Search found 26 matches

by Gwynneth Orlino 1B
Tue Jul 30, 2019 10:36 pm
Forum: Lewis Acids & Bases
Topic: Neutralization reaction
Replies: 1
Views: 166

Neutralization reaction

How do you write a neutralization reaction given an acid and a base?
by Gwynneth Orlino 1B
Tue Jul 30, 2019 10:00 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: shape
Replies: 2
Views: 182

shape

How can you determine the shape of a coordination compound? For instance, what's the shape of Na3[Co(C2O4)3]?
by Gwynneth Orlino 1B
Tue Jul 30, 2019 3:13 pm
Forum: Ionic & Covalent Bonds
Topic: Test 2 problem
Replies: 2
Views: 183

Test 2 problem

There was a problem on test 2 that I was confused on. Can someone explain how to do this?
Using the periodic table, draw a bond with the most ionic character.
by Gwynneth Orlino 1B
Tue Jul 30, 2019 1:28 pm
Forum: Naming
Topic: Cation/Anion
Replies: 3
Views: 182

Re: Cation/Anion

In chemical formulas, the cation comes first followed by the anion. K3 is the cation and Fe(CN)6 is the anion.
by Gwynneth Orlino 1B
Tue Jul 30, 2019 1:22 pm
Forum: Sigma & Pi Bonds
Topic: Pi Bonds [ENDORSED]
Replies: 3
Views: 275

Re: Pi Bonds [ENDORSED]

Pi bonds don't allow rotation because the two parallel atomic orbitals have two areas of overlap. So if one of the atoms were to rotate, the orbitals would no longer overlap and the pi bond would break.
by Gwynneth Orlino 1B
Tue Jul 30, 2019 1:07 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: What are polydentate ligands ?
Replies: 4
Views: 218

Re: What are polydentate ligands ?

Chris Charton 1F wrote:Hexadentate is 6 binding sites.


Oops, thanks for pointing out my mistake.
by Gwynneth Orlino 1B
Mon Jul 29, 2019 2:01 pm
Forum: Bond Lengths & Energies
Topic: Boiling points
Replies: 2
Views: 258

Boiling points

When comparing two compounds, how can you tell which has the higher boiling point and why?
by Gwynneth Orlino 1B
Mon Jul 29, 2019 1:51 pm
Forum: Naming
Topic: Oxidation state
Replies: 1
Views: 177

Oxidation state

How do you find the oxidation state of the compound [Pt(H2NCH2CH2NH2)2 Cl2]?
by Gwynneth Orlino 1B
Mon Jul 29, 2019 1:48 pm
Forum: Bronsted Acids & Bases
Topic: difference btwn acid & base
Replies: 1
Views: 208

difference btwn acid & base

What's the difference between Bronsted acids and Bronsted bases? What is a conjugate base and a conjugate acid?
by Gwynneth Orlino 1B
Mon Jul 29, 2019 1:44 pm
Forum: Ionic & Covalent Bonds
Topic: Ionic vs covalent
Replies: 8
Views: 219

Ionic vs covalent

How can I determine if a compound has ionic or covalent bonds?
by Gwynneth Orlino 1B
Mon Jul 29, 2019 1:37 pm
Forum: Naming
Topic: ethylenediamine [ENDORSED]
Replies: 4
Views: 257

Re: ethylenediamine [ENDORSED]

Yes, that's correct. If a ligand already contains di-, tri-, tetra-, etc., or if it's a polydentate ligand, the prefixes bis-, tris-, tetrakis-, pentakis-, hexakis-, etc. are used instead.
by Gwynneth Orlino 1B
Mon Jul 29, 2019 1:34 pm
Forum: Naming
Topic: Fe------ferrate? [ENDORSED]
Replies: 8
Views: 381

Re: Fe------ferrate? [ENDORSED]

Metals in an anionic complex end in -ate. Iron is ferrate, copper is cuprate, lead is plumbate, silver is argentate, gold is aurate, and tin is stannate. For example, in the compound K3 Fe(CN)6, K3 is the cation and Fe(CN)6 is the anion. Iron's name in an anionic complex is ferrate, so it would be n...
by Gwynneth Orlino 1B
Mon Jul 29, 2019 1:25 pm
Forum: Properties & Structures of Inorganic & Organic Bases
Topic: Nitrogen as a Base
Replies: 6
Views: 373

Re: Nitrogen as a Base

Nitrogen can donate it's pair of electrons to a Lewis acid, making it a Lewis base.
by Gwynneth Orlino 1B
Mon Jul 29, 2019 1:03 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: What are polydentate ligands ?
Replies: 4
Views: 218

Re: What are polydentate ligands ?

Polydentate ligands can attach to the central metal atom at more than 1 binding site. If it binds at one site/donates 1 e- pair, it's monodentate. 2 sites=bidentate, 3 sites=tridentate, and 4 sites=hexadentate.
by Gwynneth Orlino 1B
Fri Jul 26, 2019 1:55 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Naming coordination compounds
Replies: 3
Views: 171

Naming coordination compounds

Is it necessary to know all the ligand names for the final?
by Gwynneth Orlino 1B
Fri Jul 26, 2019 1:41 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Oxidation states
Replies: 5
Views: 215

Oxidation states

How do you find the oxidation state of an element?
by Gwynneth Orlino 1B
Fri Jul 19, 2019 1:51 pm
Forum: Ionic & Covalent Bonds
Topic: Notation of electron configurations of ions
Replies: 5
Views: 283

Re: Notation of electron configurations of ions

The configuration for As is [Ar] 3d10 4s2 4p3. So As3+ would be [Ar] 3d10 4s2.
by Gwynneth Orlino 1B
Sat Jul 13, 2019 1:56 pm
Forum: Lewis Structures
Topic: Valence electrons
Replies: 4
Views: 219

Re: Valence electrons

I saw that Chromium actually has 6 valence e- so the electrons in the s- and d- orbitals for the outer shell were counted. Why is that?
by Gwynneth Orlino 1B
Sat Jul 13, 2019 1:14 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Orbitals beyond f-
Replies: 4
Views: 450

Re: Orbitals beyond f-

I think the reason for this is because there are more elements beyond what the periodic table provides, but those elements remain unknown. I read somewhere that there are elements beyond 121 that make up the g orbital. However, maybe it is possible to compute them based on the patterns given from t...
by Gwynneth Orlino 1B
Sat Jul 13, 2019 1:08 pm
Forum: Coordinate Covalent Bonds
Topic: Coordinate covalent bond?
Replies: 12
Views: 393

Re: Coordinate covalent bond?

Okay, thank you!!
by Gwynneth Orlino 1B
Sat Jul 13, 2019 12:20 am
Forum: Coordinate Covalent Bonds
Topic: Coordinate covalent bond?
Replies: 12
Views: 393

Re: Coordinate covalent bond?

In that case, NH3 is the base and BF3 is the acid, yes?
by Gwynneth Orlino 1B
Fri Jul 12, 2019 8:37 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge
Replies: 6
Views: 255

Re: Formal Charge

Formal charges are important in determining the best Lewis structure for a molecule with the formal charge of each atom being close to zero as possible. The lower the formal charges are, the more stable the structure.
by Gwynneth Orlino 1B
Fri Jul 12, 2019 8:18 pm
Forum: Coordinate Covalent Bonds
Topic: Coordinate covalent bond?
Replies: 12
Views: 393

Coordinate covalent bond?

We went over this in lecture today, but I'm still confused on what exactly a coordinate covalent bond is. Can someone help explain this?
by Gwynneth Orlino 1B
Fri Jul 12, 2019 7:57 pm
Forum: Lewis Structures
Topic: Valence electrons
Replies: 4
Views: 219

Valence electrons

I know that the number of valence electrons for s- and p-block elements can be determined by it's group number. Why doesn't this apply to the d-block and how do you find the number of valence electrons for those elements?

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