Search found 31 matches

by Nikhita_Jaaswal_2H
Sun Mar 19, 2017 1:09 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: 2016 Final Question 4a
Replies: 2
Views: 275

Re: 2016 Final Question 4a

Yes, the n refers to the number of electrons that are transferred during the redox reaction.
by Nikhita_Jaaswal_2H
Sun Mar 19, 2017 1:00 pm
Forum: Administrative Questions and Class Announcements
Topic: Naming priority
Replies: 3
Views: 443

Re: Naming priority

Functional groups get higher priority when naming as compared to alkene and alkyne bonds.
by Nikhita_Jaaswal_2H
Sun Mar 19, 2017 1:00 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Gauche vs Anti
Replies: 4
Views: 1774

Re: Gauche vs Anti

No in the examples all given, anti is the most stable conformation
by Nikhita_Jaaswal_2H
Sun Mar 19, 2017 12:40 pm
Forum: General Rate Laws
Topic: Order of Steps
Replies: 3
Views: 395

Re: Order of Steps

The order of the steps does not affect the rate law, only whether the step is fast/slow.
by Nikhita_Jaaswal_2H
Sat Mar 18, 2017 12:44 pm
Forum: *Organic Reaction Mechanisms in General
Topic: 4.40 (m)
Replies: 1
Views: 476

Re: 4.40 (m)

A reaction that has a negtative value of ΔG0 and a large gibbs free energy of activation (ΔG‡) are kinetically controlled because they take a long time to occur and are kinetically stable.
by Nikhita_Jaaswal_2H
Sat Mar 18, 2017 12:40 pm
Forum: *Alkenes
Topic: Naming Alkenes/Alkynes
Replies: 2
Views: 599

Re: Naming Alkenes/Alkynes

Naming alkenes and alkynes was included in the coursereader so it can possibly be asked on the final
by Nikhita_Jaaswal_2H
Wed Mar 15, 2017 4:10 pm
Forum: *Alkanes
Topic: Non-Hydrocarbon Substituants
Replies: 1
Views: 517

Re: Non-Hydrocarbon Substituants

For halogenic non-hydrocarbon substituents, you take the name of the substituent (ex. fluorine) and drop the -ine ending and add an -o ending instead. For example fluorine becomes fluoro, iodine becomes iodo, etc. For the numbering, the substituents are given priority and their positioning number is...
by Nikhita_Jaaswal_2H
Wed Mar 15, 2017 4:08 pm
Forum: *Alkanes
Topic: Alkanes vs. Alkenes
Replies: 1
Views: 255

Re: Alkanes vs. Alkenes

An alkane is an organic (noncyclic) hydrocarbon with only single C-C bonds. An Alkene is a noncylclic hydrocarbon that has at least 1 C=C (carbon-carbon double bond).
by Nikhita_Jaaswal_2H
Wed Mar 15, 2017 4:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Formula Sheet for the Final Exam
Replies: 5
Views: 606

Re: Formula Sheet for the Final Exam

The formula sheet that you are given is the one on the back of the periodic table
by Nikhita_Jaaswal_2H
Sun Mar 12, 2017 9:19 pm
Forum: *Calculations Using ΔG° = -RT ln K
Topic: C-H Bond +4 kJ/mol
Replies: 2
Views: 686

Re: C-H Bond +4 kJ/mol

This value is calculated and is constant for all the C-H bonds
by Nikhita_Jaaswal_2H
Sun Mar 12, 2017 12:10 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Details and Review Sessions Winter 2017
Replies: 114
Views: 13627

Re: Final Exam Details and Review Sessions Winter 2017

Skolli20 wrote:Will we need to know about phenol, esters, amides, nitriles, thiols or thioethers?

Thanks!


These are not covered in the course reader, therefore they will not be included in the final
by Nikhita_Jaaswal_2H
Thu Mar 09, 2017 7:09 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 15886

Re: Quiz 3 Winter 2017

304751905 wrote:for #1, why do we need "iso" in front of propyl? wouldn't the 4- signify the branching?

You have to place "iso" in front for the propyl because 4 signifies where the propyl is connected to the decane, not the branching on the propyl substituent itself.
by Nikhita_Jaaswal_2H
Sat Mar 04, 2017 2:02 pm
Forum: *Cycloalkanes
Topic: Cycloalkane Common Names [ENDORSED]
Replies: 1
Views: 277

Cycloalkane Common Names [ENDORSED]

When naming cycloalkanes using common names, when do you use neo/iso vs sec/tert in naming substituents attached to cycloalkanes? Is there a difference or does it not matter?
by Nikhita_Jaaswal_2H
Fri Feb 24, 2017 12:33 pm
Forum: Administrative Questions and Class Announcements
Topic: 14CL
Replies: 6
Views: 830

14CL

Hi,

Does anyone know whether 14CL can be taken at the same time as 14C or whether it is reccommended to be taken after the completion of 14C?
by Nikhita_Jaaswal_2H
Sat Feb 18, 2017 4:18 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 15315

Re: Quiz 2 Winter 2017

Will Quiz 2 also cover materials from before the midterm (in between Quiz 1 and midterm)?
by Nikhita_Jaaswal_2H
Wed Feb 15, 2017 8:53 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1017836

Re: Post All Chemistry Jokes Here

The best thing about learning about equilibrium... is that nothing changes!
by Nikhita_Jaaswal_2H
Wed Feb 15, 2017 8:45 am
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: standard cell potential at equilibrium
Replies: 1
Views: 196

standard cell potential at equilibrium

Hi,

I was just wondering how the standard cell potential is affected at equilibrium. Which cell potential equation can you use to calculate K?
by Nikhita_Jaaswal_2H
Tue Jan 31, 2017 10:07 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 1 Preparation Answers
Replies: 130
Views: 13717

Re: Quiz 1 Preparation Answers

Diego Cortez 2J wrote:Can someone show me the setup for #6? Please and thank you!

(2580) /(2220)= value
Multiply this value by the molar mass of propane
by Nikhita_Jaaswal_2H
Sat Jan 28, 2017 7:21 am
Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
Topic: Residual Entropy 3rd Law of Thermodynamics
Replies: 4
Views: 512

Residual Entropy 3rd Law of Thermodynamics

In the textbook it highlights that the third law of thermodynamics states that at an absolute temperature of T=0, the entropy of the system approaches 0 because there is no positional or thermal disorder. How does the third law of thermodynamics hold true if there is still entropy in the system in t...
by Nikhita_Jaaswal_2H
Sun Jan 22, 2017 2:08 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Enthalpy of Combustion/Formation [ENDORSED]
Replies: 1
Views: 204

Enthalpy of Combustion/Formation [ENDORSED]

How can the enthalpy of combustion be used to calculate the enthalpy of formation of reactants?
by Nikhita_Jaaswal_2H
Mon Jan 16, 2017 9:00 pm
Forum: Phase Changes & Related Calculations
Topic: Adiabatic
Replies: 1
Views: 265

Adiabatic

Hil,

One of the questions I was working on refers to an adiabatic wall in the calculation of internal energy. Does anyone know what this means?
by Nikhita_Jaaswal_2H
Mon Jan 16, 2017 8:01 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1017836

Re: Post All Chemistry Jokes Here

Joke: “What is the difference between thermodynamics and a stick?

Answer: “A stick has two ends and no beginning. Thermodynamics has two ‘beginnings’ (the first and second law) and no end.”
by Nikhita_Jaaswal_2H
Sun Dec 04, 2016 7:26 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: 11.13
Replies: 2
Views: 405

Re: 11.13

You include P in the reaction quotient when the value of the reactants and products are gases and are given to you in bars. If they are given to you in molar concentrations then you don't use P
by Nikhita_Jaaswal_2H
Sun Nov 20, 2016 8:35 pm
Forum: Bronsted Acids & Bases
Topic: Protonation [ENDORSED]
Replies: 2
Views: 343

Protonation [ENDORSED]

What does it mean when an acid is deprotonated, or when a base is deprotonated? How is this different from ionization/dissocation?
by Nikhita_Jaaswal_2H
Sun Nov 20, 2016 8:34 pm
Forum: Lewis Acids & Bases
Topic: Lewis Acids & Bases vs Bronsted Acids & Bases
Replies: 2
Views: 429

Lewis Acids & Bases vs Bronsted Acids & Bases

Hi,

I was wondering if someone could please explain to me the difference between a Lewis Acid/Base as compared to a Bronsted Acid/Base?
by Nikhita_Jaaswal_2H
Thu Nov 10, 2016 10:21 am
Forum: Determining Molecular Shape (VSEPR)
Topic: Period 3 and later bonding
Replies: 1
Views: 213

Period 3 and later bonding

Why don't atoms of Period 3 elements and later form multiple bonds as compared to elements such as Carbon in Period 2 that are able to form double bonds?
by Nikhita_Jaaswal_2H
Sun Oct 30, 2016 8:53 pm
Forum: Hybridization
Topic: DIfference between axial and equatorial lone pairs
Replies: 1
Views: 2049

DIfference between axial and equatorial lone pairs

Can someone please explain the difference between axial lone pairs and equatorial lone pairs to me? How can you tell what type of lone pair a given molecule has?
by Nikhita_Jaaswal_2H
Sun Oct 23, 2016 2:32 pm
Forum: Trends in The Periodic Table
Topic: Electronegativity Difference
Replies: 1
Views: 303

Electronegativity Difference

When determining the electronegativity difference between the elements in a compound, does the number of molecules of each element have any effect?
by Nikhita_Jaaswal_2H
Sun Oct 16, 2016 10:52 pm
Forum: Trends in The Periodic Table
Topic: Aufbau Principle [ENDORSED]
Replies: 2
Views: 413

Aufbau Principle [ENDORSED]

Hi,

I'm a little confused on what the Aufbau Principle and Hund's rule are referring to. Can someone please explain these concepts to me?
by Nikhita_Jaaswal_2H
Fri Oct 07, 2016 8:04 am
Forum: Properties of Electrons
Topic: Atomic Spectra Question [ENDORSED]
Replies: 3
Views: 526

Atomic Spectra Question [ENDORSED]

One of the problems asks: In the ultraviolet spectrum of atomic hydrogen, a line is observed at 102.6 nm. Determine the values of n for the initial and final energy levels of the electron that leads to this spectral line. How would you solve this if you have two unkowns: n1(initial n level) and n2(f...
by Nikhita_Jaaswal_2H
Wed Oct 05, 2016 12:38 am
Forum: Properties of Light
Topic: Threshold Potential
Replies: 1
Views: 338

Threshold Potential

How does the threshold potential of different metals determined theoretically?

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