Search found 18 matches

by Noor_Chahal_3G
Wed Mar 15, 2017 2:36 am
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 214
Views: 101889

Re: Saying Thank You to Dr. Lavelle

From 14A to 14B, thanks for everything
by Noor_Chahal_3G
Mon Mar 13, 2017 5:26 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

What is the chemical formula for "Banana"?
BaNa2
by Noor_Chahal_3G
Sun Mar 05, 2017 10:30 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

What was NaCl charged with when he was arrested?
A salt
by Noor_Chahal_3G
Sun Mar 05, 2017 10:27 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

A photon checks into a hotel and is asked if he needs any help with his luggage. He says, "No, I'm traveling light."
by Noor_Chahal_3G
Sun Mar 05, 2017 10:15 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

Q: Why did the acid go to the gym?
A: To become a buffer solution.
by Noor_Chahal_3G
Sun Mar 05, 2017 10:11 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

What do you call iron blowing in the wind?

Fe-breeze
by Noor_Chahal_3G
Sun Mar 05, 2017 10:08 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

Q: If H20 is water, what is H204?
A: Drinking, bathing, washing, swimming, etc.
by Noor_Chahal_3G
Fri Feb 10, 2017 1:13 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Question on q=nC(change in)T
Replies: 2
Views: 473

Re: Question on q=nC(change in)T

In this case, the Delta T would be the same regardless of whether it is Kelvin or Celsius. For example, going from 0°C to 25°C is equivalent to going from 273 Kelvin to 298 Kelvin. In both cases, (25°C - 0°C) and (298 K - 273 K), The delta T is still 25. In theory, the Delta T units are supposed to ...
by Noor_Chahal_3G
Mon Jan 23, 2017 8:50 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

What animal is made up of calcium, nickel and neon?
A CaNiNe
by Noor_Chahal_3G
Wed Jan 18, 2017 8:55 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

What do you get when 6.02x1023 mosquitoes bite you?

Molearia
by Noor_Chahal_3G
Wed Jan 18, 2017 8:53 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7666
Views: 1036507

Re: Post All Chemistry Jokes Here

What kind of fish is made up of two sodium atoms?

2Na
by Noor_Chahal_3G
Fri Dec 02, 2016 1:51 pm
Forum: General Science Questions
Topic: Response of Equilibria to change
Replies: 1
Views: 426

Re: Response of Equilibria to change

If you increase the pressure, the equilibrium will shift to the right, yielding more ammonia. This is because increasing pressure, decreases the volume, and thus favors the formation of the least gas molecules. There are 4 gas molecules on the left and 2 gas molecules on the right. Therefore, it wil...
by Noor_Chahal_3G
Mon Nov 14, 2016 8:14 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Upcoming Quiz #3
Replies: 7
Views: 665

Re: Upcoming Quiz #3

Yes, the 3rd quiz will cover molecular orbital theory, coordination compounds, and equilibrium up to p. 135
by Noor_Chahal_3G
Fri Oct 28, 2016 1:34 am
Forum: Dipole Moments
Topic: Dipole Moment in a Lewis Structure
Replies: 5
Views: 1193

Re: Dipole Moment in a Lewis Structure

The delta negative pole is the atom that is higher in electronegativity. The delta positive pole is the atom that is lower in electronegativity. For example in H 2 O, oxygen is more electronegative than hydrogen, so oxygen would be delta negative. The 2 hydrogens have a lower electronegativity, so t...
by Noor_Chahal_3G
Fri Oct 28, 2016 1:29 am
Forum: Hybridization
Topic: Question About Methane Structure and Carbon Bonding
Replies: 2
Views: 627

Re: Question About Methane Structure and Carbon Bonding

When it says Carbon has 2 unpaired electrons, is referring to the fact that Carbon has an electron configuration of [He]2s 2 2p 2 . Therefore Carbon has 2 unpaired electrons in the p sublevel. To be able to form 4 bonds, Carbon forms a mixture of its valence electron orbitals, meaning the s and p or...
by Noor_Chahal_3G
Thu Oct 13, 2016 9:15 pm
Forum: Trends in The Periodic Table
Topic: Ionization
Replies: 1
Views: 309

Re: Ionization

Just to recap: Ionization energy is the energy required to remove an electron from an atom in the gaseous state. The first ionization energy is based on a neutral atom. After taking away the first electron, the atom becomes a positively charged ion. This means that the positively charged nucleus pul...
by Noor_Chahal_3G
Thu Oct 06, 2016 7:12 pm
Forum: Properties of Light
Topic: Chem Workbook, Quiz 1 Preparation, Problem #7 [ENDORSED]
Replies: 2
Views: 583

Re: Chem Workbook, Quiz 1 Preparation, Problem #7 [ENDORSED]

For the answer, you have to use the equation E=λv, because they give you the wavelength, you must manipulate the equation to v=c/λ They give you the wavelength in nanometers, so you have to convert 6.2x10^2 nm to meters. This way it can cancel out with the units for c which are m/s. After the calcul...
by Noor_Chahal_3G
Tue Sep 27, 2016 12:14 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Fundamentals E.21: Amount in moles vs Number of molecules vs Formula units
Replies: 4
Views: 1508

Re: Fundamentals E.21: Amount in moles vs Number of molecules vs Formula units

In terms of calculation, you would treat formula units and molecules in the same way. If you're trying to find how many formula units/molecules are present, you would multiply the number of moles of the substance by 6.022x10 23 in both cases. To get more technical: a molecule refers to a group of 2 ...

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