Search found 30 matches

by Caroline LaPlaca
Sat Mar 17, 2018 11:48 pm
Forum: Balancing Redox Reactions
Topic: determining cathode from anode
Replies: 11
Views: 479

Re: determining cathode from anode

RED CAT= reduced cathode
by Caroline LaPlaca
Sat Mar 17, 2018 11:47 pm
Forum: *Alkanes
Topic: Final
Replies: 13
Views: 1160

Re: Final

CHeck the red panda practice exam
by Caroline LaPlaca
Sat Mar 17, 2018 11:47 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Pre equilibrium
Replies: 5
Views: 346

Re: Pre equilibrium

It is fine to do either!
by Caroline LaPlaca
Sun Mar 11, 2018 3:31 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Reading a Cell Diagram
Replies: 4
Views: 265

Re: Reading a Cell Diagram

the reactant should be more to the left of each side
by Caroline LaPlaca
Sun Mar 11, 2018 3:30 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: 14.37(a)
Replies: 2
Views: 129

Re: 14.37(a)

You should assume the cathode is the one with the lower.
by Caroline LaPlaca
Sun Mar 11, 2018 3:29 pm
Forum: Zero Order Reactions
Topic: zero order rate?
Replies: 14
Views: 561

Re: zero order rate?

With a zero order reaction! The rate is independent of the concentration
by Caroline LaPlaca
Sun Mar 04, 2018 11:39 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Friday Lecture
Replies: 5
Views: 176

Re: Friday Lecture

It’s because of CO2
by Caroline LaPlaca
Sun Mar 04, 2018 11:37 pm
Forum: Zero Order Reactions
Topic: Identifying zero order
Replies: 6
Views: 232

Re: Identifying zero order

There is no change in rate
by Caroline LaPlaca
Sun Mar 04, 2018 4:09 pm
Forum: First Order Reactions
Topic: Pseudo-1st-Order
Replies: 6
Views: 257

Re: Pseudo-1st-Order

I found this link that really helped me with this topic. https://chem.libretexts.org/Core/Physic ... _reactions
by Caroline LaPlaca
Tue Feb 27, 2018 6:18 pm
Forum: Second Order Reactions
Topic: 15.19
Replies: 2
Views: 132

Re: 15.19

set it up like you are dividing the second reaction from the first reaction :)
by Caroline LaPlaca
Tue Feb 27, 2018 1:27 am
Forum: Balancing Redox Reactions
Topic: Balancing number of electrons
Replies: 10
Views: 366

Re: Balancing number of electrons

You gotta make sure all the electrons are balanced.
by Caroline LaPlaca
Tue Feb 27, 2018 1:25 am
Forum: General Rate Laws
Topic: 15.17
Replies: 4
Views: 181

Re: 15.17

No, cause its not like the K concentration thing.
by Caroline LaPlaca
Mon Feb 19, 2018 2:27 am
Forum: Balancing Redox Reactions
Topic: Basic and Acidic conditions [ENDORSED]
Replies: 11
Views: 3373

Re: Basic and Acidic conditions [ENDORSED]

H3o+ in high concentrations means an acidic solution. Oh- in high concentrations means a basic one.
by Caroline LaPlaca
Mon Feb 19, 2018 2:25 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: redox
Replies: 7
Views: 282

Re: redox

oxidized means losing an electron and reduced means gaining an electron
by Caroline LaPlaca
Mon Feb 19, 2018 2:24 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: G=-nFE
Replies: 3
Views: 198

Re: G=-nFE

n just means to write the number of moles!
by Caroline LaPlaca
Sun Feb 11, 2018 3:15 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Irreversible Expansion
Replies: 3
Views: 180

Re: Irreversible Expansion

delta S is zero because the surroundings are much much bigger than the system
by Caroline LaPlaca
Sun Feb 11, 2018 3:14 pm
Forum: Balancing Redox Reactions
Topic: Oxidation vs. reduction
Replies: 8
Views: 224

Re: Oxidation vs. reduction

If the little plus sign gets higher, it means the atom is losing an electron and therefore is being oxidized.
by Caroline LaPlaca
Sun Feb 11, 2018 3:14 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Gibbs free energy and spontaneity
Replies: 3
Views: 133

Re: Gibbs free energy and spontaneity

Yes because entropy and enthalpy both affect the chance of spontaneity.
by Caroline LaPlaca
Mon Feb 05, 2018 9:59 am
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: negative entropy [ENDORSED]
Replies: 10
Views: 343

Re: negative entropy [ENDORSED]

no, it just means the system is becoming more ordered.
by Caroline LaPlaca
Mon Feb 05, 2018 9:58 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Gibbs Free Energy
Replies: 7
Views: 203

Re: Gibbs Free Energy

Its a way to determine if a reaction will happen spontaneously
by Caroline LaPlaca
Mon Feb 05, 2018 9:57 am
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Types of Disorders [ENDORSED]
Replies: 5
Views: 206

Re: Types of Disorders [ENDORSED]

increasing temperature increases the motion of the molecules, increasing disorder.
by Caroline LaPlaca
Sun Jan 28, 2018 6:08 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Entropy [ENDORSED]
Replies: 4
Views: 166

Re: Entropy [ENDORSED]

yes entropy is a state function
by Caroline LaPlaca
Sun Jan 28, 2018 6:07 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Ideal Behavior
Replies: 3
Views: 151

Re: Ideal Behavior

standard conditions
by Caroline LaPlaca
Sun Jan 21, 2018 5:02 pm
Forum: Calculating Work of Expansion
Topic: Battery and reversible process
Replies: 1
Views: 123

Re: Battery and reversible process

I do know that disposable batteries were irreversible but car batteries are reversible. I think it has to do with special connectors.
by Caroline LaPlaca
Sun Jan 21, 2018 4:51 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Internal Energy
Replies: 2
Views: 165

Re: Internal Energy

He said there would be concept questions about work and internal energy but not calculating w and delta U.
by Caroline LaPlaca
Sun Jan 14, 2018 8:18 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Molar heat capacity of gas
Replies: 3
Views: 127

Re: Molar heat capacity of gas

Constant volume and constant pressure are two different situations for a gas. Therefore, there must be two different values for molar heat capacity of gas.
by Caroline LaPlaca
Sun Jan 14, 2018 8:17 am
Forum: Phase Changes & Related Calculations
Topic: Why can state properties be added?
Replies: 11
Views: 448

Re: Why can state properties be added?

Due to the fact that they are not based on the state of the substance, they are not an intrinsic property. Therefore, they can be added and substracted.

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