CHEMISTRY COMMUNITY

SaniShabgahi3N

Sorry I meant 7B on the 2016 final

SaniShabgahi3N

Why does the second organic molecule have an E in it? 8 know E means that the atoms with the highest atomic number are opposite of each other but which atoms are being compared in the molecule?

SaniShabgahi3N

I got the name correctly; however, I don't understand why there is a E. I know E means that the groups are across from each other. But what groups are identical and across from each other in that alkene?

SaniShabgahi3N

When it asks to "draw the structure," are we expected to draw the line structure or Lewis structure?

SaniShabgahi3N

How can you tell that the three lines are an alkyne and that the molecular formula is C3H4? I don't physically see this

SaniShabgahi3N

Does nucleophiloc strength rely on polarizability? And if yes, does polarizability increase down a group?

SaniShabgahi3N

Should we go up to question 55 in order to prepare for quiz two?

SaniShabgahi3N

Given these following reduction half reactions:
I2(S) + 2e- -> 2I-(aq) E• = 0.54v
Cl2(g) + 2e- -> 2Cl-(aq) E• = 1.36
Calculate E•, deltaG• and k at 25•C
In order to determine the K, the solution says to use DeltaG•= -RTlnK

Why can't we use E• = RT/nF lnK? I used that and got a different answer

SaniShabgahi3N

What's the difference between a galvanic cell and a electrolytic cell?

SaniShabgahi3N

If SO2F2 adopts a positionally disordered arrangement in its crystal form, what might its residual entropy be?

SaniShabgahi3N

Use the bond enthalpies in tables 8.6 and 8.7 to estimate the reaction enthalpy for CH3CHCH2(g) +H2O(g) --> CH3CH(OH)CH3(g). I know for the bonds broken, it's one double bond between two carbon atoms and 1 bond between O and H. However, for the bonds formed, I got one C-H bond, one C double bonded t...

SaniShabgahi3N

Why is heat capacity an extensive property, while the specific heat capacity and molar heat capacity are intensive properties?

SaniShabgahi3N

If a king farts, is it a noble gas?

SaniShabgahi3N

Do equilibrium constants (KC) exclude liquids and solids? And if yes, is it the same as the Kp (thinking back to the most recent quiz we took)?

SaniShabgahi3N

What's the difference between VSEPR and the Molecular Orbital Theory?

SaniShabgahi3N

Here are some chemistry pick up lines so you are prepared just in case an attractive person sits next to you during the chemistry lecture. Do you have 11 protons? Cause you're sodium fine. Are you made of copper and tellurium? Because you're cute. You must be a compound of beryllium and barium...bec...

SaniShabgahi3N

Predict the bond angles at the central atom of the following molecules and ions. a) O3

SaniShabgahi3N

Give the ground-state electron configuration and number of unpaired electrons expected for each of the following ions. e) Ni2+
I just want someone to explain to me again why it's [Ar] 3d8 instead of [Ar] 3d6 4s2

SaniShabgahi3N

A bowling ball of mass 8.00 kg is rolled down a bowling alley lane at 5.00 +/- 5.0 ms^-1. What is the minimum uncertainty in its position?

SaniShabgahi3N

If an electron (mass 9.11 x 10-31 kg) has an associated wavelength of 7.28 x 10-9 m, what is its speed? Is your answer reasonable, why?
I continue getting the answer 1.00x10^4 and don't understand what I did wrong. Also, how would I know if the answer is reasonable compared to the speed of light.

SaniShabgahi3N

Can someone please explain the rules of significant figures for logarithms?

CHEMISTRY COMMUNITY

Search found 21 matches

Re: #7B

#7B

1.26

Which structure?

1.5 (c)

Nucleophilic strength

Book problems for quiz 2?

Midterm 2015 #6

Galvanic cell vs electrolytic cell [ENDORSED]

9.25

#75

Extensive property vs Intensive property [ENDORSED]

Re: Post All Chemistry Jokes Here

Equilibrium constant help

Difference between VSEPR and MOT

Re: Post All Chemistry Jokes Here

#17

textbook problem #19e

Chapter 1 question 45

Post Module Question [ENDORSED]

Significant figures for Logarithms