Search found 20 matches

by Mirrat
Sat Dec 09, 2017 6:39 pm
Forum: Naming
Topic: Identifying Ligands
Replies: 1
Views: 229

Re: Identifying Ligands

Yes. I lost a mark on my last test for this.
by Mirrat
Fri Dec 08, 2017 3:17 pm
Forum: Lewis Structures
Topic: Octet vs Formal Charge
Replies: 2
Views: 168

Re: Octet vs Formal Charge

Generally, a lower formal charge indicates a more stable molecule, so a structure which gives a lower formal charge would be preferred but if you have molecules with atoms from group 1 and 2, they cant have an expanded octet and need to obey the octet rule, so a formal charge that is not zero is oka...
by Mirrat
Fri Dec 08, 2017 3:03 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: effects on partial pressure
Replies: 2
Views: 324

Re: effects on partial pressure

Increasing the temperature would increase the total pressure of the system and vice versa- since the total pressure is just a sum of all combined partial pressures I would assume that both partial and total pressures increase. Volume varies inversely with pressure and a decrease in volume would mean...
by Mirrat
Thu Dec 07, 2017 2:27 pm
Forum: Lewis Acids & Bases
Topic: Bronsted vs. Lewis
Replies: 6
Views: 279

Re: Bronsted vs. Lewis

Bronsted and Lewis are just different definitions for the same thing i.e. either an acid or a base. Bronsted defines it in terms of being either H+ proton donors or acceptors while Lewis defines it in terms of being electron acceptors or donors.
by Mirrat
Thu Dec 07, 2017 2:22 pm
Forum: Naming
Topic: Oxidation Numbers and how to get them
Replies: 4
Views: 329

Re: Oxidation Numbers and how to get them

Equate the sum of the charge of each ligand and x to be equal to the charge on the complex ion where x is the oxidation no. of the central metal atom. Solve for x.
by Mirrat
Mon Nov 27, 2017 6:21 pm
Forum: Biological Examples
Topic: Lewis Acid/Base?
Replies: 2
Views: 261

Re: Lewis Acid/Base?

A lewis acid can be considered the H+ ion so it accepts an electron pair. A lewis base is OH- so it donates the electrons.
by Mirrat
Sat Nov 25, 2017 6:28 pm
Forum: Ideal Gases
Topic: Units of Partial Pressure
Replies: 7
Views: 466

Re: Units of Partial Pressure

Since we use SI units, I would think Pascals.
by Mirrat
Sat Nov 25, 2017 12:29 pm
Forum: Naming
Topic: Thio- ?
Replies: 5
Views: 286

Re: Thio- ?

yes, the ligands bond to the central metal atom.
by Mirrat
Fri Nov 24, 2017 5:15 pm
Forum: Naming
Topic: Thio- ?
Replies: 5
Views: 286

Re: Thio- ?

Thio is used when an oxygen atom in the compound has been replaced by a sulfur atom. N or S is underlined depending on when it is the atom that 'links' to the compound, for eg O in H2O could be underlined to show that it is the one linking.
by Mirrat
Fri Nov 24, 2017 5:10 pm
Forum: Naming
Topic: Polydentate
Replies: 3
Views: 192

Re: Polydentate

polydentate ligands are ligands that have multiple bonding sites. Carbonate is monodentate, because it has 120 degrees between its oxygens so both don't bind to the same metal. But sometimes, carbonate bonds to two different metals, making it bidentate.
by Mirrat
Tue Nov 14, 2017 4:04 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Radicals and Their Shape
Replies: 4
Views: 264

Re: Radicals and Their Shape

Lone pairs take up more space on the molecule than bonding pair electrons because they face a lot of repulsion from neighbouring lone pairs and bonding pairs so they usually cause the molecule to have a bent/angular shape.
by Mirrat
Wed Nov 08, 2017 9:35 pm
Forum: Administrative Questions and Class Announcements
Topic: Video Modules and Pre Assessments
Replies: 1
Views: 175

Video Modules and Pre Assessments

No modules for Chapter 3 exist?
by Mirrat
Sun Nov 05, 2017 4:25 pm
Forum: Trends in The Periodic Table
Topic: Electron Affinity
Replies: 4
Views: 293

Re: Electron Affinity

What's the relationship between electron affinity and electronegativity?
by Mirrat
Sat Nov 04, 2017 8:46 pm
Forum: Administrative Questions and Class Announcements
Topic: Midterm Review [ENDORSED]
Replies: 4
Views: 369

Re: Midterm Review [ENDORSED]

Is it still useful to attend the review sessions if you don't have any questions to ask? Or are they only for discussing problems?
by Mirrat
Sat Oct 28, 2017 7:16 pm
Forum: Administrative Questions and Class Announcements
Topic: Nov 9th Midterm
Replies: 1
Views: 207

Nov 9th Midterm

When will the location for the Chem Midterm be posted?
by Mirrat
Wed Oct 25, 2017 12:12 am
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration writing
Replies: 8
Views: 368

Re: Electron Configuration writing

Also, when doing problems is everyone writing it like Professor Lavelle did it in class, i.e. for example px1 py1 (where x and y are subscripts) or just p2?
by Mirrat
Sun Oct 22, 2017 10:11 pm
Forum: Student Social/Study Group
Topic: De Neve Study Group
Replies: 2
Views: 363

De Neve Study Group

Any people taking Chem14A in De Neve or nearby who want to help each other out?
by Mirrat
Sun Oct 22, 2017 10:09 pm
Forum: Administrative Questions and Class Announcements
Topic: Homework [ENDORSED]
Replies: 1
Views: 150

Homework [ENDORSED]

Have homework points been uploaded on MyUCLA?
by Mirrat
Sat Oct 07, 2017 6:48 pm
Forum: Empirical & Molecular Formulas
Topic: Friday Oct 6 Test
Replies: 7
Views: 490

Re: Friday Oct 6 Test

What was the correct answer for the identity of Compound X?
by Mirrat
Sat Oct 07, 2017 6:45 pm
Forum: Significant Figures
Topic: All students read this sig fig post [ENDORSED]
Replies: 116
Views: 10385

Re: All students read this sig fig post [ENDORSED]

What was the penalty for wrong significant figures on the test last Friday (10/06/17)?

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