CHEMISTRY COMMUNITY

Rummel Requerme 1E

The way I like to think about it is that in the reactants side of a chemical reaction, the acid is what gives it's H+away and the base is what will receive the H+. Though on the products side, it's the product that receives the H+ that is the conjugate acid ( it would have been the base on the reac...

Rummel Requerme 1E

Chloe Blume 1F wrote:How can you determine what is a strong acid vs a weak acid?

I wonder the same thing, but I've heard one should focus on the conjugate base. The more stable base has the stronger acid.

Rummel Requerme 1E

As stated above, the conjugate base is a good indicator: the more stable it is, the more strong the acid is.

Rummel Requerme 1E

Clement is correct. It should be Myoglobin and Iron (Fe), respectively.

Rummel Requerme 1E

They're used to help portray a 3-D figure without having to draw one out with depth.

Rummel Requerme 1E

Ligands must at least have one lone pair to donate to the central atom (hence creating a coordination between the two atoms).

Rummel Requerme 1E

Hope_Pham_1G wrote:Are ligands always nonmetal atoms?

As far as I've learned, they are. But there could be exceptions? (I could be wrong, but I've also encountered only nonmetal atoms)

Rummel Requerme 1E

Hope_Pham_1G wrote:Are ligands always nonmetal atoms?

As far as I've learned, they are. But there could be exceptions? (I could be wrong, but I've also encountered only nonmetal atoms)

Rummel Requerme 1E

They are both equally important. This is because each contributes their respective characteristics to an atom.

Rummel Requerme 1E

Calculate formal charge and try your best to have to be as close to 0 as possible.

Rummel Requerme 1E

MeghetyManoyan1A wrote:Yes, it refers to the most plausible resonance structure, which has the lowest formal charge/is the most stable.

Maghety is correct. This means to search for the structure with the lowest formal charge.

Rummel Requerme 1E

I've seen both cases in which problems used lines and dots, respectively. It is recommended, however, to use lines so as to easily identify bonds and to make it look more organized than to stack dots on top of each other.

Rummel Requerme 1E

ElizabethP1L wrote:Will we have to use significant figures for this test just like midterm?

It's best to keep your sig figs consistent. So, yes: I would recommend using the correct number of sig figs (if not required, it's good practice).

Rummel Requerme 1E

I agree with Heung. There is no particular rule to follow if double bonds are prioritized over lone pairs. It's a matter of minimizing the formal charge, but also taking into consideration the capabilities (bond-wise) of a given atom.

Rummel Requerme 1E

Figure out how many valence electrons that the given elements have. The central atom is usually the one with the smallest ionization energy (know the periodic trend!) and then figure out how many electrons need to be shared to achieve an octet. Use double bonds, etc. accordingly to avoid having exce...

Rummel Requerme 1E

Patience is right. Covalent bonds don't involve metals, while ionic bonds include one non-metal and a metal.

Rummel Requerme 1E

There isn't a specific way to draw the dots. I thought so myself, but it's best to just draw them out (in no particular order) and see which are unpaired /paired! From there, you can determine what bonds to draw.

Rummel Requerme 1E

Professor Lavelle said to only worry about Chapter 1, 2, and the Fundamentals. Best to review Outline 1 & 2!

Rummel Requerme 1E

It's dependent on the relationship between the two elements: if they are two non-metals, it is covalent. If only one is non-metal while the other is metal, it is ionic.

Rummel Requerme 1E

Anions are negatively-charged, while cations are positively-charged. The way I remember it is that "cations" has a "t" just like in positivi-T!

Rummel Requerme 1E

Lavelle said not to use the deBroglie Equation in regards to light.

Rummel Requerme 1E

Prediction of wavelength when the electron is moving between energy levels.

Rummel Requerme 1E

A good rule of thumb for myself is that anything that has a given mass will have a wavelength. So, yes; but of course, there may be certain exceptions somewhere down the line.

Rummel Requerme 1E

First, you solve for v in the second equation, then plug that into E=hv.

Rummel Requerme 1E

Avoid using De Broglie when it comes to light, only when mass comes up.

Rummel Requerme 1E

Frequency and Wavelength have an inverse relationship: the higher the frequency, the shorter the wavelength; the shorter the frequency, the longer the wavelength.

Rummel Requerme 1E

Personally, I just follow the periodic table, no matter how tedious it may be to spell out the entire number, just to be safe. You could just save the rounding for the end, while also attaching a solution that isn't rounded possibly.

Rummel Requerme 1E

It would remain the same. Changing it like that would translate a different structure.

Rummel Requerme 1E

It was recommended by my previous TA to just go off of what the problem begins with unless stated otherwise. For instance, if they give you grams for any part of the problem, your result should reflect grams.

Rummel Requerme 1E

There should be no loss of mass, as stated in the law of conservation of mass. If there were a case in which it does not add up to 100%, for instance, combustion, then it's safe to assume the missing portion is oxygen.

Rummel Requerme 1E

It's bad style (actually, even looked down upon by scholars) to be leaving fractions in the equation. Multiply both sides by whatever number, in this case, the number 2, and leave whole numbers.

Rummel Requerme 1E

Essentially accuracy is how close you are to the actual result, as precision is how close your results are in respect to one another.

Rummel Requerme 1E

I also approached one of the TA's in a previous Chem class that I was enrolled in; it was said the SIg figs aid in how precise AND accurate our results will be. If we are inconsistent with the number of sig figs, that data that is calculated will end up being completely different from the actual sol...

Rummel Requerme 1E

REPOST:
Nathan Cai (1G), George Faor (1K), Rummel Requerme (1F)
What are coordination compounds? How do we name them?
Original upload: Thursday November 25, 2015

Rummel Requerme 1E

https://www.youtube.com/watch?v=U4m9kE7hKnA&feature=youtu.be

Nathan Cai (1G), George Faor (1K), Rummel Requerme (1F)
What are Coordination Compounds? How do we name them?

CHEMISTRY COMMUNITY

Search found 35 matches

Re: Conjugate Acids/Bases

Re: Acid Strength

Re: Strength [ENDORSED]

Re: Hemoglobin

Re: Bond types

Re: Ligands

Re: Coordination compound

Re: Coordination compound

Re: Bonds or Lone Pairs more important?

Re: ranking

Re: Clarifying wording

Re: Dots vs lines to represent electrons

Re: Test #3

Re: Bonds or Lone Pairs more important?

Re: Best way to start Lewis Structures

Re: Ionic vs Covalent

Re: Order of Dots

Re: Trends to Know

Re: Types of Bonds

Re: cation vs anion

Re: Which Equation Do We Never Use for Light? [ENDORSED]

Re: Rydberg [ENDORSED]

Re: does everything have a wavelength

Re: Combining E=hv and c=ƛv [ENDORSED]

Re: Wavelength and De Broglie Equation [ENDORSED]

Re: frequency and wavelength [ENDORSED]

Re: Rounding atomic weight (general question) [ENDORSED]

Re: Molecular to Empirical

Re: Correct Units?? [ENDORSED]

Re: Mass percentage

Re: Balancing equations with fractions [ENDORSED]

Re: Accuracy vs Precision

Re: Why are sig figs important?

CHEM 14A VIDEO: Coordination Compounds (Repost)

CHEM 14A VIDEO: Coordination Compounds