CHEMISTRY COMMUNITY

mitalisharma2B

What do you call a tooth in a glass of water? A one molar solution.

mitalisharma2B

Old chemists never die, they just stop reacting

mitalisharma2B

Did you know that oxygen went for a second date with potassium?
How did it go?
It went OK2!

mitalisharma2B

You must be the acid to my litmus paper because every time I meet you I turn bright red.

mitalisharma2B

Are you made of copper and tellurium? Because you're CuTe.

mitalisharma2B

Did You Know Protons Have Mass?

I didn't even know they were Catholic!

mitalisharma2B

Why Does Hamburger Yield Lower Energy Than Steak?

Because it's in the ground state.

mitalisharma2B

You Must Be A Compound Of Barium and Beryllium

Because you're a total BaBe

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Thank you!!

mitalisharma2B

When writing cell diagrams based on balanced equations how do we know when to add Pt(s) onto each end of the reaction? For example, see 13b from chapter 14. (b) Ce4+(aq) + I-(aq) --> I2(s) + Ce3+(aq) the solutions say that the cell diagram is Pt (s) | I-(aq) | I2(s) || Ce4+(aq) | Ce3+(aq) | Pt(...

mitalisharma2B

We don't use the molarity of solids and liquids when determining the equilibrium constant of a reaction, right?
Only aqueous solutions?

mitalisharma2B

All the good chemistry jokes ARGON

mitalisharma2B

All the good chemistry jokes ARGON

mitalisharma2B

for #43 (9.43 Suppose that 50.0 g of H2O(l) at 20.0 C is mixed with 65.0 g of H2O(l) at 50.0 C at constant atmospheric pressure in a thermally insulated vessel. Calculate S and Stot for the process.), why wouldn't we use deltaS = nCpln(Tf/Ti) ? How do we find the individual deltaS(hot) and delta...

mitalisharma2B

A steeper slope on a heating curve is indicative of a greater temperature change over a lesser energy expenditure. Heat capacity relates to the amount of energy required to increase the temperature by 1 degree Celsius. A lower heat capacity will correlate to a steeper slope because it the temperatur...

mitalisharma2B

Why is it that we must create an "equation where the sum of the [heat of formation of the products] minus the sum of the [heat of formation of the reactants] equals -338.4kJ"?

Why wouldn't the answer be -338.4kJ?

mitalisharma2B

Q: What do you do with a dead chemists?
A: Barium

mitalisharma2B

I had to make these bad chemistry jokes because all the good ones Argon.

mitalisharma2B

Q: Anyone know any jokes about sodium?
A: Na

mitalisharma2B

The name's Bond. Ionic Bond. Taken, not shared.

mitalisharma2B

My answer has been off multiple times when trying to complete 12.55. I'm not sure if it is just because I am plugging into the quadratic formula incorrectly. Please elaborate on how you completed this problem. Calculate the pH, pOH, and percentage deprotonation of each of the following aqueous solut...

mitalisharma2B

Q: What do chemists call a benzene ring with iron atoms replacing the carbon atoms? A: A ferrous wheel.

mitalisharma2B

Haha. Yeah, the class definitely started moving a lot faster. I didn't take AP Chem, but I've just been going to a lot of office hours. How did you all think the last test went?

mitalisharma2B

We can't add trans or cis when naming ligands unless the lewis structure is provided for us, right?

mitalisharma2B

If the overall compound is neutral, is it still just the elemental name?

mitalisharma2B

Is coordination number related to the number of bonding regions or the number of bonds? (My notes from class said number of bonds, but I was unsure of this.)

Thanks!

mitalisharma2B

I'm still a bit unsure of when to use di, tri, tetra vs. bis, tris, tetrakis.
I believe the latter is used in polydentates, but are the prefixes only used on the later ligand names or all of them?

Thanks!

mitalisharma2B

Within coordination compounds, when is "-ate" added to the central ion? When is the central ion just named as its elemental name?

Ex: cobalt vs. cobaltate
or platinum vs. platinate

mitalisharma2B

If you're not part of the solution, you're part of the precipitate.

mitalisharma2B

Did you hear oxygen went on a date with potassium? A: It went OK.

mitalisharma2B

Under what circumstances specifically will an atom be hybridized rather than having a standard electron configuration? I understand the case of Carbon needing more than 2 valence electrons (available for bonding), but in every other case, why are atoms hybridized? Does anyone have a rule or trick fo...

mitalisharma2B

How does Iron Man freshen up his apartment?
With some Fe-breeze

mitalisharma2B

Why did the noble gas cry?
Because all his friends Argon :(

mitalisharma2B

Good fun.

If the Silver Surfer and Iron Man team up, they’d be alloys

mitalisharma2B

Why is it that the atom with the lowest ionization energy is always the central atom of a Lewis Structure?

mitalisharma2B

The question states: Ionization energies usually increase on going from left to right across the periodic table. The ionization energy for oxygen, however, is lower than that of either nitrogen or fluorine. Explain this anomaly. I understand why oxygen has a lower ionization energy than fluorine, bu...

mitalisharma2B

Would elements in the 5d group have 9 electrons instead of 10?

For instance, homework problem 2.51 asks how many unpaired electrons reside in the predicted ground state electron configuration for Tantalium.
Would the answer to this be 2 unpaired electrons or 3 unpaired electrons?

mitalisharma2B

In 1.0 s, a 60 W bulb emits 11 J of energy in the form of infrared radiation (heat) of wavelength 1850 nm. What is the energy per photon of light emitted? How many photons of infrared radiation does the lamp generate in 1.0 s? How do you find the number of photons generated? Well in order to find th...

mitalisharma2B

Yes, we would not express frequency or wavelength in terms of a negative number. However, when discussing change in energy, your value would be negative because energy is being released. Your final energy is less than your initial energy level.

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