CHEMISTRY COMMUNITY

306060519

When temperature is constant, the change in U comes out to be 0.

306060519

You can tell a system is reversible if it can be reserved back into its original state using mechanisms.

306060519

W = 0 when there is no change in volume within the system.

306060519

The internal energy is the opposite of the external energy in a bomb calorimeter.

306060519

You need to use the formula entitled [H+][A-]/[HA].

306060519

Happy late Birthday ! I hope you had a nice day.

306060519

More equilibrium constants the more the creation of products are favored within the system.

306060519

All of it. Make sure you know everything properly.

306060519

If you're not part of the solution, you're part of the precipitate.

306060519

Ask the chemist in your life to read this word at you: unionized.

306060519

Why is ground beef not electrolyzed. Because it is grounded.

306060519

In an open system, the surrounding exchanges matter and heat with the system.

306060519

The characteristics determine the rates of the equation itself.

306060519

Calibrating refers to the process of setting up a system to work properly and reflect numbers properly.

306060519

No, we are provided the ligand list with the final exam.

306060519

You look at the amount of electrons that the anode/cathode is receiving/giving.

306060519

Yes, Q=K in equilibrium. Delta G does not always equal zero though.

306060519

It represents Boltzmann concept of degeneracy. Look up the Boltzmann equation to find out.

306060519

The final will be 30% of the Outline 1, 30% of the Outline 2, and 40% of the Outline 3.

306060519

Don't worry, the final was not too bad. Hopefully you are able to do amazing on it. Just focus on studying the past content and you will make it.

306060519

You should seek to balance the two half reactions with themselves in order to figure out the true balanced form.

306060519

You arrange them in order of the most negative reaction potentials. This determines how strong they are as a reducing agent.

306060519

OH- is included because you need a base within the equation to deconstruct the two reactant factors.

306060519

OH- is included because you need a base within the equation to deconstruct the two reactant factors.

306060519

Yes, when you write the rate laws, you always cancel out the intermediates. This is because they cancel out when you are adding the equation together.

306060519

Sorry, but there is no such thing as a negative concentration. You might be thinking about the concentration wrong or mistaking it for something else.

306060519

The cathode IS the reducing one, so you are properly on track to solving the problem. The anode is the oxidating one. Remember OILRIG.

306060519

Essentially, reactions have the capabilities to go both forwards and backwards due to the nature of the equilibrium state they can enter.

306060519

Hello,

In equilibrium, the reactions go both forwards and backwards at a consistent rate, thus making it equilibrium.

306060519

You do this as to not create unnecessary barriers when trying to solve the problem.

306060519

Hello, I believe that you are having an issue due to the way you are rounding when attempting to solve your equations.

306060519

isometric- constant volume
isothermal- constant temperature
isobaric- constant pressure
reversible- can go forward and backward... equilibrium
irreversible-can go forward or backward

306060519

You need to look at them as methods to interpret the lack of value in an equation.

306060519

What I would recommend is to attend the step up sessions that are provided by the lavelle class guide.

306060519

If there are an equal number of moles of gaseous substances on both sides of the arrow, the change in volume has an equal effect on the concentrations of reactants and of products. Thus, it has an equal effect on the forward and reverse rates, and the system remains at equilibrium.

306060519

Hello, all the points you covered were very intelligent and seemed to be true; thank you for these notes.

306060519

R concentration is larger in the cell, while the concentration of P is lower in the cell.

306060519

Positive work is compression and negative work is expansion.

306060519

at equiliburium, there is no net change of generated product vs generated reactant.

306060519

If you refer to the formula sheet provided, they are all listed properly.

306060519

You got this! If it makes you feel better, go on multiple walks! They are known for reducing anxiety.

306060519

You need to contact the school's IT tech team and they will assist in resolving your issues.

306060519

Yes, you can download the textbook and add it to your kindle app or google books to read it offline.

306060519

Congratulations!! I am happy for the blessings you have received. I hope you had a nice day.

306060519

The topics that will be covered are those featured in Outlines 3 and 4 posted on the modules.

306060519

When constructing the order, focus on the solid being the outside of the structure. The other values descend inwards.

306060519

Essentially, you just shift over the information that you used before while replying to posts on a new forum labelled 14b.

306060519

you should solve it without the "-x" on the ice table. then do the percent ionization and if it is above %5 then you should re-do it and with the "-x" and use the quadratic formula.

306060519

If Q < K, then the reaction proceeds spontaneously to the right as written, resulting in the net conversion of reactants to products. Conversely, if Q > K, then the reaction proceeds spontaneously to the left as written, resulting in the net conversion of products to reactants. If Q = K, then the sy...

306060519

if you look at the equation PV=nRT, you see that have a positive correlation meaning that an increase in one of these will increase the other. increasing temperature adds energy which increases movement and causes more pressure.

306060519

Using the equation with entropy and heat, you can know by the sign and magnitude of delta s and delta h. With both being negative, It will be spontaneous at low temperatures. With both being positive, it will be spontaneous at high temps. wIth positive s and negative h it will be spontaneous and the...

306060519

Are there any special and specific properties that calorimeters possess that makes them different than the real world? I understand the concept of systems, is it essentially just an isolated system?

306060519

What exactly is the purpose of titration? Is it really to just purify a substance? Or are there other benefits beyond this surface application?

306060519

What is the best way to approach heat capacities? Would it be to simply master the formulas and then shift them around? Or would it be to construct a new one every time (like what you would see in a physics problem).

306060519

When it comes to heat capacities, what exactly makes the difference between them in relation to phase changes? Is there even a difference or are they essentially the same thing.

306060519

What exactly is the relationship between internal energy and total heat within a system? Is there necessarily a difference? Or is basically a difference of application that makes the difference.

306060519

It does not. The tendency is defined by the amount of valence electrons that are held in the shell. Consider this information.

306060519

You need to introduce some kind of trickery and manipulation in order to make it work, for example introducing a double bond or keep shifting it.

306060519

You utilize the concept of the prefixes whenever they are needed in order to properly describe what is occurring on the specific molecule that you wish to talk about.

306060519

The importance is that they are placed in the position they are by the molecules in order to create the most distance between each of them without compromising shape, which gives it its strength and resistance to being broken up.

306060519

To find the acid strength, you need to look at the central atom. The more electronegative this central atom is, the more strong the acid will be.

306060519

When it comes to determining the lewis bases vs the lewis acids, you need to look at how ready to accept electrons the overall molecule is. If it is ready to give out electrons, then it is a base. If it is ready to accept them, then it is an acid. Look at the periodic table to see the patterns and t...

306060519

To make a salt, you need to combine a base and an acid, and when the H+ ion is replaced and the result is a neutralization equation. Once the formula is neutralized, you will be left with a salt.

306060519

The variability comes from the molarity of the subject then apply it to the negative logarithm function of your calculator. This will give you the pH level, which is necessary in order to determine the ability of the molecule to degrade other substances.The more acidic the more capable it is of this...

306060519

They are incredibly related and target the same principals, but you need to look at them as if you would look at the same piece of art from two different perspectives. They are related to each other, but cover different variable aspects of the same situation. Good luck studying.

306060519

What I did in order to memorize the amphoteric oxides within a system is that I memorized this image. Hopefully it helps you as much as it helped me. Good luck studying. I have attached it below. https://www.google.com/search?sca_esv=587936899&rlz=1C5CHFA_enUS892US892&sxsrf=AM9HkKmcGLzPBfQR-...

306060519

The method in order to determine whether something is basic or acidic is that you take the negative logarithm of the molarity of the molecule itself. This will produce the pH of the molecule, allowing you to determine whether it is basic or acidic.

306060519

No,

The oxidation number is found by looking at the amount of electrons that it has in its valence shell for each atom, and then adding them all up together. There is no formula, just a general method to find the correct answer.

306060519

Yes, I would recommend the idea of picturing only two trend waves. On a periodic table, trends will either go: up and right, or down and left. What I did was look up each different thing and then associate it to either one of these concepts. This will help you succeed. Good look studying, I believe ...

306060519

The reason why you utilize n=6 and n=7 is because you are attempting to find the amount of energy lost per step of the transition. You are thinking big picture right now, you need to narrow down your focus and target only a single step at a time.

306060519

Hello, I have heard that there is a possibility of the concepto of ketones or alkane being covered on the exam, but I do not believe that you need to worry as Professor Lavelle would most likely include their composition within the realm of something simple that is able to be shown on the screen to ...

306060519

I am sorry I do not have an explanation for that specific problem, but when you are considering the concept of acidity, the more acid that a chemical structure is has a direct correlation to how polar the molecule is overall. If you would like a more precise explanation, simply take the negative log...

306060519

The answer to this is that within the concept of determining whether something is ionic or covalent, there is more of an emphasis on the electronegativities at play within the system, rather than one on strictly oxidation numbers. Consider this concept when attempting to solve the problem.

306060519

Hello, Within the real world, do resonance structures always lean towards a certain stability? Are there certain levels that each wishes to reach in order to attain proper stability? Or will it always reach towards the point of lowest electronegativity? I am a bit confused on the subject itself and ...

306060519

When it comes to the concept of reagents, are there any other situations in which they would engage in reactions other than being completely utilized as part of a chemical equation? Or do we always assume that they will play their part when put within the context of an equation.

306060519

Hello,

When it comes to two molecules with the same amount of atoms, are the atoms within these structures always the same? For example, in a hypothetical would we need to assume this or should we engage in some form of electronegativity consideration in order to get our proper answer.

306060519

When looking at a question such as 2E.1, does the concept of atomic attraction come into play when attempting to analyze the bond angles? For example, are the shapes created by the overall magnetism or by the relationship between the bonds presented?

306060519

The release of energy always comes at the same time as a transition into a state where there is more stability for the system itself, thus explaining this concept and why you had this question.

306060519

Hello,

I believe that all you will need to do is pursue the concepts that are readily available to solve the basics of a wave equations such as the height and frequency. I do not believe that the professor will become incredibly in depth when it comes to the conceptual applications on the exam.

306060519

What you do you call a bird mixed with a bad chemist? A QUACK !

306060519

I heard the difference between oxygen and nitrogen is that one is always a lot more electroNEGATIVE!

306060519

Essentially, what the dashes and wedges portray is the concept of the molecule existing within a three dimensional space and protruding or facing away from you as it is contorted. These are known as resonance structures within the overall concept of chemistry as a whole

306060519

When you are organizing the structure of a molecule, you need to think about the various properties at play and how they work alongside each other. I feel that you might be ignoring the concept of a charge within a system as well as how the various molecules contain different levels. That would expl...

306060519

When you are organizing the structure of a molecule, you need to think about the various properties at play and how they work alongside each other. I feel that you might be ignoring the concept of a charge within a system as well as how the various molecules contain different levels. That would expl...

306060519

Within a system, you need to focus on the concept of building structures around the molecule with the smallest electronegativity. On a periodic table, the more right and up you go on the periodic table shows you how electronegative something is, with the most being Flourine. Look for the molecule th...

306060519

When I was trying to take my exam the respondus was also not working. What I did to correct this issue was that I shut off my computer completely while also rebooting the software over and over again. Best of luck!

306060519

When it comes to the final itself, should we expect a majority to be sourced from the content that we covered after the second midterm? Or should we approach this one as a sort of round up of everything we have learned so far mashed together into one exam.

306060519

When it comes to the final itself, should we expect a majority to be sourced from the content that we covered after the second midterm? Or should we approach this one as a sort of round up of everything we have learned so far mashed together into one exam.

306060519

Hello, When crafting Lewis structures, I encountered a unique situation which confused me deeply. I was asked to draw the lewis structure for NH4Cl aka ammonium chloride, and I noticed something strange. The LS is split into two parts, with the NH4 on the inside and the Cl portion separate. I unders...

306060519

Hello, When it comes to the process of crafting Lewis structures, is the rule in regards to the placement of the least electronegative molecule on the inside of the structure ironclad? Or can it be bent a little bit in order to make the functioning of the structure work more properly. For example, w...

306060519

Hello, The question I have is: when we are completing a problem, if presented with something along the lines of ammonium chloride or barium hydroxide, how are we supposed to know the molecular formula? Deriving these seems quite challenging and I am wondering if there is a possible method when not p...

306060519

On the exams in the future the professor will give us the necessary equations that we will need to utilize. You only really need to learn the simple ones that get repeated a lot like oxygen or glucose

306060519

Hello,

You are right about the middle featuring the least electronegativity. This is because they are stuck in an awkward point in the middle of begging for a lot and wanting to kick out a small amount.

306060519

Is there is a method behind the changing electronegativity that the periodic table displays? Why is it ordered in regards to the electronegativity and should this be the primary method by which we look at it? Or just another method of identification that we can look at.

306060519

When it comes to the electron shells of a molecule, is there necessarily a limit to the concept of the expanding shells? For example, within the range of a molecule can there be a maximum? Or would continually adding electrons just serve to power up the molecule.

306060519

hey, It should be fundamental to know that the ratio of protons to electrons is important in the ionic size. Since protons can never be removed but electrons could be. The protons pull in the electrons, therefore the lower electrons (usually lowering to the lower electron shell) would mean they are ...

306060519

when filling orbital diagrams, I understand that there are some element that should be filled differently in order to be sure that the orbitals are more stable than the rest? Which are these and why does it make them more stable one?

306060519

hey i believe that the photons in the light provide enough energy to overcome the binding energy of the electrons(the work function).

306060519

The periodic table is designed in a way to hold trends of elements reactivity. They may be used for us when we find electronegativity, radii size, electron affinity and other things we my get tested on and should know. I usually understand that atomic radius size and use that to understand other qua...

306060519

You need to utilize the overall translation system method you learned in math

Search found 109 matches