CHEMISTRY COMMUNITY

Wesley_Rugen_1E

It doesn't have anything to do with the differentiation of the rate constant. It is just the reverse rate - we can use it to find K.

Wesley_Rugen_1E

Organic chemistry is really difficult. Those who study it have alkynes of trouble.

Wesley_Rugen_1E

How do you know which step of an organic reaction will occur first (nucleophile or electrophile)? Or do these steps occur simultaneously?

Wesley_Rugen_1E

Why is BF3 considered an electrophile?

Wesley_Rugen_1E

Since we are studying kinetics:

In a sports relay race, a chemical kinetics specialist runs slowly, and his group loses the race.

When the chemical kinetics specialist is asked why he ran slowly, his reply was "I always wanted to be the significant rate determining step."

Wesley_Rugen_1E

Why did the acid go to the gym? To get buffer. Two atoms were walking down the street one day, when one of them exclaimed. "Oh no - I've lost an electron!" "Are you sure?" the other one asked. "Yes," replied the first one, "I'm positive." How do you pick out a...

Wesley_Rugen_1E

Can someone explain why standard reduction potential is an intensive property, versus an extensive property? I'm still confused as to why standard reduction potential is considered a intensive property.

Wesley_Rugen_1E

In the textbook, the entropy change when P is not constant is given by:

delta S = nRln(P1/P2)

Why would the initial pressure be on top, rather than the final pressure?

Wesley_Rugen_1E

An isothermal reaction just means that during the reaction, T (temperature) stays the same, or is constant. That means delta T (change in T) equals zero. R is the gas constant, which Dr. Lavelle gives us on the formula sheet, so you don't have to memorize the values, but be aware that depending on t...

Wesley_Rugen_1E

The question asks to determine the reaction enthalpy for the hydrogenation of ethyne to ethane, C2H2(g) + 2H2(g) -> C2H6(g). What happens when we hydrogenate something? What do we add to the equation?

Wesley_Rugen_1E

In the book, a thinking point asks how to achieve maximum work from an electric battery. I'm having trouble conceptually solving this question. Would we increase the external pressure?

Wesley_Rugen_1E

The bond strength is a large determining factor for acidity. The bond between HF is very strong, because fluorine does not want to let go of hydrogen.

Wesley_Rugen_1E

Can you classify acids as strong or weak from their formulas alone?

Wesley_Rugen_1E

Why can't hydrogen ions exist by themselves?

Wesley_Rugen_1E

When asked to determine the pH, is it ever possible to get a negative pH?

Wesley_Rugen_1E

If we have a heteronuclear molecule with one atom with less than 8 electrons, and the other with more than 8 electrons, which MO diagram will we use?

Wesley_Rugen_1E

I read the book and find it helps a lot when understanding difficult topics. They can use different symbols which can be confusing, but overall it helps me out a lot. Also doing the self-tests when going through the reading give me confidence when learning the content.

Wesley_Rugen_1E

What is the chemical formula for seawater?

CH2O

Wesley_Rugen_1E

A photon checks into a hotel and is asked if he needs any help with his luggage. He says, "No, I'm traveling light."

Wesley_Rugen_1E

Chemists...

You have to keep an ion them.

Wesley_Rugen_1E

I read somewhere a while back that 10 inches of snow equals 1 inch of rain. If so, how does that work?

Wesley_Rugen_1E

Q: A lamp rated at 32W (1W = 1J/s) emits violet light of wavelength 420nm. How many photons of violet light can the lamp generate in 2.0s? How many moles of photons are emitted in that time interval? So for the first part, it would be 64J. From there, I used E=hv and v=c/wavelength to get E=hc/wavel...

Wesley_Rugen_1E

Lines in the Balmer series of the hydrogen spectrum are observed at 653.6, 486.1, 434.0, and 410.2 nm. What is the wavelength of the next line in the series?

I am totally lost on this question. How would I find the wavelength of the next line in this series?

CHEMISTRY COMMUNITY

Search found 23 matches

Re: k'

Re: Post All Chemistry Jokes Here

Rxn steps

BF3

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Intensive property

Entropy when P isn't constant

Re: Isothermal?

HW 8.57

How to achieve maximum work from an electric battery?

Re: Weak Acid

Can you classify acids as strong or weak from their formulas alone? [ENDORSED]

Why can't hydrogen ions exist by themselves?

Is a negative pH possible? [ENDORSED]

MO Diagram

Re: Reading the textbook

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Does 10 inches of snow equal 1 inch of rain?

1.27 [ENDORSED]

1.57 [ENDORSED]