Search found 24 matches

by Rishi_Kayathi_1E
Fri Mar 17, 2017 5:59 pm
Forum: *Aldehydes
Topic: Names of certain functional groups
Replies: 2
Views: 608

Re: Names of certain functional groups

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.
by Rishi_Kayathi_1E
Mon Mar 13, 2017 8:55 pm
Forum: *Cyclopentanes
Topic: Question on the eclipsed bonds of Cyclopentanes
Replies: 2
Views: 577

Re: Question on the eclipsed bonds of Cyclopentanes

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.
by Rishi_Kayathi_1E
Sun Mar 12, 2017 9:50 am
Forum: *Alkanes
Topic: PRIORITY IN NAMING
Replies: 1
Views: 292

Re: PRIORITY IN NAMING

Thank you!
by Rishi_Kayathi_1E
Fri Mar 03, 2017 1:11 pm
Forum: *Electrophiles
Topic: ambident nucleophiles
Replies: 3
Views: 705

Re: ambident nucleophiles

Both N and S have a lone pair, so either can donate this to form a coordinate covalent bond.
by Rishi_Kayathi_1E
Mon Feb 27, 2017 2:05 pm
Forum: *Nucleophiles
Topic: Nucleophiles that are Neutral?
Replies: 2
Views: 373

Re: Nucleophiles that are Neutral?

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.
by Rishi_Kayathi_1E
Tue Feb 21, 2017 3:55 pm
Forum: General Rate Laws
Topic: Slow Step
Replies: 3
Views: 366

Re: Slow Step

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.
by Rishi_Kayathi_1E
Sun Feb 12, 2017 9:21 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Reducing Hydrogen Ions
Replies: 1
Views: 279

Re: Reducing Hydrogen Ions

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*.
by Rishi_Kayathi_1E
Mon Feb 06, 2017 12:34 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: pH and the Cell Potential
Replies: 2
Views: 293

Re: pH and the Cell Potential

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.
by Rishi_Kayathi_1E
Mon Jan 30, 2017 2:38 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Quiz 1 prep #9
Replies: 2
Views: 275

Re: Quiz 1 prep #9

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.
by Rishi_Kayathi_1E
Sun Jan 29, 2017 7:01 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Understanding Gibbs Free Energy Conceptually
Replies: 1
Views: 238

Re: Understanding Gibbs Free Energy Conceptually

Conceptually, Gibbs free energy is a thermodynamic potential that describes the system.
by Rishi_Kayathi_1E
Tue Jan 24, 2017 12:39 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7569
Views: 1012091

Re: Post All Chemistry Jokes Here

A pessimist sees a glass half empty, an optimist sees a glass half full, but a chemist sees a glass half filled with H2O.
by Rishi_Kayathi_1E
Wed Jan 18, 2017 2:18 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: A System at Constant Volume
Replies: 3
Views: 426

Re: A System at Constant Volume

Closed and isolated systems are always at constant volume whereas an open system may experience a change in volume.
by Rishi_Kayathi_1E
Wed Jan 11, 2017 3:13 pm
Forum: Phase Changes & Related Calculations
Topic: Steam Severe Burns Question
Replies: 3
Views: 313

Re: Steam Severe Burns Question

The enthalpy of condensation is very high and as this is exothermic it ends up causing burns.
by Rishi_Kayathi_1E
Tue Nov 29, 2016 11:00 am
Forum: Identifying Acidic & Basic Salts
Topic: Telling if oxides are acidic or basic
Replies: 1
Views: 353

Re: Telling if oxides are acidic or basic

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...
by Rishi_Kayathi_1E
Mon Nov 21, 2016 4:03 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7569
Views: 1012091

Re: Post All Chemistry Jokes Here

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

A: A ferrous wheel!
by Rishi_Kayathi_1E
Mon Nov 14, 2016 7:44 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Numbers [ENDORSED]
Replies: 4
Views: 496

Re: Coordination Numbers [ENDORSED]

nitrito--> 1 carbanato--> 1 sulfato---> 1 edta--> 4
by Rishi_Kayathi_1E
Tue Nov 08, 2016 1:19 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: MO Diagrams
Replies: 2
Views: 296

Re: MO Diagrams

Bonding involves only the outermost valence electrons. Since the 1s orbitals do not participate in bonding they are not included in the diagram.
by Rishi_Kayathi_1E
Mon Oct 31, 2016 5:53 pm
Forum: Hybridization
Topic: Hybridization Order
Replies: 4
Views: 418

Re: Hybridization Order

In some cases it is different because dsp2 and sp2d are both different.
by Rishi_Kayathi_1E
Sat Oct 22, 2016 7:41 pm
Forum: Bond Lengths & Energies
Topic: Bond Lengths
Replies: 3
Views: 472

Re: Bond Lengths

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.
by Rishi_Kayathi_1E
Fri Oct 21, 2016 7:47 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7569
Views: 1012091

Re: Post All Chemistry Jokes Here

You're Berryllium Gold Titanium Flourine Uranium Lithium (Be Au Ti F U Li) dressed.
by Rishi_Kayathi_1E
Fri Oct 14, 2016 12:47 am
Forum: Trends in The Periodic Table
Topic: Atomic Size in a Group
Replies: 1
Views: 226

Re: Atomic Size in a Group

It is because of the poor shielding effect of d orbitals as compared to s and p orbitals.
by Rishi_Kayathi_1E
Thu Oct 13, 2016 9:34 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7569
Views: 1012091

Re: Post All Chemistry Jokes Here

I tell bad chemistry jokes because all the good ones Argon.
by Rishi_Kayathi_1E
Thu Oct 06, 2016 4:47 pm
Forum: Phase Changes & Related Calculations
Topic: Chemistry Humor
Replies: 26
Views: 2580

Re: Chemistry Humor

I once told a chemistry joke, but there was no reaction...
by Rishi_Kayathi_1E
Wed Sep 28, 2016 11:05 am
Forum: Administrative Questions and Class Announcements
Topic: Peer Facilitated Learning Sessions
Replies: 32
Views: 11216

Re: Peer Facilitated Learning Sessions

Can we attend any days session?

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