2:37 pm
Forum: Octet Exceptions
Topic: Radicals: Homework Problem #2C1
Replies: 8
Views: 95

Re: Radicals: Homework Problem #2C1

Are radicals that important for the midterm?
by Jorge Ramirez_4H
Thu Oct 31, 2019 2:35 pm
Forum: Lewis Structures
Topic: octet exceptions
Replies: 5
Views: 45

Re: octet exceptions

How about elements in the third row?
by Jorge Ramirez_4H
Thu Oct 31, 2019 2:34 pm
Forum: Lewis Structures
Topic: lewis structures
Replies: 4
Views: 51

Re: lewis structures

Are octets more important than formal charge, when drawing the strutures?
by Jorge Ramirez_4H
Thu Oct 31, 2019 2:33 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge
Replies: 5
Views: 61

Re: Formal Charge

The the element in the middle always have to have a formal charge of zero?
by Jorge Ramirez_4H
Wed Oct 23, 2019 8:23 pm
Forum: Electronegativity
Topic: Electronegativity
Replies: 14
Views: 140

Re: Electronegativity

Is electronegativity important when doing electron configurations?
by Jorge Ramirez_4H
Wed Oct 23, 2019 8:22 pm
Forum: Photoelectric Effect
Topic: Focus 1.31
Replies: 3
Views: 53

Re: Focus 1.31

How do we convert to Joules again?
by Jorge Ramirez_4H
Wed Oct 23, 2019 8:19 pm
Forum: Trends in The Periodic Table
Topic: Ionic Radii
Replies: 10
Views: 150

Re: Ionic Radii

What's the difference between ionic and atomic radii?
by Jorge Ramirez_4H
Wed Oct 23, 2019 8:16 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configurations
Replies: 13
Views: 494

Re: Electron Configurations

What does he mean when he writes x, y, and z during electron configuration? Is that necessary?
by Jorge Ramirez_4H
Wed Oct 23, 2019 8:13 pm
Forum: Trends in The Periodic Table
Topic: blocks
Replies: 13
Views: 149

Re: blocks

Are the blocks needed for electron configuration?
by Jorge Ramirez_4H
Tue Oct 15, 2019 6:32 pm
Forum: Properties of Electrons
Topic: Photons
Replies: 9
Views: 140

Re: Photons

How do photons affect an electron's momentum and position?
by Jorge Ramirez_4H
Tue Oct 15, 2019 6:26 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Explanation of Shells
Replies: 2
Views: 42

Re: Explanation of Shells

There are four main types of atomic orbitals (s,p,d,f)
by Jorge Ramirez_4H
Tue Oct 15, 2019 6:23 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Time of Use
Replies: 5
Views: 48

Re: Time of Use

Tips for rearranging his equation?
by Jorge Ramirez_4H
Tue Oct 15, 2019 6:20 pm
Forum: *Shrodinger Equation
Topic: What is Shrodinger's for?
Replies: 6
Views: 83

Re: What is Shrodinger's for?

Why are 2nd derivatives used in this equation?
by Jorge Ramirez_4H
Tue Oct 15, 2019 6:17 pm
Forum: Properties of Light
Topic: Homework
Replies: 11
Views: 120

Re: Homework

Last week I completed 3 problems from the quantum world and 2 from the fundamental section will I still receive full credit?
by Jorge Ramirez_4H
Tue Oct 08, 2019 3:02 pm
Forum: Limiting Reactant Calculations
Topic: Limiting Reactant Problem
Replies: 5
Views: 97

Re: Limiting Reactant Problem

Tips for rearranging for these types of problems?
by Jorge Ramirez_4H
Tue Oct 08, 2019 3:00 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Word Problem Efficiency
Replies: 7
Views: 245

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?
by Jorge Ramirez_4H
Tue Oct 08, 2019 2:54 pm
Forum: Limiting Reactant Calculations
Topic: Test 1
Replies: 11
Views: 226

Re: Test 1

For test 1 should we study concepts or will it be all calculation based?
by Jorge Ramirez_4H
Tue Oct 08, 2019 2:49 pm
Forum: Balancing Chemical Reactions
Topic: How to write reactions for tests
Replies: 5
Views: 123

Re: How to write reactions for tests

Would the problem be marked as incorrect if we do not include them?
by Jorge Ramirez_4H
Tue Oct 08, 2019 2:45 pm
Forum: Administrative Questions and Class Announcements
Topic: Grades
Replies: 4
Views: 86

Re: Grades

Is the discussion score also posted along with the homework grade for the week?
by Jorge Ramirez_4H
Fri Oct 04, 2019 12:24 am
Forum: SI Units, Unit Conversions
Topic: Memorizing Metric Conversions
Replies: 8
Views: 205

Re: Memorizing Metric Conversions

Which units will be most important to memorize in chem 14a?
by Jorge Ramirez_4H
Fri Oct 04, 2019 12:20 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Aqueous, solid, gas
Replies: 11
Views: 207

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?
by Jorge Ramirez_4H
Thu Oct 03, 2019 1:37 pm
Forum: SI Units, Unit Conversions
Topic: How does grading for discussion posts work?
Replies: 80
Views: 3804

Re: How does grading for discussion posts work?

Can the TA's still find our posts even if our UID is our username?
by Jorge Ramirez_4H
Thu Oct 03, 2019 1:29 pm
Forum: Empirical & Molecular Formulas
Topic: 5 Homework Problems Due
Replies: 21
Views: 324

Re: 5 Homework Problems Due

Is going over specific problems in the homework a majority thing when in discussions?
by Jorge Ramirez_4H
Thu Oct 03, 2019 1:17 pm
Forum: Significant Figures
Topic: Quick General Question!
Replies: 5
Views: 123

Re: Quick General Question!

How significant are trailing zeros, can you round those?

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