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Manas_Varma_4B

It is a strong base because it fully ionizes in water, so the OH- comes off and the molecule doesn't have anymore.

Manas_Varma_4B

It is a strong acid because it fully ionizes in water, it fully disassociates.

Manas_Varma_4B

Not all do, for example Al2O3 and B2O3

Manas_Varma_4B

It's a strong acid because it completely disassociates by losing its one proton, H+.

Manas_Varma_4B

I personally just round off to sig figs at the very end of the problem.

Manas_Varma_4B

Usually, if the conjugate base is more stable, the resulting acid will be stronger.

Manas_Varma_4B

Compounds such as sulfur dioxide and nitrogen oxides mix with water in the atmosphere to form acids, which eventually have the capability to harm the soil and hence the flora.

Manas_Varma_4B

Bronsted acids donate protons, and bronsted bases accept protons; while Lewis acids accept electrons, and Lewis bases donate electrons.

Manas_Varma_4B

If a compound is polyprotic then it means that it can lose more than one proton. So it'll probably have something like "Hsub2"

Manas_Varma_4B

Amphiprotic means that the compound can both accept and donate electrons; while amphoteric means that the compounds can react as both acids and bases.

Manas_Varma_4B

In the case of a bigger atom, there are more electrons so the greater area can mean that London Forces are stronger than Dipole-Dipole

Manas_Varma_4B

Lewis acids accept pairs of electrons, while Lewis bases donate pairs of electrons.

Manas_Varma_4B

Sigma bonds overlap head to head, as opposed to pi bonds that overlap through the sides of p orbitals.

Manas_Varma_4B

Yeah, they both do. Highest values are at Flourine.

Manas_Varma_4B

How do you draw it?

Manas_Varma_4B

Thank you so much! That was very helpful.

Manas_Varma_4B

why do salts of weak bases produce acidic solutions and salts of weak acids produce basic
solutions?

Manas_Varma_4B

What specifically do we need to know about these coordination compounds?

Manas_Varma_4B

Do we need to be able to write out the whole ligand, or is putting (en) sufficient?

Manas_Varma_4B

What are the well-known examples of coordination compounds used as chemotherapy drugs that we need to know?

Manas_Varma_4B

If given the amount of hydronium ion in a solution, how would you find pOH?

Manas_Varma_4B

This is what his outline says to know: Identify common drinks, foods, and household items as acidic or basic. • Describe chemical properties of acids, bases and amphoteric compounds. • Draw the structures of acids, bases and amphoteric compounds. • Recognize acids and bases from their formulas and/o...

Manas_Varma_4B

I have a TI-30x and it works really well.

Manas_Varma_4B

The atoms with a lower ionization energy have a greater ability to bond with other atoms since they have more "open spots" to form an octet. Because of this, the atom with more spots to bond goes in the middle and the ones with less go on the outside (for example Hydrogen).

Manas_Varma_4B

The resonance structures themselves don't actually exist in real life, but that's how we are able to model what the structure of the molecule actually looks like, which is an average of all the resonance structures.

Manas_Varma_4B

The Rydberg formula is E(n)= -[(h)(R)]/n^2

However to calculate the change in energy, you must also do E(final) - E(initial).

Manas_Varma_4B

Planck's constant, defined as 6.63*10^-34 Joule*seconds

Manas_Varma_4B

That represents the kinetic energy of the electron after it is ejected from the surface of the metal. The m(e-) is the mass of the electron and v(e-) represents the velocity of the electron when it is ejected.

Manas_Varma_4B

I'm not sure exactly what you're supposed to do, but when I calculate molar mass I go to the amount of sig figs in other numbers given in the problem.

Manas_Varma_4B

You want the numbers that are decimals to be as close as possible to a whole number. In this case: 2.67 x 1 = 2.67 (not close to a whole number) 2.67 x 2 = 5.34 (not close to a whole number) 2.67 x 3 = 8.01 (close to a whole number) So if you multiply all the mole numbers by 3, you get 3 oxygen, 8 h...

CHEMISTRY COMMUNITY

Search found 30 matches

Re: Strong base

Re: Strong acid

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Re: Stability of Conjugate Base

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Weak bases and weak acids

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Do we need to know the ligand (en)?

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Re: Sig Figs & Molar Mass

Re: Converting from mole ratios to empirical formula