Search found 30 matches
- Sun Dec 09, 2018 11:58 pm
- Forum: Industrial Examples
- Topic: Coordination compounds as Chemotherapy drugs
- Replies: 9
- Views: 1841
Re: Coordination compounds as Chemotherapy drugs
Are there any other coordination compounds that have biological importance relevant to what we're learning?
- Sun Dec 09, 2018 11:57 pm
- Forum: Biological Examples
- Topic: Cisplatin
- Replies: 4
- Views: 769
Re: Cisplatin
What is the structure of cisplatin?
- Sun Dec 09, 2018 11:56 pm
- Forum: Naming
- Topic: Regarding the test... [ENDORSED]
- Replies: 12
- Views: 5819
Re: Regarding the test... [ENDORSED]
Regarding the test, when will our final grades be posted?
- Sun Dec 02, 2018 12:57 pm
- Forum: Conjugate Acids & Bases
- Topic: Difference between Lewis and conjugate acids and bases
- Replies: 4
- Views: 3564
Re: Difference between Lewis and conjugate acids and bases
Does the label of the compound switch from Lewis acid to conjugate base when the reaction flips such that the name depends on which is on the reaction or product side.
- Sun Dec 02, 2018 12:48 pm
- Forum: Lewis Acids & Bases
- Topic: bronsted acid vs. lewis acid
- Replies: 4
- Views: 502
Re: bronsted acid vs. lewis acid
Because the definitions differ a little bit in that one is broader than the other, can one be a Bronstead acid without being a Lewis acid.
- Sun Dec 02, 2018 12:38 pm
- Forum: Naming
- Topic: If a ligand has a name with...
- Replies: 5
- Views: 525
Re: If a ligand has a name with...
A ligand is an ion or molecule that binds to a central metal atom to form a coordination complex.
- Sun Nov 25, 2018 1:09 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: How to state bond angles.
- Replies: 7
- Views: 772
Re: How to state bond angles.
Would we ever have to say << 109.5 degrees when there are more lone pairs?
- Sun Nov 25, 2018 1:03 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Naming the Shape
- Replies: 16
- Views: 1278
Re: Naming the Shape
I think we have to memorize the bond angles for the structures we were shown in class. I believe we're also expected to know how the angles are affected by lone pairs.
- Sun Nov 25, 2018 12:59 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: pi and sigma bonds
- Replies: 9
- Views: 1454
Re: pi and sigma bonds
Does knowing whether a bond is a pi bond or sigma bond help us figure out the structure or shape of the molecule?
- Sun Nov 18, 2018 3:10 pm
- Forum: Dipole Moments
- Topic: Hydrogen Bonds
- Replies: 20
- Views: 1563
Re: Hydrogen Bonds
Are there any applications to Hydrogen bonding being the strongest bonds?
- Sun Nov 18, 2018 3:09 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: polar vs nonpolar
- Replies: 6
- Views: 761
Re: polar vs nonpolar
What are some other factors besides electronegativity that can affect the polarity of a molecule? Do these same factors affect the individual bonds between elements in the molecule?
- Sun Nov 18, 2018 3:06 pm
- Forum: Sigma & Pi Bonds
- Topic: usage of sigma/pi
- Replies: 6
- Views: 705
Re: usage of sigma/pi
Can the sigma/pi bonds also be used to determine the structure of the molecule?
- Sun Nov 11, 2018 6:24 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Hydrogen Bonding
- Replies: 7
- Views: 728
Re: Hydrogen Bonding
How do we use the attractive energy to determine the structure of the molecule?
- Sun Nov 11, 2018 6:17 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Lone Pairs
- Replies: 7
- Views: 739
Re: Lone Pairs
I believe H2O would be tetrahedral shape because there are 2 bonding pairs and 2 lone pairs resulting in a bent angle of 104.5 degrees.
- Sun Nov 11, 2018 6:09 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Atom Distance, repulsion?
- Replies: 6
- Views: 909
Re: Atom Distance, repulsion?
How does the electron repulsion affect the bond lengths of the molecule, as well as the overall shape?
- Sun Nov 04, 2018 9:44 am
- Forum: Octet Exceptions
- Topic: Ions and Exceptions to the Octet Rule
- Replies: 3
- Views: 716
Re: Ions and Exceptions to the Octet Rule
Elements in the third period and up can have an expanded octet because they have access to the d-orbital; so there are many elements besides copper and silver that serve as an exception to the octet rule.
- Sun Nov 04, 2018 9:36 am
- Forum: Lewis Structures
- Topic: Formal Charges on Midterm
- Replies: 2
- Views: 374
Re: Formal Charges on Midterm
I don't think you necessarily have to write out your calculations for the formal charge but it's probably safer to write the number next to each element.
- Sun Nov 04, 2018 9:31 am
- Forum: Lewis Structures
- Topic: Lewis Structure
- Replies: 2
- Views: 285
Re: Lewis Structure
It's also important to look at the formal charges of each element in order to figure out the most likely bonding.
- Sun Oct 28, 2018 9:41 am
- Forum: Lewis Structures
- Topic: Drawing Lewis Structures with Charges
- Replies: 6
- Views: 878
Re: Drawing Lewis Structures with Charges
Can Lewis structures be used to construct the molecular structure of the element?
- Sun Oct 28, 2018 9:37 am
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron Configuration Exceptions [ENDORSED]
- Replies: 3
- Views: 526
Re: Electron Configuration Exceptions [ENDORSED]
What other exceptions are there to the typical electron configuration order? Is 4s always placed before 3d?
- Sun Oct 28, 2018 9:32 am
- Forum: Octet Exceptions
- Topic: Octet Exceptions
- Replies: 3
- Views: 540
Re: Octet Exceptions
If Li and Be are exceptions due to their metallic characteristics then why are other metals not exceptions as well?
- Fri Oct 19, 2018 9:55 pm
- Forum: Properties of Light
- Topic: calculating wavelength
- Replies: 10
- Views: 1181
Re: calculating wavelength
How do we know when to combine De Broglie's equation with E = hv? Is it for specific conditions?
- Fri Oct 19, 2018 9:35 pm
- Forum: Properties of Light
- Topic: Equations
- Replies: 7
- Views: 552
Re: Equations
With all the equations in this section how do we know when a v is frequency and when it represents velocity?
- Fri Oct 19, 2018 9:28 pm
- Forum: Trends in The Periodic Table
- Topic: s, p, d, f
- Replies: 16
- Views: 4345
Re: s, p, d, f
Orbitals are the regions of space in which electrons are most likely to be found. Each orbital is denoted by a number and a letter in which the letters (s,p,d,f), describe the shape of the orbital. An s orbital, the first energy level, is spherical and has no nodal planes. A p orbital has two lobes ...
- Sat Oct 13, 2018 11:22 am
- Forum: Photoelectric Effect
- Topic: Good youtube videos to help me better understand photoelectric effect? [ENDORSED]
- Replies: 3
- Views: 533
Re: Good youtube videos to help me better understand photoelectric effect? [ENDORSED]
The modules are definitely helpful, but I found that this video acts as a good supplement.
https://www.youtube.com/watch?v=-LECEvusk8E
https://www.youtube.com/watch?v=-LECEvusk8E
- Sat Oct 13, 2018 11:09 am
- Forum: Photoelectric Effect
- Topic: Equations
- Replies: 3
- Views: 171
Re: Equations
Do the same parameters for when to use this equation apply to the wavelength formula or any others that we're using in this section?
- Sat Oct 13, 2018 11:04 am
- Forum: Photoelectric Effect
- Topic: Photoelectric Effect Initial Purpose
- Replies: 4
- Views: 445
Re: Photoelectric Effect Initial Purpose
I understand how the experiment debunked the idea that light consists only of wave-like properties; however, how did the results lead them to the conclusion that light contains photons of energy where one proton interacts in one electron?
- Fri Oct 05, 2018 8:13 pm
- Forum: Empirical & Molecular Formulas
- Topic: Empirical formula set up
- Replies: 9
- Views: 672
Re: Empirical formula set up
If we start with 100g then it's easier to figure out the grams of each molecule based on the percentages given. I didn't learn to answer questions this way until recently and I think this method makes it a lot easier.
- Fri Oct 05, 2018 8:03 pm
- Forum: Balancing Chemical Reactions
- Topic: Balancing reactions tips
- Replies: 29
- Views: 2156
Re: Balancing reactions tips
When balancing equations I find it helpful to list out the different elements on each side and tackle each element individually as I go. I re-write the equation with the coefficients I'm trying in order to keep my work organized so I don't get confused.
- Fri Oct 05, 2018 7:57 pm
- Forum: Limiting Reactant Calculations
- Topic: What is the mass of AgCl produced?
- Replies: 10
- Views: 9097
Re: What is the mass of AgCl produced?
I'm having some difficulty with a similar question: Consider the unbalanced reaction: PCl3+ H2O --->HCl + H3PO3 What mass of HCl is produced by the reaction of 23.6g of PCl3? Do you find the mass of HCl through a similar method?