CHEMISTRY COMMUNITY

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A greater increase in disorder will indicate more ordered arrangement of the molecules in a liquid state because entropy would increase when a mole of liquid gets turned into gas. so the more entropy increase in the phase changes, then the more ordered the liquid will be.

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I see a lot of people mention q=mCAT but other mention q = mCdeltaT . i personally would say that using the q=mCdeltaT would work bets because i use this equation for some of the problems that are in the homework and it has been working. unless using the q=mCAT would be easier but i have not tried i...

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If we had a larger equilibrium constant then that would mean that the reaction will favor the products. which means that it would be stable because they will favor the reaction that causes the stable state.

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If we had a larger equilibrium constant then that would mean that the reaction will favor the products. which means that it would be stable because they will favor the reaction that causes the stable state.

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An anode is when oxidation is occurring. while in order to know if it is a cathode then there will be. reduction happening meaning that we can use the half-reduction (of the reduction) to represent the cathode, while for the anode we would use the oxidation half reduction.

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An easy way to know redox potential if is the question tells you what the voltage difference is. you would have to use the potentiometer in order to find the redox potential.

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The difference between the redox in the acidic or basic solution is that you will use H^+ ions to balance the hydrogen and the OH^- will be used to balance the oxygen/hydrogen.

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Technically we don't need to know the elements that can oxidize O2 and H2O when it comes to rusting. i believe the important thing that we should know is there is or will be a barrier between oxygen, water, and iron

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The reduction potential is the one with the greatest value of the cathode that is in the equation. If you get a cell diagram the the half reaction that to the left would be the oxidized reaction

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what I remember being told is that we should always try to assign lowest number possible to the first constituent.

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For this problem use the arrhenius equation k = Ae^−EaRT where A is the frequency factor 8.07×1011. You should convert the temperature into Kelvin from Celsius, rearrange the equation to kA = e^−EaRT and take the natural log of both sides so that your equation becomes Ea =−RTln(k/A). You can then i...

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Usually the exothermic reaction is spontaneous a way to determine if it is all you can do is just check to see if delta G is negative. If delta G is positive them we can determine and say that it is non-spontaneous

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I suggest looking at the list Lavelle made and just try to memorize them because it would really help when taking the exams

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I am so glad I saw this after taking the final for this class this made me feel better.

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Usually I try to remind myself that what ever the outcomeI know I did my best, and if I didn't get the score that I wanted then I know I just need more practice and extra help in order to reach the level of mastery from what ever the subject may be; and not let the score define who i am. I take a fe...

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I would really emphasize the Khan Academy video they are really good at breaking it down and explaining step by step as well as providing different examples with different wording and working through them.

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I didn't really use the practice problems i used the practice test that were given to us in the review sessions as way to study for the final and looking at conceptual question a little more since seems like conceptual questions have been given a lot more than the actual practice problems

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E doesn't equal Enot because E isn't a standard state, while Enot is the standard cell potential, since we know that a standard state doesn't change for a given reaction. So E is dependent on the E = E°-RT/nF (lnQ) equation.

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I would say that for the shorthand notation for the redox reaction, the products and reactants that are involved with the reaction usually they go through the physical states of either solids, gas, or liquids, or aqueous. and they usually are right next to them in parentheses so its easier to identi...

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Cathodes have a positive charge while an anode will always have a negative charge. The cathodes are always going to be oxidizing and gaining electrons while the anode is always reducing and releasing the electrons.

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This isn't a snack but i love their Everything bagels! they are really good especially if they are made for breakfast. But lately i haven't had the luck of finding them :(

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Hi! I would say that the most relaxing spot would be in YRL's first floor by the cafe. But if you like quiet places i would suggest Powell bottom floor in the individual chairs, or YRL's 4th floor supper quiet place, feels relaxing when your trying to get a lot of work done and when you're trying to...

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Hi! I would say that the most relaxing spot would be in YRL's first floor by the cafe. But if you like quiet places i would suggest Powell bottom floor in the individual chairs, or YRL's 4th floor supper quiet place, feels relaxing when your trying to get a lot of work done and when you're trying to...

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My favorite food i would have to say its salmon with white rice and some guacamole on the side. It used to be green Enchiladas but since i moved to my apartment they don't don't hit the same like they did back home. :((

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Hi i had the same question but I had a follow up question, what problems would you recommend to solve for practice in order to be prepared for the final?

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Hi Ernie! To answer your question in Example 4B.1, the gas is cooled in step 1 so the heat energy (q) of the reaction should technically change. However, the textbook does not include this calculation as we are dealing with an ideal gas, so delta U = 0. Therefore, delta U = q + w, so 0 = q + w, and...

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I've been hearing a lot of people say they do text book problems, but I wanted to ask if anyone has worked on the achieve problems and still done well on the previous exams?

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All of these responses were very helpful I wish I would've seen them earlier :(

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Hi everyone! I wanted to come on here and ask if anyone who works part time can give me some tips and/or advice on how to manage working and school at the same time(planning on working next quarter) , or how much time did you set for just chem class, and how have you been studying for the final sinc...

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When it comes to taking final exams I always make sure to do a quick review at least 1 hour before the exam and be confident in what I have studied during the week. Once I get to the place of where the exam is being taken I just take deep breaths, drink water and just try to relax as much as possible.

CHEMISTRY COMMUNITY

Search found 30 matches

Re: Change in Entropy (vap) & Order

Re: Phase Changes

Re: Stable products

Re: Stable products

Re: Anode vs Cathode

Re: Determining best oxidizing agents

Re: Redox in Acidic or Basic Solution

Re: Cannot oxidize with O2 and H2O

Re: Determining Order of Reducing/Oxidizing Power

Re: Numbering

Re: Sapling #15 Wk.9-10

Re: Spontaneous reactions

Re: Weak VS Strong Acids and Bases

Re: Silly Mistakes?

Re: How to Reduce Nervousness before getting results

Re: Recommended videos

Re: How has everybody been preparing for the final?

Re: Conditions at Equilibriums

Re: Shorthand Notation

Re: Cell Diagram and Ecell [ENDORSED]

Re: Trader Joe's Study Snacks

Re: Relaxing spots on campus

Re: Relaxing spots on campus

Re: Fave food

Re: Entropy and Enthalpy

Re: Cooling at Constant Volume until a certain pressure is obtained

Re: HOW TO STUDY FOR FINAL

Re: Useful? [ENDORSED]

Re: Students Who Have a Job

Re: Final Jitters