Search found 14 matches

by Hyun Young Lee 2H
Mon Mar 20, 2017 5:28 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Most stable confirmation? [ENDORSED]
Replies: 4
Views: 1484

Re: Most stable confirmation? [ENDORSED]

is the a,a or e,e always definitely cis or is it determined by looking at the shape of the structure ?
by Hyun Young Lee 2H
Sat Mar 18, 2017 3:27 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020107

Re: Post All Chemistry Jokes Here

Diene. ha.
by Hyun Young Lee 2H
Sat Mar 18, 2017 3:25 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020107

Re: Post All Chemistry Jokes Here

Q.Why did Carbon marry Hydrogen?

A. They bonded well from the minute they met.
by Hyun Young Lee 2H
Mon Mar 13, 2017 6:53 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: bond angles
Replies: 2
Views: 278

Re: bond angles

Do i need to know the bond angles of alkenes and alkynes
by Hyun Young Lee 2H
Mon Feb 20, 2017 5:37 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020107

Re: Post All Chemistry Jokes Here

Q: What do you call a tooth in a glass of water?

A: A one molar solution.
by Hyun Young Lee 2H
Mon Feb 20, 2017 5:34 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020107

Re: Post All Chemistry Jokes Here

Q: What do you call Iron blowing in the wind?

A: Fe breeze.
by Hyun Young Lee 2H
Mon Feb 20, 2017 5:33 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020107

Re: Post All Chemistry Jokes Here

Q:Why did the polar bear dissolve in water?

A:Because Polar compounds dissolved in water.
by Hyun Young Lee 2H
Sun Feb 05, 2017 9:09 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Sensitivity of Cell Potential
Replies: 1
Views: 182

Re: Sensitivity of Cell Potential

The cell constant of a conductivity cell changes with ?

a)with change of electrolyte

b)with change of concentration of electrolyte

c)changes with temperature of electrolyte

d)remains constant for a cell
by Hyun Young Lee 2H
Sun Jan 29, 2017 1:21 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020107

Re: Post All Chemistry Jokes Here

Chem joke in time for Valentine.


Q: Are you a compound of barium and beryllium?
A: Cause you are a total BaBe.

Use it for someone special!
by Hyun Young Lee 2H
Sun Jan 15, 2017 10:46 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Heat Capacity
Replies: 3
Views: 304

Re: Heat Capacity

Heat capacity is the amount of heat needed to change the temperature of an object by 1 degree Celsius. The difference with specific heat is the heat needed to change 1 GRAM of object by 1 degree Celsius.
by Hyun Young Lee 2H
Fri Nov 18, 2016 10:17 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020107

Re: Post All Chemistry Jokes Here

This cracked me up!
Here's the joke.


Q: What is "HIJKLMNO"?
A: H2O.
by Hyun Young Lee 2H
Tue Nov 01, 2016 9:19 pm
Forum: Properties of Light
Topic: from the midterm booklet
Replies: 1
Views: 318

from the midterm booklet

The energy required to break a C-C bond in a molecule is 348 kj*mol^-1.
will visible light be able to break this bond? If yes, what is the color of that light?
If not, what type of electromagnetic radiation will be suitable?

Why is Avogadro's number involved in the process of solution?
by Hyun Young Lee 2H
Sat Oct 22, 2016 10:01 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Textbook question 3.5
Replies: 1
Views: 292

Textbook question 3.5

3.5 Give the ground-state electron confi guration expected for each of the following ions: (a) Cu+

why is the answer [Ar] 3d10? when it has 28 electrons?
by Hyun Young Lee 2H
Fri Sep 30, 2016 8:19 am
Forum: Properties of Electrons
Topic: Kinetic Energy of Electrons [ENDORSED]
Replies: 4
Views: 1860

Re: Kinetic Energy of Electrons [ENDORSED]

when doing photoelectric experiments, it is important to keep in mind the kinetic E- formula.

Photon- Energy moved = E(k)
so whatever the excess energy is, will be kinetic energy ( 1/2 mv2 ) of a single atom
i hope this helps!

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