CHEMISTRY COMMUNITY

Alexa_Kwang_1D

What was the charge when NaCl was arrested?
A salt

Alexa_Kwang_1D

Why did the acid go to the gym?

To become a buffer solution!

Alexa_Kwang_1D

Why does a hamburger have lower energy than a steak?
It's in the ground state!

Alexa_Kwang_1D

You must be made of uranium and iodine because all I see is U and I

Alexa_Kwang_1D

What do you call iron blowing in the wind?

Febreeze

Alexa_Kwang_1D

What happened to the man who was stopped for having sodium chloride and a nine-volt in his car?

He was booked for a salt and battery.

Alexa_Kwang_1D

If H2O is water, what is H2O4?

Drinking, bathing, washing, swimming, etc.

Alexa_Kwang_1D

Potential difference, also known as voltage, is the difference in electric potential between the two electrodes and is equal to the work done per unit of charge against an electric field to move a charge between the electrodes. Negatively charged particles are pulled towards higher potential differe...

Alexa_Kwang_1D

I would because sometimes numbers in tables are approximations or are not the most precise so you need to account for that.

Alexa_Kwang_1D

According to the 2nd law of thermodynamics, entropy (and thus correlation) is never decreasing in an isolated system. If it has reached equilibrium than it is not increasing either, so it must be at its max.

Alexa_Kwang_1D

You said 1/2 O2 because your primary goal is forming only ONE mole of the product (H2O or CO2). If you use 1 O2, more than one mole of product would be formed.

Alexa_Kwang_1D

soup that is poured into a completely insulated container with a lid so no heat or material can be exchanged (thermoflask if it worked perfectly; realistically thermoflasks are not completely insulated so not completely isolated), insulated gas tank, the universe(?)

Alexa_Kwang_1D

I'm guessing Constant P calorimetry is when you keep pressure constant and Constant V calorimetry is when you keep volume constant. You would thus use different types of calorimeters because different calorimeters hold constant different things and would fulfill different conditions.

Alexa_Kwang_1D

The energy required to break a C-C bond in a molecule is 348 kj/mol. Will visible light be able to break this bond?

For this question, do we have to convert 348 kj/mol to kj/molecule because the question is referring to a single molecule?

Alexa_Kwang_1D

I learned it as the number of sigfigs of the H30+ concentration is the number of digits after the decimal of the pH. So -log[0.0652]=1.186.

Alexa_Kwang_1D

Correct me if I'm wrong, but I would think that you would omit the solids and liquids from the ICE box because they are not included in the equilibrium equation.

Alexa_Kwang_1D

Wait how do you solve that second problem without knowing the equilibrium constant?

Alexa_Kwang_1D

You can find hybridization by counting the number of atoms bonded to the atom you're examining and the number of lone pairs the atom has (regions of electron density). You don't subtract 1 from that sum because you are not using "sp" as a unit (sp^3 is not 3 sp's). "S" is a separ...

Alexa_Kwang_1D

No, sigma bonds are not limited to just those pairs of orbitals. A sigma bond is just defined as being formed by head-on overlapping between orbitals, meaning other orbitals (ex. dz2 - dz2) can also have sigma bonds.

Alexa_Kwang_1D

What did the student who failed chemistry say?
If I had electrons I would have an octet because I don't do chemistry.

Alexa_Kwang_1D

Yes, a half-filled p sub-shell (that carbon would have) is more stable than having four electrons in the p sub-shell (that nitrogen would have). The fourth electron in nitrogen's p sub-shell would be paired with another electron in the same orbital, and the slight repulsion between the two electrons...

Alexa_Kwang_1D

I think it should because c=\lambda \nu is based on the the description of light as a wave and E=h\nu is based on the description of light as particles (since it describes the energy of a photon). The ability to combine the two into E=\frac{hc}{\lambda } should reflect the wave-particle duality of l...

Alexa_Kwang_1D

Yes n1 is the initial energy level and n2 is the final energy level. Both n1 and n2 are integers (1, 2, 3, 4...) and n2>n1.

Alexa_Kwang_1D

Pretty sure it's typically a matter of sig figs given in the question.

CHEMISTRY COMMUNITY

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