CHEMISTRY COMMUNITY

Deivy Gonzalez 3H

KClO3 K is in group 1 of the periodic table so ON = +1 O always has an ON = -2 except in peroxides when it is -1 Cl can have variable ONs so we must figure it out. If K is +1 and O is -2, and there are 3 oxygens, we have +1 and -6. That's a net of -5. So Cl must be +5 in order for KClO3 to be neutra...

Deivy Gonzalez 3H

Dr. Lavelle said in a lecture that in 14b we should not be worried about A in the Arrhenius Equation being k=Ae^−Ea/RT. In case it does show up, we can assume that A=1. For question number 20, we do indeed cancel the A out though.

Deivy Gonzalez 3H

Looking at the Ernest question ( E= E(knot) - (RT/nF)lnQ. If the redox reaction is doubled, the n and ln(Q) are also doubled because of the fact that Q becomes squared. This is because we have to understand that from doubling the redox reaction, Q is no longer equal to [P]/ [R] but, equal to [P]^2/ ...

Deivy Gonzalez 3H

Using the Ernest question ( E= E(knot) - (RT/nF)lnQ. E(knot) is the standard potential for the cell and is considered a given or calculated constant in the equation, therefore, not changing.

Deivy Gonzalez 3H

Not entirely, an isothermal process is when the temperature of the whole system does not change throughout the reaction. An example of this could be a ice cube melting in a system with a constant temperature of 0 degrees.

Deivy Gonzalez 3H

Appreciate it. I forgot how to calculate the percentage until I saw this. Thank you

Deivy Gonzalez 3H

I was accidently putting the wrong E for the half-reduction equation for Mg. Thank you for the help.

Deivy Gonzalez 3H

Thank you for pointing out the formula. It made the whole problem easier, thank you.

Deivy Gonzalez 3H

I was having trouble with the units of parts like Faraday and E. This cleared things up, thank you.

Deivy Gonzalez 3H

I need to always check that I have my (-) because I end up not having it. Thank you for the help.

Deivy Gonzalez 3H

I'm glad you guys help in the post. I could not figure out my error until I realized I accidently forgot to put a coefficient for H20. Thank you.

Deivy Gonzalez 3H

This question was giving me issues. Thank you for the help.

Deivy Gonzalez 3H

Thank you for the beginning insight.

Deivy Gonzalez 3H

I thought I was using the same equation. I must have been plugging in something incorrectly but after seeing this I was able to get the correct answer. Thank you.

Deivy Gonzalez 3H

The different conversion of units I had to do was a bit confusing but overall thank you for the steps in order to arrive at the answers.

Deivy Gonzalez 3H

I could not figure out why my answer was coming out wrong, that is because I was not converting the kJ to Joules. Thank you for helping me get the right answer.

Deivy Gonzalez 3H

I did not realize that this question required a three part process, thank you for the help.

Deivy Gonzalez 3H

I did not know you had to change the R from 8.314 to 0.08314. That was the part of the calculations I kept getting wrong. Thank you for the insight.

Deivy Gonzalez 3H

I was not sure why they gave us those measurements such as 100 mL. I was trying to incorporate them in some type of equations. But thank you for saying to just ignore them.

Deivy Gonzalez 3H

I was struggling with this problem. Thank you for the help.

Deivy Gonzalez 3H

This problem had me confused on how to start, thank you for clearly explaining.

Deivy Gonzalez 3H

Thank you for the steps into this problem. I was also a bit confused but this cleared it all up.

Deivy Gonzalez 3H

Will do, thank you for the insight.

Deivy Gonzalez 3H

You just have to go to "quick links" and then "your post."

Deivy Gonzalez 3H

Thank you very much, I appreciate the help. I always thought that you had to convert the grams to moles. I finally know that you can interchange the equation.

Deivy Gonzalez 3H

How can you tell when a reaction is consider exothermic or endothermic without being given the enthalpy? For instance, if a problem gives you the a reaction of HA-> H + A, what can you assume about the reaction.

Deivy Gonzalez 3H

I appreciate all the help, and thanks for answering my question about the principle.

Deivy Gonzalez 3H

I think downloading and opting out of the book material in your myucla is the best way to go. It's free and you can read it offline.

Deivy Gonzalez 3H

I was stuck for the longest on how to begin but thankfully you had a step by step process. I really appreciate it.

Deivy Gonzalez 3H

I'm a bit lost about these "step-up" sessions as well. I was wondering if it was just review for future exams for something?

Deivy Gonzalez 3H

Thank you for the practice.

Deivy Gonzalez 3H

Appreciate it.

Deivy Gonzalez 3H

Le Chatelier's Principle basically determines the -x and x within the I.C.E formula?

Deivy Gonzalez 3H

I would just go on the syllabus and figure out what are the main topics for the class. Look them up and watch different review videos on those concepts.

Deivy Gonzalez 3H

It calms my nervous knowing that you, someone that has done and achieved so much is still going through the process of deciding what specialty you want to do. Like you said, I'm sure once you get more experience, you will eventually find that specialty.

Deivy Gonzalez 3H

Knowing I've done the most in order to prepare for finals helps me relax during the test. It gives me peace of mind after the test as well.

Deivy Gonzalez 3H

Appreciate the insight.

CHEMISTRY COMMUNITY

Search found 37 matches

Re: electrochemistry HW

Re: ACHIEVE q 20

Re: n and lnQ doubled in redox reaction

Re: Sapling #16 Wk7/8

Re: Isothermal

Re: Practice question for dissociation

Re: Sapling Week 7/8 Question 9

Re: Achieve #17 (Week 8)

Re: sapling week 7/8 #12

Re: Sapling #8 (Week 7/8)

Re: Sapling week 7/8 #18

Re: Sapling #4 Weeks 7/8

Re: Achieve Week 7 and 8 #7

Re: Sapling Week 5/6 #19

Re: Sapling Week 5/6 #7

Re: Sapling week 5/6 question 18

Re: Sapling #8

Re: Sapling Week 5/6 HW #5

Re: Homework 8.25

Re: Sapling #4 Question 10 - Temperature

Re: Sapling HW Week 3/4 #15

Re: 8.45 Preparation of Carbon Disulfide

Re: Midterm 2

Re: How to find my posts

Re: q=mCΔT vs q=nCΔT

Re: Enthalpy & Exothermic Reactions

Re: Acids and Bases

Re: Textbook Inquiry [ENDORSED]

Re: Sapling Week 2 #5

Re: What are step-up sessions?

Re: Belle’s Acid Base Review Session Topic is endorsed

Re: Registering/Creating Your Chemistry Community Account

Re: Acids and Bases

Re: Rusty on High School Chem [ENDORSED]

Re: Advice from a Medical Student - Part II [ENDORSED]

Re: Final Jitters

Re: Advice from a Medical Student [ENDORSED]