Search found 17 matches

by Rachel Hunsucker 3L
Thu Mar 03, 2016 4:42 pm
Forum: *Cycloalkenes
Topic: SELF TEST 1.11A b)
Replies: 2
Views: 416

Re: SELF TEST 1.11A b)

When numbering double bonds, you need to number both carbons in the double bond consecutively. Therefore, carbon atoms 1 and 2 in the ring will be two of the carbons involved in one of the double bonds (for this problem specifically, you would want to start with the carbon in the double bond with th...
by Rachel Hunsucker 3L
Tue Mar 01, 2016 1:07 pm
Forum: *Electrophiles
Topic: AlCl3
Replies: 2
Views: 431

Re: AlCl3

AlCl3 is an electrophile particularly because the Al is electron deficient and needs more electrons.
by Rachel Hunsucker 3L
Tue Mar 01, 2016 10:51 am
Forum: *Electrophiles
Topic: AlCl3 Friedal Crafts Alkylation
Replies: 3
Views: 895

Re: AlCl3 Friedal Crafts Alkylation

You're not wrong, the arrow looks as if the single bond is the area of electron abundance. However, the Cl is the nucleophile in the Friedal Crafts Alkylation and is attacking the electron deficient Al in AlCl3.
by Rachel Hunsucker 3L
Tue Mar 01, 2016 10:43 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7750
Views: 1066445

Re: Chemistry Jokes

Have you heard about the chemist who read a book about helium?


They couldn’t put it down
by Rachel Hunsucker 3L
Thu Feb 18, 2016 9:05 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Low Activation Energy
Replies: 1
Views: 287

Low Activation Energy

Can someone explain why temperature doesn't change the rate very much if a reaction has a low activation energy?
by Rachel Hunsucker 3L
Fri Feb 05, 2016 10:43 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Cell potential
Replies: 1
Views: 368

Re: Cell potential

Because if you add two of the same reaction, you won't get double the cell potential, which violates the definition of a state function.
by Rachel Hunsucker 3L
Fri Feb 05, 2016 8:16 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7750
Views: 1066445

Re: Chemistry Jokes

Q: What do you do with a dead chemist?



A: Barium
by Rachel Hunsucker 3L
Fri Feb 05, 2016 8:02 pm
Forum: Balancing Redox Reactions
Topic: Balancing Redox reactions
Replies: 3
Views: 461

Balancing Redox reactions

When balancing the half reactions, why do you not double the cell potential when you multiply an equation by 2? I know we aren't supposed to, but can someone explain why we don't?
by Rachel Hunsucker 3L
Thu Jan 14, 2016 9:07 pm
Forum: Phase Changes & Related Calculations
Topic: Enthalpy
Replies: 3
Views: 401

Enthalpy

Under what circumstances does q=△H?
by Rachel Hunsucker 3L
Fri Jan 08, 2016 3:23 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: 8.10 units question
Replies: 3
Views: 396

Re: 8.10 units question

You want to convert it to Joules!
by Rachel Hunsucker 3L
Sun Nov 29, 2015 8:28 pm
Forum: Lewis Acids & Bases
Topic: Acid & Bases
Replies: 2
Views: 506

Acid & Bases

Is it possible for an acid/base to be strong in one reaction but weak in another?
by Rachel Hunsucker 3L
Wed Nov 18, 2015 11:33 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 2013 Quiz 3 Preparation #10
Replies: 10
Views: 1019

Re: 2013 Quiz 3 Preparation #10

So we don't need to convert from bars to a different unit? If so to what unit?
by Rachel Hunsucker 3L
Wed Nov 11, 2015 3:59 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number & Ligands
Replies: 1
Views: 247

Re: Coordination Number & Ligands

Yes because ligands represent ions binding to the central atom which forms a coordination complex.
by Rachel Hunsucker 3L
Sun Nov 01, 2015 6:18 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Bond Order
Replies: 4
Views: 511

Re: Bond Order

304579397 wrote:What does a bond order of 0 signify ?

A bond order of 0 means that the molecule is unstable and does not exist.
by Rachel Hunsucker 3L
Sun Oct 25, 2015 8:54 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Lewis structures
Replies: 11
Views: 1426

Re: Lewis structures

The best way to go about that would be to add another bond such as a double bond or a triple bond and take away a lone pair or vice-versa.
by Rachel Hunsucker 3L
Sun Oct 18, 2015 8:34 pm
Forum: Ionic & Covalent Bonds
Topic: Lewis Acid-Base RXN
Replies: 1
Views: 295

Lewis Acid-Base RXN

Are Boron and Aluminum the only elements involved in Lewis Acid-Base reactions?
by Rachel Hunsucker 3L
Sat Oct 03, 2015 9:56 pm
Forum: Significant Figures
Topic: How much of the atomic mass of an element should be used?
Replies: 5
Views: 788

Re: How much of the atomic mass of an element should be used

Since you are dividing 40.9 g, which has three sig figs, by the mass of Carbon, you would use 12.01 rather than 12.011 because 12.01 also has three sig figs.

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