Search found 9 matches

by Naiomi Desai
Sun Mar 06, 2016 5:35 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Gauche and Anti
Replies: 1
Views: 305

Re: Gauche and Anti

I was confused as well and so I looked it up and found out that Gauche is any dihedral angle that is more than 0 degrees but less that 120 degrees and so based on this explanation, I would infer that anti- refers to any dihedral angle that is more than 120 degrees but less than 240 degrees. This exp...
by Naiomi Desai
Sat Feb 27, 2016 3:36 pm
Forum: *Alkynes
Topic: Parentheses confusion
Replies: 2
Views: 698

Parentheses confusion

I have come across a lot of practice problems where a hydrocarbon is placed in parentheses but the confusing part is deciding whether they are a substituent or part of a parent chain. I read in the chapter that a way to figure out which is which is to draw it out and see if each carbon has four bond...
by Naiomi Desai
Sun Feb 14, 2016 7:03 pm
Forum: General Rate Laws
Topic: Steady State and Pre Equilibrium Approach
Replies: 1
Views: 319

Re: Steady State and Pre Equilibrium Approach

In this class, particularly, we are only going to use the Pre-Equilibrium approach since, like Dr. Lavelle mentioned in class, the Steady State approach is very mathematically involving. This being said, it does not matter for most of the calculations which method you use as the outcome should come ...
by Naiomi Desai
Sun Feb 07, 2016 5:58 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: logQ vs lnQ
Replies: 1
Views: 857

logQ vs lnQ

While I was doing the practice Midterms from the past, I came across an issue multiple times where I used the lnQ/lnK formula and got a specific answer that differed from that of the course reader. In the Course Reader, they used logQ/logK that resulted in my answer being slightly different. Does th...
by Naiomi Desai
Sun Jan 24, 2016 11:25 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Reversible vs Irreversible Reactions
Replies: 1
Views: 281

Reversible vs Irreversible Reactions

So, I understand the difference between a reversible and an irreversible reaction but I get confused every time a textbook problem mentions one or the other. I get stuck on the quantitative aspect of it: which equation do I use for which. I feel as if most times I understand but then I still get con...
by Naiomi Desai
Sun Jan 17, 2016 9:18 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: State functions
Replies: 2
Views: 378

Re: State functions

This definition is a different way of stating the basic fact that state functions are properties that allow us to take the final, or the output, and subtract it from the initial, or the input, to get an answer that shows its difference. What the definition means is that it does not matter how the ou...
by Naiomi Desai
Sun Jan 17, 2016 9:05 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7834
Views: 1088656

Re: Chemistry Jokes

- Wanna hear a joke about potassium?

"K"

- Why did the White Bear dissolve in water?

Because it was polar! :)

- After this joke, I expect a chemistry major to say, "Hey girl, Iodate you!"

- Do I have any Sodium Hypobromite for the lab, you ask?

NaHBrO
by Naiomi Desai
Mon Nov 23, 2015 10:35 am
Forum: Empirical & Molecular Formulas
Topic: Video for #2 on Midterm (Empirical and Molecular formula)
Replies: 1
Views: 362

Video for #2 on Midterm (Empirical and Molecular formula)

A collaboration with Stevie Wisz to solve problem #2 on the Midterm of 2015.
by Naiomi Desai
Wed Nov 18, 2015 10:59 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Oxygen coordination
Replies: 1
Views: 288

Re: Oxygen coordination

I believe you would use the oxygen with 3 lone pairs because the oxygen with 2 lone pairs would have a formal charge of 0, making it most stable at that stage. Because of that, it won't bind with any other atoms. I hope this helped.

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