Search found 18 matches

by Reyna Alonso 1E
Sat Dec 09, 2017 7:32 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Assumption for Subtracting X in Ka or Kb calculation [ENDORSED]
Replies: 3
Views: 350

Re: Assumption for Subtracting X in Ka or Kb calculation [ENDORSED]

since the x value will be so small then it will most likely not change the concentration of the reactants such as Professor Lavelle mentioned in class where if you have 1 million dollars and take away a dollar you still pretty much have 1 million dollars.
by Reyna Alonso 1E
Sat Dec 09, 2017 7:14 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Post Assessment 2 #24
Replies: 2
Views: 1962

Re: Post Assessment 2 #24

bar is the atmospheric pressure at sea level so it can also be translated as as 100 kilopascals which is about 1 atm.
by Reyna Alonso 1E
Sun Dec 03, 2017 10:45 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: pH and pOH
Replies: 10
Views: 434

Re: pH and pOH

The pH measures the [H+] while pOH measures [OH-]. You start of by taking the -log of one of the concentration either [H+] or [OH-] and then to solve for the other concentration then use the following equation; pH+pOH=14.
by Reyna Alonso 1E
Sun Dec 03, 2017 10:37 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7439
Views: 989438

Re: Post All Chemistry Jokes Here

"Making bad chemistry jokes because all the good ones Argon"
by Reyna Alonso 1E
Wed Nov 22, 2017 7:27 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bent vs. Angular
Replies: 5
Views: 323

Re: Bent vs. Angular

Angular and bent mean the same thing.
by Reyna Alonso 1E
Wed Nov 22, 2017 7:25 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Calculating Equilibrium Composition [ENDORSED]
Replies: 2
Views: 133

Re: Calculating Equilibrium Composition [ENDORSED]

I think that at this point we won't be given two negative numbers so I would just focus on the other possibilities.
by Reyna Alonso 1E
Sat Nov 18, 2017 9:33 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7439
Views: 989438

Re: Post All Chemistry Jokes Here

What kind of dogs do chemists have?
Laboratory Retrievers
by Reyna Alonso 1E
Sat Nov 18, 2017 9:27 pm
Forum: Biological Examples
Topic: Other Biological Examples
Replies: 5
Views: 392

Re: Other Biological Examples

These examples seemed interesting as well.
https://nsepulvedachemhonors.weebly.com ... etals.html
by Reyna Alonso 1E
Sun Nov 12, 2017 5:42 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Shape Memorization [ENDORSED]
Replies: 7
Views: 395

Re: Shape Memorization [ENDORSED]

I would say that looking at visual examples will be the most helpful way to memorize the shapes.
by Reyna Alonso 1E
Sun Nov 12, 2017 5:39 pm
Forum: DeBroglie Equation
Topic: De Broglie Equation [ENDORSED]
Replies: 4
Views: 338

Re: De Broglie Equation [ENDORSED]

The De Broglie equation is used to find the wavelength but you can find the energy of a photon by rearranging other equations.
by Reyna Alonso 1E
Sun Nov 05, 2017 4:14 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Which one do I draw?
Replies: 5
Views: 321

Re: Which one do I draw?

I agree but I feel that we are going to mostly be asked to draw the lewis structure and just say what is the molecular shape like in the examples we did on Friday.
by Reyna Alonso 1E
Sun Nov 05, 2017 1:24 pm
Forum: Electronegativity
Topic: Comparing Electronegativity of Elements
Replies: 5
Views: 485

Re: Comparing Electronegativity of Elements

There are a few exceptions to electronegativity, "Important exceptions of the above rules include the noble gases, lanthanides, and actinides. The noble gases possess a complete valence shell and do not usually attract electrons. The lanthanides and actinides possess more complicated chemistry ...
by Reyna Alonso 1E
Sun Oct 22, 2017 11:12 pm
Forum: Photoelectric Effect
Topic: Quantized Energy Level
Replies: 5
Views: 348

Re: Quantized Energy Level

I just wanted to add that Quantum also means "how much?'
by Reyna Alonso 1E
Sun Oct 22, 2017 11:03 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7439
Views: 989438

Re: Post All Chemistry Jokes Here

What did one charged atom say to the other? I've got my ion you.
by Reyna Alonso 1E
Sun Oct 15, 2017 6:39 pm
Forum: Photoelectric Effect
Topic: Balmer vs Lyman [ENDORSED]
Replies: 5
Views: 295

Re: Balmer vs Lyman [ENDORSED]

The equation sheet that Dr. Lavelle showed us in class in Friday is posted under Constants and Equations which shows all the ones that will be given to us.
by Reyna Alonso 1E
Sun Oct 15, 2017 6:34 pm
Forum: Quantum Numbers and The H-Atom
Topic: Quantized Energy
Replies: 5
Views: 418

Re: Quantized Energy

Quantized energy can only have certain values and the n energy levels are the energy gaps which both can relate to show, "every atom has certain energy levels, which are strongly related with the mass of the atom. ... When they jump from a higher energy state to a lower one, the energy differen...
by Reyna Alonso 1E
Sun Oct 08, 2017 8:15 pm
Forum: SI Units, Unit Conversions
Topic: SI units [ENDORSED]
Replies: 6
Views: 378

Re: SI units [ENDORSED]

If you are talking about SI Fundamental Units it will be Mass(kg), length(m), and time(s) but there is also SI Derived Units which would be volume (m^3) and density.
by Reyna Alonso 1E
Sun Oct 08, 2017 8:00 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7439
Views: 989438

Re: Post All Chemistry Jokes Here

Q: What do you call a clown who's in jail?
A: A silicon.

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