Search found 19 matches

by Rosalva_Mejia_41
Wed Nov 30, 2016 11:33 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Assuming X is small
Replies: 5
Views: 1641

Re: Assuming X is small

After finding the value of x in the ICE table, is that the value of H3O+ ions, and whichever molecule that is x?
For some questions, it's shown that x is added to the molar concentration to find the amount of H3O+ ions, How do we determine to do so?
by Rosalva_Mejia_41
Fri Nov 25, 2016 10:44 am
Forum: Bronsted Acids & Bases
Topic: Strong vs. weak
Replies: 3
Views: 511

Re: Strong vs. weak

I don't think you can really tell by the chemical equation. You need to solve for pka/pkb or for phka/phkb in order to determine which ones are stronger or weaker.
by Rosalva_Mejia_41
Fri Nov 25, 2016 10:41 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: equilibrium constant
Replies: 3
Views: 428

Re: equilibrium constant

A side really isn't favored in equilibrium. Its simply if one side has more concentration of ions, then it'll be more. I don't think the rate is really related. Reverse and forward reactions go at the sams rate. And since it's at equilibrium, one side adapts to keep it that way.
by Rosalva_Mejia_41
Fri Nov 18, 2016 10:27 am
Forum: Naming
Topic: Quizlet for the names of Common Ligands
Replies: 10
Views: 1194

Re: Quizlet for the names of Common Ligands

Great, thanks for clearing that up.
by Rosalva_Mejia_41
Thu Nov 17, 2016 11:42 am
Forum: Naming
Topic: Quizlet for the names of Common Ligands
Replies: 10
Views: 1194

Re: Quizlet for the names of Common Ligands

Quick question, when naming the compounds, when do we use prefixes like bis- and suffixes like -ate for the anionic compounds?
by Rosalva_Mejia_41
Fri Nov 04, 2016 3:06 pm
Forum: Hybridization
Topic: Hybridization for expanded octets
Replies: 3
Views: 809

Re: Hybridization for expanded octets

It would be sp3d, because there's 5 regions of electrons. The s counts as one, adding p3 is four, and d makes five regions.
by Rosalva_Mejia_41
Sat Oct 29, 2016 8:28 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: determining the VSEPR shape of the molecule
Replies: 2
Views: 295

Re: determining the VSEPR shape of the molecule

When using the Lewis structures, how do we do structures for molecules for example problem 4.11, when there's xenon or iodine, when they have only one unpaired electron bond have several atoms attached to them? They don't follow the octet rule so how do we determine how many atoms the whole molecule...
by Rosalva_Mejia_41
Sat Oct 29, 2016 8:22 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Triple Bonds
Replies: 1
Views: 256

Re: Triple Bonds

They have one sigma and two pi bonds.
by Rosalva_Mejia_41
Sat Oct 29, 2016 5:29 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Midterm
Replies: 9
Views: 739

Re: Midterm

Okay, thank you.
by Rosalva_Mejia_41
Sat Oct 29, 2016 3:40 pm
Forum: Hybridization
Topic: s and p hybridization
Replies: 2
Views: 319

Re: s and p hybridization

What about when we refer to sigma and pi bonds? How do we distinguish the orbital and the kind of bond it corresponds to?
by Rosalva_Mejia_41
Sat Oct 29, 2016 3:39 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Midterm
Replies: 9
Views: 739

Re: Midterm

Can some explain when or why we use hybridization? Are we expected to know how to label bonds within a molecule that are hybridized?
by Rosalva_Mejia_41
Mon Oct 24, 2016 12:56 pm
Forum: Lewis Structures
Topic: Finding Hybrid Orbitals
Replies: 5
Views: 570

Re: Finding Hybrid Orbitals

Can you help explain how to draw Lewis structures for elements like xeon? Since the orbitals are filled I thought it couldn't bond with other elements.
by Rosalva_Mejia_41
Wed Oct 19, 2016 11:12 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Question on Chapter 3, Question 19? [ENDORSED]
Replies: 4
Views: 489

Re: Question on Chapter 3, Question 19? [ENDORSED]

So that goes for pretty much all ions in the d block right?
by Rosalva_Mejia_41
Wed Oct 12, 2016 5:03 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Clarification on ENERGY LEVEL concept
Replies: 3
Views: 1793

Re: Clarification on ENERGY LEVEL concept

So for the quiz, the equation we memorize doesn't matter as long as we can distinguish if the energy is decresing or increasing and apply correctly, right?
by Rosalva_Mejia_41
Wed Oct 12, 2016 4:59 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Fall 2014 Quiz Prep
Replies: 11
Views: 936

Re: Fall 2014 Quiz Prep

Yea that's what originally did but the workbook had a different answer. Probably a mistake. Thank you.
by Rosalva_Mejia_41
Sun Oct 09, 2016 1:33 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Fall 2014 Quiz Prep
Replies: 11
Views: 936

Re: Fall 2014 Quiz Prep

A problem asks for the energy of a photon emitted with a wavelength of 5.50x10^2. I multiplied it by plank's constant and got the answer. However, I don't understand why that is if the original equations is E= h x frequency, not wavelength.
by Rosalva_Mejia_41
Wed Oct 05, 2016 4:55 pm
Forum: Quantum Numbers and The H-Atom
Topic: Atomic Spectra & Energy levels confusion
Replies: 4
Views: 390

Re: Atomic Spectra & Energy levels confusion

Maybe this can help?https://www.angelo.edu/faculty/kboudrea/general/quantum_numbers/Quantum_Numbers.htm#Angular Momentum
by Rosalva_Mejia_41
Mon Sep 26, 2016 3:44 pm
Forum: Limiting Reactant Calculations
Topic: Limiting Reactant Question M19
Replies: 3
Views: 441

Re: Limiting Reactant Question M19

Within the process, why do we have thr add all of the mole amounts and subtract it to caffeine's mass?

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