Search found 157 matches
- Thu Mar 11, 2021 9:12 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Anode<Cathode
- Replies: 1
- Views: 175
Anode<Cathode
How come when concentration of the anode<cathode, E is positive wouldn't it be the opposite?
- Thu Mar 11, 2021 8:36 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: 7.11 Textbook
- Replies: 2
- Views: 179
7.11 Textbook
For this question how are we supposed to know which one is the slow step just by looking at it? Or how would we figure it out?
- Wed Mar 10, 2021 5:15 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Textbook 7.9
- Replies: 1
- Views: 186
Textbook 7.9
Can someone give a more simplified answer to this question I'm really confused by the answer that was given?
- Wed Mar 10, 2021 5:13 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Textbook 7E.3 [ENDORSED]
- Replies: 2
- Views: 191
Re: Textbook 7E.3 [ENDORSED]
Thank you!
- Tue Mar 09, 2021 7:27 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Textbook 7E.3 [ENDORSED]
- Replies: 2
- Views: 191
Textbook 7E.3 [ENDORSED]
Can someone please explain how to do this problem and what equations to use I am so lost?!
- Tue Mar 09, 2021 2:11 pm
- Forum: First Order Reactions
- Topic: Textbook 7B.3 part c
- Replies: 1
- Views: 131
Textbook 7B.3 part c
How come in part c to find[A]t you subtract the final concentration after _ seconds from the initial concentration instead of just using the final concentration?
- Mon Mar 08, 2021 5:42 pm
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Textbook 6.45
- Replies: 1
- Views: 256
Textbook 6.45
How do you know if something is the most strongly reducing metal?
- Mon Mar 08, 2021 4:59 pm
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Textbook 6O.1
- Replies: 1
- Views: 197
Textbook 6O.1
Can someone explain completely how to do this problem. I'm really confused how you figure out the half-reactions and how you "choose the reaction with the most positive standard reduction potential"?
- Mon Mar 08, 2021 3:25 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Textbook 6N.7
- Replies: 4
- Views: 309
Textbook 6N.7
How come in part b, n is 1? Shouldn't n be 2 since 2H+ + 2e- --> H2 ??
- Thu Mar 04, 2021 1:26 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Textbook 6L.7
- Replies: 1
- Views: 112
Textbook 6L.7
For part c I am really confused how you know to add KOH and Ni to the cell diagram? Also the cathode reaction was not in the standard reduction potentials table so how would we find E for it?
- Thu Mar 04, 2021 1:24 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Textbook 6L.9
- Replies: 1
- Views: 131
Textbook 6L.9
Why is H20 not in the cell diagram for this reaction? Also how do you know to add Pt?
- Wed Mar 03, 2021 1:23 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Pt(s)
- Replies: 2
- Views: 139
Pt(s)
How do you know when to add Pt?
- Wed Mar 03, 2021 1:23 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Diagram order
- Replies: 2
- Views: 191
Cell Diagram order
Does it matter which order the cell diagram is in? like for textbook question 6L.5 part C how do you know if the diagram goes Cl- / Cl2 or Cl2 / Cl- ?
- Wed Mar 03, 2021 11:06 am
- Forum: Balancing Redox Reactions
- Topic: Textbook 6L.3 Part e
- Replies: 2
- Views: 225
Textbook 6L.3 Part e
How come in the cell diagram Sn4+ comes first and Cl- comes first but in the half reactions Sn2+ and Hg2Cl2 are the reactants?
- Wed Mar 03, 2021 10:47 am
- Forum: Balancing Redox Reactions
- Topic: Textbook 6L.3
- Replies: 1
- Views: 115
Textbook 6L.3
For part d of this problem I'm really confused how to make the half reactions. I thought when two things are seperated by a single like and are on the left side of teh double lines this means that one reacts to form the other. For example O2 would react to form H+. However in the answer key O2 react...
- Thu Feb 25, 2021 1:58 pm
- Forum: Balancing Redox Reactions
- Topic: 6K.3 Textbook
- Replies: 1
- Views: 125
Re: 6K.3 Textbook
Also why is Cl2 the oxidizing and reducing agent?
- Thu Feb 25, 2021 1:56 pm
- Forum: Balancing Redox Reactions
- Topic: 6K.3 Textbook
- Replies: 1
- Views: 125
6K.3 Textbook
For part D of this problem how did they get Cl- if that was not in the equation. also why do you add H+ if the reaction is already balanced without H+ and e-
Wouldn't it be just 2H2O+Cl2--> 2HOCl?
Wouldn't it be just 2H2O+Cl2--> 2HOCl?
- Thu Feb 25, 2021 9:31 am
- Forum: Balancing Redox Reactions
- Topic: 6K.1 Textbook
- Replies: 1
- Views: 116
6K.1 Textbook
In this problem how come for the oxidation half reaction there are 6e- in the reactants? How do you know it is 6?
- Mon Feb 22, 2021 10:00 am
- Forum: Balancing Redox Reactions
- Topic: Balancing
- Replies: 9
- Views: 490
Balancing
So when you balance the reaction do you use the E value from before it was balanced?
- Mon Feb 22, 2021 9:59 am
- Forum: Balancing Redox Reactions
- Topic: Inert Conductor
- Replies: 3
- Views: 215
Inert Conductor
Can someone explain what the inert conductor is for? In lecture Dr. Lavelle said, "Use inert conductor (platinum, Pt) as electrode to transfer e-" What does this mean?
- Fri Feb 19, 2021 12:16 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: 4J.13 Textbook
- Replies: 3
- Views: 271
4J.13 Textbook
Can someone explain how to find the free energy fo formation and why a positive free energy of formation is stable?
- Mon Feb 15, 2021 6:30 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Textbook 4.49 [ENDORSED]
- Replies: 1
- Views: 126
Textbook 4.49 [ENDORSED]
Can someone explain this problem/solution for me. I'm really confused by the solution we were given.
- Wed Feb 10, 2021 2:47 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Textbook 4D.7
- Replies: 2
- Views: 216
Textbook 4D.7
in this question how are we supposed to know that the Temperature is 298 K?
- Wed Feb 10, 2021 11:26 am
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Temperature
- Replies: 7
- Views: 349
Temperature
Professor Lavelle mentions in lecture that as heat is given off the temperature remains the same. How is this possible or how does this work?
- Tue Feb 09, 2021 6:49 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: 4D.3
- Replies: 2
- Views: 150
4D.3
How do you know when to divide q by moles or multiply by moles? I'm confused why in textbook question 4D.3 they divided by moles?
- Tue Feb 09, 2021 3:38 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: molar heat capacity
- Replies: 9
- Views: 500
molar heat capacity
What is the difference between molar heat capacity and enthalpy?
- Tue Feb 09, 2021 3:17 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: 4c.3
- Replies: 4
- Views: 197
4c.3
What is the difference between the change in enthalpy at constant pressure and constant volume?
- Tue Feb 09, 2021 3:01 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: 4C.1
- Replies: 3
- Views: 223
4C.1
NO2 because"Heat capacity increases with molar complexity"
- Doesn't entropy increase with molar complexity or degeneracy? Is heat capacity the same as entropy? What is heat capacity?
- Doesn't entropy increase with molar complexity or degeneracy? Is heat capacity the same as entropy? What is heat capacity?
- Thu Feb 04, 2021 3:54 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: qreaction
- Replies: 3
- Views: 197
qreaction
Why is qreaction+qcalorimeter=0??
- Thu Feb 04, 2021 2:40 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Textbook 4A.11
- Replies: 1
- Views: 110
Textbook 4A.11
how come the heat capacity is the answer for this question is equal to just q/deltaT and not q/nT because isn't the equation q=nCT? Is moles disregarded in this case?
- Thu Feb 04, 2021 2:21 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Textbook 4A.7
- Replies: 1
- Views: 98
Re: Textbook 4A.7
How do you find the percentage of heat used to raise the temperature of water?
- Thu Feb 04, 2021 2:13 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Textbook 4A.7
- Replies: 1
- Views: 98
Textbook 4A.7
Where or how do you find the Cp values for this problem and also why do you not convert grams to moles?
- Thu Feb 04, 2021 2:06 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Work
- Replies: 39
- Views: 1560
Work
If a negative amount of work is done what does that mean? for example is -344J more owrk than -122J and why?
- Thu Feb 04, 2021 2:05 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Textbook 4A.5
- Replies: 1
- Views: 118
Textbook 4A.5
Can someone explain how for part b of this question you get the equation w=-nRT lnV2/V1??
- Thu Feb 04, 2021 1:57 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Textbook 4A.3
- Replies: 1
- Views: 98
Textbook 4A.3
For this textbook question why us deltaU= w. WHy is q not taken into account?
- Thu Feb 04, 2021 1:24 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Entropy (residual)
- Replies: 3
- Views: 177
Entropy (residual)
What is the difference between positional(residual) entropy and just regular entropy or thermal entropy? And how is calculating them different?
- Wed Feb 03, 2021 11:04 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Constant pressure/ volume
- Replies: 11
- Views: 492
Constant pressure/ volume
Does constant pressure mean that volume is constant and does constant volume mean that pressure is constant? Why or why not?
- Wed Feb 03, 2021 10:40 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: deltaU
- Replies: 29
- Views: 933
deltaU
Can someone give the definition of and explain deltaU?
- Wed Feb 03, 2021 10:39 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Entropy
- Replies: 5
- Views: 358
Entropy
Can someone give the definition of and explain entropy?
- Thu Jan 28, 2021 8:42 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: percent ionization
- Replies: 7
- Views: 3706
percent ionization
What is the difference between percent protonation/deprotonation and percent ionization?
- Tue Jan 26, 2021 10:07 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Textbook 4e.9
- Replies: 1
- Views: 147
Textbook 4e.9
How do we know what bonds are broken in benzene to create resonance structures, and how do we do this problem?
- Tue Jan 26, 2021 10:02 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Textbook 4.31
- Replies: 1
- Views: 121
Textbook 4.31
Are we supposed to know how to convert from Torr to moles like we had to in 4.31? and if so how do you do this?
- Tue Jan 26, 2021 3:02 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Textbook 4d.15
- Replies: 6
- Views: 242
Re: Textbook 4d.15
Also how do you find those balanced equations?
- Tue Jan 26, 2021 3:01 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Textbook 4d.15
- Replies: 6
- Views: 242
Re: Textbook 4d.15
I thought when you are breaking bonds it is positive because it is gaining energy to break that bond?
- Tue Jan 26, 2021 2:52 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: deltaHc
- Replies: 3
- Views: 118
deltaHc
What is the c in deltaHc mean?
- Tue Jan 26, 2021 2:47 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Textbook 4d.15
- Replies: 6
- Views: 242
Textbook 4d.15
Can someone explain question 4d.15 in the textbook. The answer key has a bunch of balanced chemical equations and I'm confused where those came from or how to solve the problem?
- Mon Jan 25, 2021 7:26 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 6.19
- Replies: 2
- Views: 115
6.19
Is the lactic acid in this equation H30+?
- Mon Jan 25, 2021 5:28 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 6d.15 textbook
- Replies: 3
- Views: 151
6d.15 textbook
How are we supposed to know what the Ka is for part b, and how are we supposed to know that AlCl3 is Al(H20)6^3+?
- Mon Jan 25, 2021 12:21 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Exothermic rxn
- Replies: 9
- Views: 400
Exothermic rxn
How come in lecture Lavelle said that if a reaction is exothermic the change in heat is positive? If it is exothermic wouldn't heat be released which is a negative change?
- Mon Jan 25, 2021 10:43 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: percentage protonation
- Replies: 3
- Views: 154
percentage protonation
What is protonation vs. deprotonation
- Mon Jan 25, 2021 9:51 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Textbook 6D.5
- Replies: 2
- Views: 84
Textbook 6D.5
For question 6d.5 I am really confused on how to find the Kb. I thought that you change pka given to Ka and the divide (1*10^-14) by Ka to get Kb but that seems to be wrong?
- Thu Jan 21, 2021 12:18 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Textbook 5.61
- Replies: 3
- Views: 213
Textbook 5.61
6CO2+6H2O-->C6H12O6+is 6O2
How come increasing the partial pressure of O2(product) shifts the equilibrium to form reactant, but decreasing the partial pressure of reactant(CO2) will favor production of more reactants?
How come increasing the partial pressure of O2(product) shifts the equilibrium to form reactant, but decreasing the partial pressure of reactant(CO2) will favor production of more reactants?
- Wed Jan 20, 2021 10:06 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: neutral solution
- Replies: 9
- Views: 696
Re: neutral solution
But I thought that If [H30+]<10^-7 that means that the solution is basic not neutral because the pH would be above 7 and if the pH is above 7 then it is basic?
- Mon Jan 18, 2021 11:44 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: textbook question 5.35
- Replies: 2
- Views: 258
textbook question 5.35
In this question where do we get the values for Pa,Pb, and Pc
The textbook answer says they are (18/100),(5/100),&(10/100)
The textbook answer says they are (18/100),(5/100),&(10/100)
- Mon Jan 18, 2021 9:33 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: conjugate base
- Replies: 14
- Views: 506
conjugate base
Is the conjugate base of a weak acid a strong or weak base?
- Mon Jan 18, 2021 9:30 am
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: neutral solution
- Replies: 9
- Views: 696
neutral solution
What does it mean in lecture when professor Lavelle said, Note: if [H3O+]<10^-7 then solution is considered neutral because we know autoprotolysis generates 10^-7 mol.L-1 H3O+? Also what does it mean for it to be neutral?
- Sun Jan 17, 2021 2:19 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Pressure increased
- Replies: 5
- Views: 290
Pressure increased
How come when pressure is increased here reactants are favored? Aren't these moles the same on each side? H2O(g)+C(s)⇌H2(g)+CO(g)
- Thu Jan 14, 2021 2:02 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: K vs. Kc
- Replies: 1
- Views: 59
K vs. Kc
In the 5G.2 table in the textbook how do you know whether to use the K value or the Kc value?
- Thu Jan 14, 2021 1:22 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Gas
- Replies: 16
- Views: 653
Gas
How do we know if a gas is in bar or atm?
- Wed Jan 13, 2021 5:40 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Pressure vs. concentration
- Replies: 9
- Views: 273
Pressure vs. concentration
How do you know whether to write K for a gas as for example PCl2/PBr2 or [Cl2]/[Br2]
- Wed Jan 13, 2021 10:53 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Change in K (P&T)
- Replies: 9
- Views: 379
Change in K (P&T)
So I am a little confused as to whether pressure or temperature affect anything, because the notes say that K does not change but also mention that more products or reactants are created?
- Wed Jan 13, 2021 10:52 am
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Temperature
- Replies: 45
- Views: 1455
Temperature
How would we be asked whether a reaction favors products or reactants based on temperature?
- Wed Jan 13, 2021 10:44 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Pressure's effect on concentration
- Replies: 4
- Views: 156
Pressure's effect on concentration
"If pressure of reaction vessel is increased by adding inert gas then moles of reactant, product, and volume are constant. No change in R and P concentration and no effect on reaction Can someone explain this more in depth. I thought when pressure increases volume decreases and K becomes smalle...
- Wed Jan 13, 2021 10:38 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Change in volume
- Replies: 4
- Views: 215
Change in volume
In lecture is was mentioned that when v decreases and more moles of gas are on the left, then the reaction shifts right. Why would the reaction shift right cause wouln't this mean that there are more products than reactants than before so wouldn't it be left?
- Tue Jan 12, 2021 10:44 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Kc/x approximation
- Replies: 2
- Views: 128
Kc/x approximation
If Kc is very small how to approximate that x is very small? What does Kc have to do with x?
- Tue Jan 12, 2021 1:14 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Pressure, partial pressure, concentration
- Replies: 2
- Views: 113
Pressure, partial pressure, concentration
What is the difference between pressure, partial pressure, and concentration, and what are each exactly?
- Sun Jan 10, 2021 9:35 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: relationship between reaction, product, and K
- Replies: 7
- Views: 260
relationship between reaction, product, and K
If all the reactant's and product's moles are multiplied by 2 would that mean that K would be squared?
- Sun Jan 10, 2021 9:30 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 10^3-10^-3
- Replies: 2
- Views: 116
10^3-10^-3
So if K is between 10^3 or 10^-3 does this mean that the reaction just slightly favors products or reactants or does it mean that is doesn't favor either?
- Sun Jan 10, 2021 9:26 pm
- Forum: Ideal Gases
- Topic: Units for Pressure
- Replies: 41
- Views: 2586
Re: Units for Pressure
I agree, I think because Lavelle has only used atm we should be using atm as the units for pressure unless we learn otherwise.
- Sun Jan 10, 2021 9:22 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Le Chatelier's Principle
- Replies: 19
- Views: 1477
Le Chatelier's Principle
Can someone please explain Le Chatelier's principle completely, I am a little confused?
- Sun Jan 10, 2021 9:22 pm
- Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
- Topic: Le Chatelier's Principle
- Replies: 9
- Views: 577
Le Chatelier's Principle
Can someone please explain Le Chatelier's principle completely, I am a little confused?
- Sun Jan 10, 2021 9:03 pm
- Forum: Ideal Gases
- Topic: PV=nRT and concentration
- Replies: 27
- Views: 1628
Re: PV=nRT and concentration
n/V resembles moles/volume, n is the symbol for moles and V is the symbol for volume so together, n/v= molarity which is moles over volume.
- Sun Jan 10, 2021 9:01 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Q and K relationship
- Replies: 12
- Views: 597
Re: Q and K relationship
The result is to even out the products and reactants until the reaction reaches equilibrium.
- Sun Jan 10, 2021 9:00 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Q and K relationship
- Replies: 12
- Views: 597
Re: Q and K relationship
We know this because if q<K that means that the reactants are greater than the products than when it is in equilibrium, and this means that it will go towards the products until it reaches equilibrium. Also when q>k, products are greater than reactants than when at equilibrium so it will be the oppo...
- Tue Dec 08, 2020 12:58 pm
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: Textbook question 6C.17
- Replies: 3
- Views: 253
Textbook question 6C.17
In textbook question 6C.17 how are we supposed to know the pKb of the hypobromite ion and Morphine?
Re: Potassium
In cases of naming, it can be both. It just depends on if it's within the coordination sphere/ in the brackets or not. Usually, the ligand would have like a di-, tri-, tetra- prefix to indicate the number of ligands. But for example, K3[CoF6] is potassium-hexa-fluoro-cobaltate(III). The three potas...
Cl & Br3
How come chloride is Cl but Bromide is Br3?
Re: Chloride
Then how come Bromide is Br3?
Chloride
Why is chloride Cl and not Cl2?
Potassium
How would you know that Potassium is K3 not K?
- Sun Dec 06, 2020 3:43 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Table 9C.1
- Replies: 1
- Views: 98
Table 9C.1
Will we have to memorize Table 9C.1 for the final?
- Sun Dec 06, 2020 2:33 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final
- Replies: 6
- Views: 364
Re: Final
The friday before our midterm*
- Sun Dec 06, 2020 2:32 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final
- Replies: 6
- Views: 364
Final
Does anyone know if we're going to be learning new material up until the Friday of our midterm or when we will finishing learning all new material?
- Sun Dec 06, 2020 2:31 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: porphyrin ligand
- Replies: 3
- Views: 226
Re: porphyrin ligand
Does the porphyrin ligand refer to FeN4 or just N4?
- Sun Dec 06, 2020 2:30 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: tetradentate
- Replies: 8
- Views: 515
Re: tetradentate
So is tetradentate different than tetrahedron and square-planar complex?
- Sun Dec 06, 2020 1:53 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: porphyrin ligand
- Replies: 3
- Views: 226
porphyrin ligand
How do you know that porphyrin ligand is square planar and not tetrahedral?
- Sun Dec 06, 2020 1:51 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: tetradentate
- Replies: 8
- Views: 515
tetradentate
What does dentate stand for in tetradentate?
- Sun Dec 06, 2020 12:01 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Electronegativity/acidity
- Replies: 5
- Views: 333
Electronegativity/acidity
Can someone explain what electronegativity has to do with acidity?
- Sun Dec 06, 2020 12:00 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Ka, kb, kw
- Replies: 1
- Views: 143
Ka, kb, kw
Can someone explain the difference between Ka Kb and Kw?
- Sun Dec 06, 2020 12:00 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Ka, kb, kw
- Replies: 1
- Views: 190
Ka, kb, kw
Can someone explain the difference between Ka Kb and Kw?
- Sun Dec 06, 2020 11:58 am
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: pH and pOH
- Replies: 6
- Views: 434
pH and pOH
What is the difference between pH and pOH
- Tue Dec 01, 2020 12:45 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: 4 Ligands
- Replies: 3
- Views: 135
4 Ligands
How do you know if 4 ligands make a tetrahedral complex or a square-planar complex?
- Tue Dec 01, 2020 11:24 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Ligand
- Replies: 4
- Views: 190
Ligand
How is Cl a ligand or Lewis base? Since Cl has seven valence electrons if two of them were used in a coordinate covalent bond wouldn't it be a radical with 5 electrons left?
- Sun Nov 29, 2020 4:12 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar/Nonpolar
- Replies: 5
- Views: 376
Polar/Nonpolar
Why is CH2Cl2 Polar? Wouldn't the dipole moments of Cl and H cancel?
- Sun Nov 29, 2020 4:07 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: see-saw
- Replies: 6
- Views: 409
see-saw
what are the bond angles in a seesaw shape?
- Sun Nov 29, 2020 3:50 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Bent
- Replies: 9
- Views: 508
Bent
Is bent the same thing as angular?
- Fri Nov 27, 2020 2:42 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: I3-
- Replies: 2
- Views: 159
I3-
Why would I3- be linear? Since the central atom has multiple lone pairs wouldn't the repel the bonds and become bent or some other shape?
- Fri Nov 27, 2020 2:09 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: OClO
- Replies: 1
- Views: 117
OClO
Why is OClO trigonal planar and not tetrahedral since it has four places of electron density?
- Wed Nov 25, 2020 3:52 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: H2O VSEPR
- Replies: 27
- Views: 1346
H2O VSEPR
What would be the shape of H2O? Is it tetrahedral or Trigonal Pyramidal??
- Wed Nov 25, 2020 10:58 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Number of Ligands?
- Replies: 1
- Views: 161
Number of Ligands?
How do you know how many bonds transition metals, for example Nickel, need. Does it need to have an octet because in the example in Lecture 24 Nickel has 6 bonds and 12 valence electrons even the though on the periodic table nickel already has 10 valence electrons? Also do you know it is Nickel 2+ n...