CHEMISTRY COMMUNITY

Ashley Fallon 3C

acid strength can be determined by looking at how stable its conjugate base is. If the conjugate base has more EN atoms, then it creates delocalization of electrons and makes it more stable

Ashley Fallon 3C

the x value is so small compared to the concentration that the change is negligible for when you're calculating x

Ashley Fallon 3C

Kc uses molar concentrations while Kp uses the partial pressures of gasses inside the closed system

Ashley Fallon 3C

They are calculated the same way, but the quotient represents the reaction at any time while the constant is only when the reaction is at equilibrium

Ashley Fallon 3C

Sigma bonds are the FIRST bonds to be made between two atoms. They are made from hybridized orbitals. Pi bonds are the SECOND and THIRD bonds to be made. They are made from leftover "p" orbitals

Ashley Fallon 3C

Heteronuclear diatomic molecules are composed of two atoms of different elements, like in the case of hydrochloric acid and carbon monoxide.

Ashley Fallon 3C

To determine bond order, draw the lewis structure, count the total number of bonds, and divide by the atoms.

Ashley Fallon 3C

If there are no lone pairs then it would be linear because it is lacking the electron repulsion from the lone pairs.

Ashley Fallon 3C

A lewis acid accepts electrons while a lewis base donates electrons

Ashley Fallon 3C

You can tell when comparing the differences in electronegativities of each atom. Generally, if the difference is greater than 2 it is said to be a polar bond.

Ashley Fallon 3C

I read in the textbook that generally for elements with an atomic number of 20 or above, they begin listing the electron configuration in simple numerical order instead of having configurations where 4s comes before 3d

Ashley Fallon 3C

For an electron to be spin paired means that one electron within the orbital has a counterclockwise spin, while the other electron occupying that orbital has a clockwise spin.

Ashley Fallon 3C

Atomic radius is half the distance between two neighboring atoms, and the ionic radius is half the distance between an ionic bond of neighboring atoms.

Ashley Fallon 3C

It is always the electron in the outer valence shell. As n goes up, energy goes up and the electron eventually escapes from the atom.

Ashley Fallon 3C

Yes, the threshold is the same as the work function. Essentially it is just the amount of energy needed to eject an electron from a piece of metal.

Ashley Fallon 3C

They generally use ultraviolet light due to its high energy (high frequency). This gives the individual photons enough energy to eject an individual electron. It follows this 1:1 ratio.

Ashley Fallon 3C

Do you know if the problems will specifically tell us how many significant figures to use? No. With the numbers that are given, you should know how many sig figs to use. But when using molecular mass, the best number is 3-4 sig figs. When in doubt, use 3 sig figs. Other than that, always apply the ...

Ashley Fallon 3C

I usually start with the element that occurs the least. After balancing that, I go in ascending order until I finish.

CHEMISTRY COMMUNITY

Search found 18 matches

Re: Strengths of Acids

Re: Assumption for Subtracting X in Ka or Kb calculation [ENDORSED]

Re: Kp and Kc

Re: Difference betwen constant and quotient?

Re: Pi Bonds vs. Sigma Bonds

Re: Diatomic Molecules

Re: Bond Order

Re: Bent or linear?

Re: Lewis acids and bases [ENDORSED]

Re: Covalent Bonding: Polar and Non-polar

Re: electron configuration

Re: Hund's Rule [ENDORSED]

Re: Atomic Radius vs. Ionic Radius [ENDORSED]

Re: Removing an Electron [ENDORSED]

Re: Threshold level and Work Function [ENDORSED]

Re: Photoelectric Experiments:Light [ENDORSED]

Re: All students read this sig fig post [ENDORSED]

Re: Balancing Chemical equations too slow... any advice? [ENDORSED]