CHEMISTRY COMMUNITY

Rishi_Kayathi_1E

There are only a few so I'd recommend learning them. But, I'm pretty sure we just need to know how to use them in naming.

Rishi_Kayathi_1E

The ball and stick model shown in the course reader is contoured to display the actual structure of the molecule. Due to the strain, the atoms shift so that they are no eclipsed bonds.

Rishi_Kayathi_1E

Thank you!

Rishi_Kayathi_1E

Both N and S have a lone pair, so either can donate this to form a coordinate covalent bond.

Rishi_Kayathi_1E

If you remember from chem 14a, some atoms may have empty orbitals. Filling these will give the atom increased stability and therefore they attract electrons to fill up these orbitals.

Rishi_Kayathi_1E

The slow step isn't required to find the mechanism. In the mechanism we look for the slowest step and consider it the rate determining step. This is determined by experimentally.

Rishi_Kayathi_1E

Hydrogen has an electric potential of 0. By definition, a species with a lower electric potential has higher reducing nature (higher tendency to take electrons) and therefore only negative cell potentials can reduce H *spontaneously*.

Rishi_Kayathi_1E

The pH of the solution represents the concentration of the Hydrogen ions in the solution. By inserting these concentrations into the Nernst equation we can calculate the cell potential.

Rishi_Kayathi_1E

Gibbs free energy and entropy of a system are both state function. As the process is a cyclic function, the system always returns to the same state. Hence, as it returns to the same state the change is 0 in the aforementioned properties.

Rishi_Kayathi_1E

Conceptually, Gibbs free energy is a thermodynamic potential that describes the system.

Rishi_Kayathi_1E

A pessimist sees a glass half empty, an optimist sees a glass half full, but a chemist sees a glass half filled with H2O.

Rishi_Kayathi_1E

Closed and isolated systems are always at constant volume whereas an open system may experience a change in volume.

Rishi_Kayathi_1E

The enthalpy of condensation is very high and as this is exothermic it ends up causing burns.

Rishi_Kayathi_1E

Oxides of the first two groups are basic and as you move towards the right the acidic nature of the oxides start to increase. The oxides on the far right are always acidic but the ones in the middle may be amphoteric or acidic. There are only a few amphoteric oxides so I'd reccomend that you memoriz...

Rishi_Kayathi_1E

Q: What do chemists call a benzene ring with iron atom in the middle?

A: A ferrous wheel!

Rishi_Kayathi_1E

nitrito--> 1 carbanato--> 1 sulfato---> 1 edta--> 4

Rishi_Kayathi_1E

Bonding involves only the outermost valence electrons. Since the 1s orbitals do not participate in bonding they are not included in the diagram.

Rishi_Kayathi_1E

In some cases it is different because dsp2 and sp2d are both different.

Rishi_Kayathi_1E

Generally, a triple bond is stronger than a double which in turn is stronger than a single bond. However, to know for sure we must look at the bond disassociation energies to find out which one is the strongest.

Rishi_Kayathi_1E

You're Berryllium Gold Titanium Flourine Uranium Lithium (Be Au Ti F U Li) dressed.

Rishi_Kayathi_1E

It is because of the poor shielding effect of d orbitals as compared to s and p orbitals.

Rishi_Kayathi_1E

I tell bad chemistry jokes because all the good ones Argon.

Rishi_Kayathi_1E

I once told a chemistry joke, but there was no reaction...

Rishi_Kayathi_1E

Can we attend any days session?

CHEMISTRY COMMUNITY

Search found 24 matches

Re: Names of certain functional groups

Re: Question on the eclipsed bonds of Cyclopentanes

Re: PRIORITY IN NAMING

Re: ambident nucleophiles

Re: Nucleophiles that are Neutral?

Re: Slow Step

Re: Reducing Hydrogen Ions

Re: pH and the Cell Potential

Re: Quiz 1 prep #9

Re: Understanding Gibbs Free Energy Conceptually

Re: Post All Chemistry Jokes Here

Re: A System at Constant Volume

Re: Steam Severe Burns Question

Re: Telling if oxides are acidic or basic

Re: Post All Chemistry Jokes Here

Re: Coordination Numbers [ENDORSED]

Re: MO Diagrams

Re: Hybridization Order

Re: Bond Lengths

Re: Post All Chemistry Jokes Here

Re: Atomic Size in a Group

Re: Post All Chemistry Jokes Here

Re: Chemistry Humor

Re: Peer Facilitated Learning Sessions