CHEMISTRY COMMUNITY

Jenny_Luu_2A

If the problem asks for the mot stable conformation, then you want to put the biggest substituents of the cyclohexane on the equatorial position.

Jenny_Luu_2A

Two atoms are walking down the street.
Says one atom to the other, "Hey I think I lost an electron!"
The other says, "Are you sure?"
"Yes, I'm positive!"

Jenny_Luu_2A

Q: What animal is made up of calcium, nickel and neon?
A: A CaNiNe

Jenny_Luu_2A

Q: What do you do with a sick chemist?
A: If you can't helium, and you can't curium, then you might as well barium.

Jenny_Luu_2A

Did you know that you can cool yourself to -273.15˚C and still be 0k?

Jenny_Luu_2A

Q: How did the chemist survive the famine?
A: By subsisting on titrations.

Jenny_Luu_2A

Q: What happened to the man who was stopped for having sodium chloride and a nine-volt in his car?
A: He was booked for a salt and battery.

Jenny_Luu_2A

If it doesn't cancel out then it is okay.

Jenny_Luu_2A

It would still be a pentane, any double bonds that are part of a functional group are only considered as part of that functional group. If you had a double bond elsewhere, that is when you change the name of the alkane to an alkene.

Jenny_Luu_2A

How is the equation Ea=delta H of activation + RT derived?

Jenny_Luu_2A

You would be able to tell that the reaction is exothermic precisely because the reactants have a higher energy level than the products do. In an exothermic reaction, energy is released when you form bonds. And when bonds are formed to make products, they are going to be more stable than the reactant...

Jenny_Luu_2A

I think it is the delta G/H, etc of the transition state.

Jenny_Luu_2A

In this electrophilic addition example, I think the order does matter, because there are two transition states that need to be drawn for the two steps of the reaction. The nucleophile is first the hydrocarbon, so a pair of electrons goes toward the partially positive hydrogen in the electrophile HBr...

Jenny_Luu_2A

Q: What happened to the man who was stopped for having sodium chloride and a nine-volt in his car?
A: He was booked for a salt and battery.

Jenny_Luu_2A

A small piece of sodium that lived in a test tube fell in love with a Bunsen burner. "Oh Bunsen, my flame," the sodium pined. "I melt whenever I see you," The Bunsen burner replied, "It's just a phase you're going through."

Jenny_Luu_2A

thank you!

Jenny_Luu_2A

Can someone explain the equipartition theorem and its applications?

Jenny_Luu_2A

When the system is compressed, the formula has a negative sign and when the system is expanded it has a positive sign.

Jenny_Luu_2A

What about enthalpy being a state property makes it so that the reverse and forward processes for enthalpy changes are equal but with opposite signs?

Jenny_Luu_2A

In using this method, when a bond is formed do we write it as negative energy, and when a bond is broken, we write it as positive energy to add them up?

CHEMISTRY COMMUNITY

Search found 20 matches

Re: Bond Angles of equatorials and axials

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: writing reaction rate laws [ENDORSED]

Re: Alkenes and Functional Groups

equation derivation

Re: Drawing/Labeling reaction profile

Re: the line with two crosses

Re: HBr example from lecture

Re: Post All Chemistry Jokes Here

Re: Chemistry Jokes

Re: Equipartition Theorem

Equipartition Theorem

Re: Work Integral Negative? [ENDORSED]

Re: Enthalpy of Phase Changes

Re: Bond Enthalpies