Search found 29 matches

by longjump
Wed Dec 05, 2018 6:16 pm
Forum: Properties & Structures of Inorganic & Organic Bases
Topic: Memorize strong and weak acids and bases?
Replies: 3
Views: 347

Memorize strong and weak acids and bases?

Should we memorize the strong and weak bases and acids for the final, or is this not of high importance?
by longjump
Wed Dec 05, 2018 6:13 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Carboxyl groups and acids
Replies: 2
Views: 133

Carboxyl groups and acids

Do compounds with carboxyl groups (-COOH) tend to turn into acids?
by longjump
Wed Dec 05, 2018 6:02 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Calculate the strength of an acid?
Replies: 3
Views: 116

Calculate the strength of an acid?

Are we required to know how to calculate the strength of an acid for the final?
by longjump
Wed Dec 05, 2018 6:01 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Ka equation
Replies: 2
Views: 103

Ka equation

Why is water left out of the Ka equation?
by longjump
Wed Dec 05, 2018 5:52 pm
Forum: Conjugate Acids & Bases
Topic: OH- vs -OH
Replies: 3
Views: 145

Re: OH- vs -OH

They are both the same, its just a different way of writing the compound.
by longjump
Wed Dec 05, 2018 5:49 pm
Forum: Naming
Topic: Naming shortcuts [ENDORSED]
Replies: 1
Views: 92

Naming shortcuts [ENDORSED]

Does anyone have a good quick synopsis or cheat sheet on naming compounds? I understand it for the most part, but I would like to make sure my notes are correct.
by longjump
Wed Dec 05, 2018 5:46 pm
Forum: Amphoteric Compounds
Topic: Amphoteric compounds
Replies: 1
Views: 66

Amphoteric compounds

How do you know that something is an amphoteric compound?
by longjump
Wed Nov 14, 2018 4:34 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Need to know VESPR equation? [ENDORSED]
Replies: 2
Views: 133

Need to know VESPR equation? [ENDORSED]

DO we need to know the AXxEx equation that is mentioned in the textbook in regards to VESPR theory?
by longjump
Wed Nov 14, 2018 4:28 pm
Forum: Bond Lengths & Energies
Topic: Bond length question
Replies: 4
Views: 149

Bond length question

How will we be tested on bond lengths? Will it just be comparative or will we actually need to calculate bond sizes?
by longjump
Wed Nov 14, 2018 4:25 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Dipole moments and VESPR
Replies: 3
Views: 115

Dipole moments and VESPR

WIll understanding dipole moments be important for VSEPR theory?
by longjump
Wed Nov 14, 2018 4:23 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: What to memorize in VSEPR?
Replies: 8
Views: 324

What to memorize in VSEPR?

Will we need to memorize the angles in VSEPR theory or just the shapes?
by longjump
Tue Nov 06, 2018 9:19 pm
Forum: Lewis Structures
Topic: Formal charge question
Replies: 9
Views: 349

Formal charge question

Is formal charge the best way to see if your lewis diagram is in the most likely arrangement, or is there another way to tell?
by longjump
Tue Nov 06, 2018 9:13 pm
Forum: Lewis Structures
Topic: Octet rule question
Replies: 6
Views: 247

Octet rule question

Which atoms MUST form an octet? Do these atoms always form one or does it depend on the molecule?
by longjump
Sun Nov 04, 2018 8:08 pm
Forum: Ionic & Covalent Bonds
Topic: Test bank?
Replies: 9
Views: 728

Test bank?

Does anyone know where to find past chem 14a midterm tests to use as a study reference?
by longjump
Wed Oct 31, 2018 5:58 pm
Forum: Trends in The Periodic Table
Topic: Periodicity on midterm?
Replies: 2
Views: 108

Periodicity on midterm?

Will periodicity be on the midterm?
by longjump
Wed Oct 31, 2018 5:56 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Exceptions for the Building-Up principle
Replies: 1
Views: 82

Exceptions for the Building-Up principle

What are all the exceptions for the building up principle?
by longjump
Wed Oct 31, 2018 5:54 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron removal from orbitals question
Replies: 3
Views: 152

Electron removal from orbitals question

If you are predicting which orbital an electron would be removed from to form a +1 ion, why would Mn get an electron removed from the 4s orbital and not the 3d orbital?
by longjump
Sun Oct 21, 2018 10:07 pm
Forum: Quantum Numbers and The H-Atom
Topic: how to sketch orbitals
Replies: 1
Views: 103

how to sketch orbitals

I know that it is hard to explain sketching online, but does anyone have any good ways to know which type of orbital to sketch?
by longjump
Sun Oct 21, 2018 10:05 pm
Forum: Quantum Numbers and The H-Atom
Topic: Sketching orbitals
Replies: 3
Views: 153

Sketching orbitals

Does anyone know if we will be quizzed on sketching the shapes of the orbitals on the test?
by longjump
Sun Oct 21, 2018 8:07 pm
Forum: Quantum Numbers and The H-Atom
Topic: Orbitals question
Replies: 2
Views: 114

Orbitals question

Can someone explain the answer to this question:

How many orbitals can have the following quantum numbers in an atom: (c) n=2

the answer is 4 but I'm not sure how to get there.
by longjump
Thu Oct 18, 2018 9:58 am
Forum: Quantum Numbers and The H-Atom
Topic: Psi squared meaning
Replies: 4
Views: 405

Psi squared meaning

Can someone explain the meaning of psi^2? It was unclear what it meant in class to me.
by longjump
Thu Oct 18, 2018 9:56 am
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Orbital Series question
Replies: 2
Views: 73

Orbital Series question

WIll we need to know the different series' such as the Lyman and Balmer series' for the test?
by longjump
Thu Oct 18, 2018 9:53 am
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Indeterminacy Question
Replies: 1
Views: 83

Indeterminacy Question

Can someone explain uncertainty and indeterminacy in simpler terms? I'm just confused as to what it is a measurement of.
by longjump
Tue Oct 09, 2018 9:56 pm
Forum: SI Units, Unit Conversions
Topic: Ways to remember prefixes
Replies: 7
Views: 1361

Ways to remember prefixes

Does anyone have any good ways to memorize all the prefixes we need to know? Thanks
by longjump
Tue Oct 09, 2018 9:54 pm
Forum: Properties of Light
Topic: Relevancy of light to Chemistry
Replies: 1
Views: 40

Relevancy of light to Chemistry

Can someone explain why light and photons and such are taught in chemistry instead of physics? It seems like beams of light don't have that much to do with chemicals because photons are not chemicals. A little clarification would be really nice, thanks.
by longjump
Tue Oct 09, 2018 9:51 pm
Forum: Properties of Light
Topic: Determining the strength of a wave
Replies: 1
Views: 41

Determining the strength of a wave

If you wanted to find out if a wave was a UV wave, a visible light wave, or an X-ray wave, would you look at wavelength, wave frequency, or the energy of a wave to figure it out?
by longjump
Wed Oct 03, 2018 10:21 pm
Forum: Balancing Chemical Reactions
Topic: Balancing reactions tips
Replies: 29
Views: 1115

Balancing reactions tips

Does anyone have any good tips or tricks for solving balancing reaction questions? Writing the numbers out and calculating every guess works eventually but I feel like there is a faster way.
by longjump
Wed Oct 03, 2018 10:19 pm
Forum: SI Units, Unit Conversions
Topic: Prefixes
Replies: 2
Views: 101

Prefixes

Will it be important to know all the different prefixes and their meanings such as G-giga-10^9 and n-nano-10^-9 for this course?
by longjump
Wed Oct 03, 2018 10:05 pm
Forum: Molarity, Solutions, Dilutions
Topic: Determining the mass of salute for a given concentration
Replies: 1
Views: 101

Determining the mass of salute for a given concentration

I'm not sure how to deal with the pentahydrate in the following example problem from section G.2: You are asked to prepare 250. mL of a solution that is approximately 0.0380 M CuSo4 (aq) from solid copper(II) sulfate pentahydrate, CuSO4x5H20. What mass of the solid do you need?

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