Search found 101 matches

by Clarice Chui 2C
Sun Mar 15, 2020 7:56 am
Forum: First Order Reactions
Topic: order of a reaction
Replies: 2
Views: 71

order of a reaction

Can you tell what the order of a reaction is just by looking at it? If so, how?
by Clarice Chui 2C
Sun Mar 15, 2020 7:54 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: adding platinum
Replies: 8
Views: 94

adding platinum

How can you tell if a cell diagram needs an inert metallic component?
by Clarice Chui 2C
Sun Mar 15, 2020 7:52 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: spontaneity
Replies: 4
Views: 88

spontaneity

How do you know when the reaction is spontaneous to form either reactants or products?
by Clarice Chui 2C
Sun Mar 15, 2020 7:50 am
Forum: Phase Changes & Related Calculations
Topic: state functions
Replies: 9
Views: 186

state functions

What are state functions and what are not state functions?
by Clarice Chui 2C
Sun Mar 15, 2020 7:49 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: le chatelier's principle on temp
Replies: 2
Views: 116

le chatelier's principle on temp

What does the principle say about temperature? Like if it's endothermic or exothermic?
by Clarice Chui 2C
Sun Mar 08, 2020 11:34 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: intermediate species
Replies: 4
Views: 39

intermediate species

How do you determine what the intermediate species is?
by Clarice Chui 2C
Sun Mar 08, 2020 11:32 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: differential rate law to integrated rate law
Replies: 3
Views: 35

differential rate law to integrated rate law

Why is it useful/necessary to change a differential rate law to an integrated rate law?
by Clarice Chui 2C
Sun Mar 08, 2020 11:31 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: different explanation of method
Replies: 2
Views: 39

different explanation of method

In lecture we used an example of using the method of initial rates to determine k and n, but can someone describe in words how to use this method?
by Clarice Chui 2C
Sun Mar 08, 2020 5:40 pm
Forum: Second Order Reactions
Topic: half life
Replies: 6
Views: 30

half life

How does half life of a reaction relate to kinetics?
by Clarice Chui 2C
Mon Mar 02, 2020 4:35 pm
Forum: Balancing Redox Reactions
Topic: reversing the anode or cathode reaction [ENDORSED]
Replies: 5
Views: 171

reversing the anode or cathode reaction [ENDORSED]

How do you know when to reverse the reaction for the anode or the cathode? For reference I'm looking at the solution to 6L.3 part e.
by Clarice Chui 2C
Sun Mar 01, 2020 11:52 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: calomel electrode
Replies: 1
Views: 27

calomel electrode

What is a calomel electrode and what are some applications for one?
by Clarice Chui 2C
Sun Mar 01, 2020 2:34 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: finding n
Replies: 6
Views: 77

finding n

How do you find n from an equation for a reaction?
by Clarice Chui 2C
Sun Mar 01, 2020 2:17 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: salt bridge
Replies: 11
Views: 102

salt bridge

What is the purpose of a salt bridge?
by Clarice Chui 2C
Mon Feb 24, 2020 6:11 pm
Forum: Balancing Redox Reactions
Topic: 6K.3
Replies: 1
Views: 28

6K.3

For problem 6K.3, where did the 8 electrons come from on the balanced oxidation reaction?
by Clarice Chui 2C
Sat Feb 22, 2020 10:20 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: single line in cell diagram
Replies: 3
Views: 33

single line in cell diagram

If I'm looking at a typical picture of reaction in a galvanic cell, what would be the corresponding part to the single line(s) in a cell diagram?
by Clarice Chui 2C
Sat Feb 22, 2020 10:15 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: work and cell potential
Replies: 4
Views: 52

work and cell potential

What is the relationship between work and cell potential?
by Clarice Chui 2C
Sun Feb 16, 2020 1:22 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: signs of G with different values of K
Replies: 3
Views: 34

signs of G with different values of K

Why is delta G positive when K is less than one and vice versa?
by Clarice Chui 2C
Sun Feb 16, 2020 1:19 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: relationship between delta G and K
Replies: 2
Views: 32

relationship between delta G and K

What is the relationship between delta G and the equilibrium constant?
by Clarice Chui 2C
Wed Feb 12, 2020 11:26 am
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: 3/2R & 5/2R
Replies: 9
Views: 185

3/2R & 5/2R

Which is equation(s) would you be solving that uses Cv or Cp?
by Clarice Chui 2C
Wed Feb 12, 2020 10:51 am
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Reversible and irreversible
Replies: 3
Views: 37

Re: Reversible and irreversible

With a reversible pathway, the temperature is constant, volume increases, and pressure decreases. With a reversible process, you can use delta S= rev/T. There is more work done, which can be calculated using w= -nRTln(V2/V1). With an irreversible pathway, temperature will change (decrease then incre...
by Clarice Chui 2C
Tue Feb 11, 2020 10:28 am
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: entropy of irreversible path
Replies: 2
Views: 35

entropy of irreversible path

How do you calculate entropy for an irreversible path?
by Clarice Chui 2C
Sun Feb 09, 2020 9:45 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: conditions for free expansion?
Replies: 3
Views: 34

conditions for free expansion?

under what conditions does free expansion occur?
by Clarice Chui 2C
Sun Feb 09, 2020 9:42 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: heat capacities and enthalpy of phase changes
Replies: 2
Views: 21

heat capacities and enthalpy of phase changes

What is the relationship between heat capacity equation and enthalpy of phase change equations? Some questions don't give you, for example, the enthalpy of vaporization and liquid, so what do you do to calculate the enthalpy of of vaporization? Do you use the heat capacity equation?
by Clarice Chui 2C
Sun Feb 09, 2020 9:38 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: use for a calorimeter?
Replies: 2
Views: 32

use for a calorimeter?

What kinds of reactions would a calorimeter be used for?
by Clarice Chui 2C
Sun Feb 09, 2020 9:04 pm
Forum: Phase Changes & Related Calculations
Topic: closed vs isolated
Replies: 10
Views: 111

closed vs isolated

what is the difference between a closed system and an isolated system?
by Clarice Chui 2C
Fri Feb 07, 2020 4:45 pm
Forum: Phase Changes & Related Calculations
Topic: relationship between heat capacity and heating curve
Replies: 6
Views: 43

relationship between heat capacity and heating curve

The book says that the steeper the slope on a heating curve, the lower is the heat capacity. I'm having trouble understanding this concept, so can someone please explain it? Thanks!
by Clarice Chui 2C
Sun Feb 02, 2020 10:07 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Biological reactions
Replies: 1
Views: 30

Biological reactions

Why do biological reactions occur at a constant pressure?
by Clarice Chui 2C
Sun Feb 02, 2020 10:06 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: degeneracy
Replies: 7
Views: 52

degeneracy

What is the importance of degeneracy in relation to thermodynamics?
by Clarice Chui 2C
Sun Feb 02, 2020 10:02 pm
Forum: Calculating Work of Expansion
Topic: -PdeltaV
Replies: 2
Views: 15

-PdeltaV

Why is this equation negative?
by Clarice Chui 2C
Sun Feb 02, 2020 9:59 pm
Forum: Calculating Work of Expansion
Topic: Enthalpy
Replies: 5
Views: 29

Enthalpy

What does it mean to say that enthalpy is additive because it is a state function? I know this is Hess's Law, but I'm confused conceptually.
by Clarice Chui 2C
Sun Feb 02, 2020 9:57 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Steam burns
Replies: 8
Views: 71

Steam burns

Why, conceptually, does steam cause severe burns?
by Clarice Chui 2C
Sun Jan 26, 2020 8:50 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bond Enthalpies
Replies: 2
Views: 29

Re: Bond Enthalpies

I don't know if we'll ever have to calculate them, but so far he's given all of them to us.
by Clarice Chui 2C
Sun Jan 26, 2020 8:49 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bond Enthalpies
Replies: 3
Views: 24

Re: Bond Enthalpies

For all the examples, the H values were given, so I don't believe we'll be expected to find them unless we go over that later in the unit.
by Clarice Chui 2C
Sun Jan 26, 2020 8:47 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Method 3
Replies: 3
Views: 43

Re: Method 3

What does Method 3 mean/ how can it be used? In lecture Professor Lavelle said to only use it when bond enthalpies aren't available but the example he used was a bit confusing for me to understand now that I look back. Can someone please explain this to me? Thank you! Yes please and can someone bre...
by Clarice Chui 2C
Sun Jan 26, 2020 8:44 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Exothermic and Endothermic
Replies: 11
Views: 418

Re: Exothermic and Endothermic

When a reaction releases energy, or when it is exothermic, the value is negative. When the reaction absorbs energy, or is endothermic, the value is positive.
by Clarice Chui 2C
Sun Jan 26, 2020 8:43 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Hess's Law
Replies: 4
Views: 32

Re: Hess's Law

I believe it's just the first one.
by Clarice Chui 2C
Mon Jan 20, 2020 12:33 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Pressure changes
Replies: 7
Views: 49

Pressure changes

Let's say that the partial pressure of a reactant was increased. How do you use Le Chatelier's principle/reasoning to predict and understand what happens?
by Clarice Chui 2C
Mon Jan 20, 2020 12:30 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Osmotic pressure [ENDORSED]
Replies: 1
Views: 87

Osmotic pressure [ENDORSED]

What is the example of osmotic pressure that we need to know? It says we should know it on the chemical equilibrium outline.
by Clarice Chui 2C
Mon Jan 20, 2020 12:30 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ATP hydrolysis [ENDORSED]
Replies: 3
Views: 43

ATP hydrolysis [ENDORSED]

On the outline, it says to know the biological example of ATP hydrolysis for chemical equilibrium. What is this example?
by Clarice Chui 2C
Sat Jan 18, 2020 3:44 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Eq. constants & solubility
Replies: 3
Views: 48

Eq. constants & solubility

How do you use equilibrium constants to predict solubility?
by Clarice Chui 2C
Fri Jan 17, 2020 5:29 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: pH for weak acids
Replies: 5
Views: 235

pH for weak acids

Why do solutions of weak acids have higher pH values than solutions of strong acids at the
same concentration?
by Clarice Chui 2C
Sun Jan 12, 2020 9:44 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Concentration affecting equilibrium
Replies: 5
Views: 60

Concentration affecting equilibrium

How does changing concentration of the products affect an equilibrium reaction?
by Clarice Chui 2C
Sun Jan 12, 2020 9:39 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: "quick" way?
Replies: 4
Views: 55

"quick" way?

What did Dr. Lavelle mean by the "quick way" of using Le Chatelier's Principle and what is the long way?
by Clarice Chui 2C
Sat Jan 11, 2020 4:16 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Significance of principle
Replies: 6
Views: 52

Significance of principle

What is the significance of Le Chatelier's Principle? How does it also apply to changing physical parameters?
by Clarice Chui 2C
Sat Jan 11, 2020 3:23 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: finding change in concentration in ICE tables
Replies: 3
Views: 32

finding change in concentration in ICE tables

How do you figure out what the change in concentration is if you only have the initial concentration and the balanced equation? For instance, if you have the equation CO(g) + H2O(g) --> CO2(g) + H2(g) and the initial concentration of both of the reactants is 0.1M, how do you find the change in conce...
by Clarice Chui 2C
Fri Jan 10, 2020 12:31 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: using Kp vs Kc
Replies: 13
Views: 101

using Kp vs Kc

If all the reactants and products are in the gas phase, do you have to use Kp? Or can you use Kc?
by Clarice Chui 2C
Sat Dec 07, 2019 6:43 pm
Forum: Properties of Light
Topic: relationship between frequency and intensity?
Replies: 3
Views: 139

relationship between frequency and intensity?

What is the relationship between frequency and intensity?
by Clarice Chui 2C
Sat Dec 07, 2019 6:36 pm
Forum: Biological Examples
Topic: Final
Replies: 6
Views: 168

Re: Final

Naji Sarsam 4G wrote:The hydrogen bonding od DNA Base pairs, heme as a coordination compound, cisplatin for chemotherapy, vitamins as acceptors of dangerous radicals, the role of carbon dioxide in blood ph

These are the examples i can think of


can you elaborate on the vitamins?
by Clarice Chui 2C
Sat Dec 07, 2019 6:33 pm
Forum: Biological Examples
Topic: chelating
Replies: 2
Views: 49

chelating

can you tell if a compound is a chelate just by looking at it?
by Clarice Chui 2C
Sat Dec 07, 2019 6:30 pm
Forum: Hybridization
Topic: hybridization of lone pairs
Replies: 1
Views: 93

hybridization of lone pairs

how do you find hybridization of lone pairs?
by Clarice Chui 2C
Sat Dec 07, 2019 4:57 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: example of dipole induced dipole
Replies: 1
Views: 90

example of dipole induced dipole

Hi! Can someone please explain dipole induced dipole and how it's different from other forces along with an example?
by Clarice Chui 2C
Sun Dec 01, 2019 6:25 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Relative acidity
Replies: 7
Views: 179

Relative acidity

What are the properties that determine how strong an acid is? Why is HI a stronger acid than HF?
by Clarice Chui 2C
Sun Dec 01, 2019 6:22 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: equation breakdown
Replies: 2
Views: 30

equation breakdown

Can someone please explain all the parts of the pH equation?
by Clarice Chui 2C
Sun Dec 01, 2019 6:04 pm
Forum: Biological Examples
Topic: EDTA
Replies: 3
Views: 83

EDTA

What is the biological significance of EDTA?
by Clarice Chui 2C
Sun Dec 01, 2019 5:52 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: coordination compound
Replies: 1
Views: 28

Re: coordination compound

If a compound is outside of the coordination sphere, that means that that compound is not directly attached to the metal or central atom. When drawing, do not attach the compound to the central atom.
by Clarice Chui 2C
Sun Dec 01, 2019 5:37 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Chelate and polydentate
Replies: 2
Views: 57

Re: Chelate and polydentate

Relating to the chelate part of your question, a chelate is a complex containing a ligand that forms a ring of atoms that includes the central metal atom. Chelating ligands bind cations tightly and are significant in nature especially. For example, the book discusses how chelating ligands lie behind...
by Clarice Chui 2C
Sun Nov 24, 2019 8:52 pm
Forum: Biological Examples
Topic: Heme complex and biological significance
Replies: 2
Views: 39

Heme complex and biological significance

What is a heme complex? What is the biological significance of heme complexes?
by Clarice Chui 2C
Sun Nov 24, 2019 8:44 pm
Forum: Biological Examples
Topic: Biological Significance
Replies: 3
Views: 64

Re: Biological Significance

Transition metals have many oxidation states, so they are good for electron transfer.
by Clarice Chui 2C
Sun Nov 24, 2019 8:38 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Ligands
Replies: 5
Views: 77

Re: Ligands

In order to find the oxidation state of a transition metal, find the charges of the atoms around the central atom. Whatever those charges add up to, subtract that from the formal charge of the molecule as a whole. So for example if the formal charge of the molecule was neutral and the surrounding at...
by Clarice Chui 2C
Sun Nov 24, 2019 8:33 pm
Forum: Lewis Acids & Bases
Topic: Lewis acids + bases and Bronsted acids + bases
Replies: 6
Views: 89

Lewis acids + bases and Bronsted acids + bases

What is the difference between Lewis acids + bases and Bronsted acids + bases?
by Clarice Chui 2C
Sun Nov 24, 2019 8:29 pm
Forum: Naming
Topic: Meaning of Cis and Trans
Replies: 11
Views: 146

Re: Meaning of Cis and Trans

Cis means that the electronegative atoms around the central atom are all on the same side. This means it’s polar. Trans means that the atoms around the central atom are opposite each other, making it symmetrical and nonpolar. Cisplatin is a well-known chemotherapy drug that forms a coordination comp...
by Clarice Chui 2C
Mon Nov 18, 2019 9:43 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Determining the greater boiling point
Replies: 4
Views: 73

Determining the greater boiling point

When trying to find which molecule has a greater boiling point, which factors should be considered first/weighted the most in solving? Electronegativity? Molar mass/size? Etc?
by Clarice Chui 2C
Sun Nov 17, 2019 4:53 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 7th edition 2E #5 clarification
Replies: 2
Views: 28

Re: 7th edition 2E #5 clarification

Hi! Okay so there are only two leftover electrons because the molecule has a +1 charge. Cl is therefore surrounded by 3 "things," aka regions of electron density (one for each double bond to oxygen and one for the lone pair on Cl). The lone pair on Cl makes it trigonal planar. Hope that cl...
by Clarice Chui 2C
Sun Nov 17, 2019 4:49 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 2E.19 b
Replies: 2
Views: 32

2E.19 b

b) (CH3)2Be
I drew the Lewis structure no problem, but why is the shape tetrahedral?
by Clarice Chui 2C
Sun Nov 17, 2019 4:46 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 2E. 11
Replies: 2
Views: 36

Re: 2E. 11

a) AX4E
- seesaw

b) AX3E2
- T-shaped

c) AX4E2
- square planar

d) AX3E
- trigonal pyramidal
by Clarice Chui 2C
Sun Nov 17, 2019 4:42 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 2E. 7
Replies: 1
Views: 33

Re: 2E. 7

a) The shape is trigonal pyramidal because there are four regions of electron density. 3 of those are bonds between atoms and the fourth is a lone pair. b) All the OSCl angles are the same because the lone pair pushes away the bonded pairs equally. c) the angles are >109.5
by Clarice Chui 2C
Tue Nov 12, 2019 11:16 am
Forum: Dipole Moments
Topic: London forces
Replies: 4
Views: 34

London forces

Why do London forces act between all molecules rather than just between nonpolar molecules?
by Clarice Chui 2C
Sun Nov 10, 2019 9:22 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Strengths of bonds
Replies: 3
Views: 52

Re: Strengths of bonds

Another factor that affects bond strength is delocalization (related to resonance as said above).
by Clarice Chui 2C
Sun Nov 10, 2019 9:17 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Electron distortion
Replies: 4
Views: 45

Electron distortion

So electron distortion is proportional to the polarizability of electrons. What does electron distortion really mean?
by Clarice Chui 2C
Sun Nov 10, 2019 9:12 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Relationship between size of atom and bond strength
Replies: 2
Views: 21

Relationship between size of atom and bond strength

So in lecture we talked about how larger atoms/ atoms with higher molar mass have stronger attractive interactions, so does that help explain why, for example, F subscript 2 is a gas at room temp while I subscript 2 is a solid? The bigger the atom --> the stronger the bond --> the more solid it is a...
by Clarice Chui 2C
Sun Nov 03, 2019 11:12 pm
Forum: Lewis Structures
Topic: central atom
Replies: 16
Views: 1442

Re: central atom

Also, Hydrogen will never be the central atom just fyi!
by Clarice Chui 2C
Sun Nov 03, 2019 10:32 pm
Forum: Trends in The Periodic Table
Topic: Electron affinity vs electronegativity
Replies: 7
Views: 91

Electron affinity vs electronegativity

What is the difference between electron affinity and electronegativity?
by Clarice Chui 2C
Sun Nov 03, 2019 10:10 pm
Forum: Quantum Numbers and The H-Atom
Topic: Formal names for each letter
Replies: 5
Views: 172

Formal names for each letter

Does anyone have an easy way to remember the full names for n, l, and ml?
by Clarice Chui 2C
Sun Nov 03, 2019 10:05 pm
Forum: DeBroglie Equation
Topic: Does something have wavelike properties?
Replies: 3
Views: 57

Re: Does something have wavelike properties?

^ yes I believe anything less than that would be undetectable and too small to be considered having wave-like properties.
by Clarice Chui 2C
Sun Nov 03, 2019 10:00 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Easier way to calculate/remember?
Replies: 7
Views: 208

Easier way to calculate/remember?

Is there an easier way to calculate this/remember it/shortcut?
by Clarice Chui 2C
Sun Oct 27, 2019 9:33 pm
Forum: Lewis Structures
Topic: Hybridization
Replies: 2
Views: 28

Hybridization

What is hybridization of the central atom?
by Clarice Chui 2C
Sun Oct 27, 2019 9:32 pm
Forum: Lewis Structures
Topic: VSEPR: E in AXE
Replies: 2
Views: 23

VSEPR: E in AXE

What does the E stand for in AXE?
by Clarice Chui 2C
Sun Oct 27, 2019 9:29 pm
Forum: Bond Lengths & Energies
Topic: bond lengths for single or double bonds
Replies: 7
Views: 64

Re: bond lengths for single or double bonds

Triple bonds are shorter than both double bonds and single bonds, but they are stronger than both of those. Single bonds are longer than both double and triple bonds, but are also weaker than both of those.
by Clarice Chui 2C
Sun Oct 27, 2019 9:23 pm
Forum: Lewis Structures
Topic: Choosing the central atom
Replies: 16
Views: 202

Re: Choosing the central atom

He also mentioned that hydrogen will never be the central atom. Just something to remember!
by Clarice Chui 2C
Sun Oct 27, 2019 9:21 pm
Forum: Trends in The Periodic Table
Topic: Electronegativity vs. effective nuclear charge
Replies: 5
Views: 67

Electronegativity vs. effective nuclear charge

What is the difference between electronegativity and effective nuclear charge?
by Clarice Chui 2C
Sun Oct 20, 2019 9:56 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Exceptions
Replies: 2
Views: 19

Exceptions

So i know the exceptions to normal electron configuration, but why are these elements structured the way they are?
by Clarice Chui 2C
Sun Oct 20, 2019 9:46 pm
Forum: Quantum Numbers and The H-Atom
Topic: Stern & Gerlach Experiment
Replies: 3
Views: 72

Re: Stern & Gerlach Experiment

^ Just to add, m sub s can either be +1/2 or -1/2. If it is positive, the electron is spin up and if it is negative, the electron is spin down.
by Clarice Chui 2C
Sun Oct 20, 2019 9:38 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Planes
Replies: 3
Views: 32

Planes

When an electron is located in specific planes, what does that mean?
by Clarice Chui 2C
Sun Oct 20, 2019 9:22 pm
Forum: Quantum Numbers and The H-Atom
Topic: M Value
Replies: 3
Views: 47

Re: M Value

To add, there are 2l + 1 different values for m sub l.
by Clarice Chui 2C
Sun Oct 20, 2019 9:06 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Incorrect atomic model example
Replies: 3
Views: 50

Incorrect atomic model example

The example from lecture resulted in the velocity of the electron being greater than the speed of light. Obviously this is not possible, but what does that unrealistic answer tell us about the electron? Something about being localized at the nucleus?
by Clarice Chui 2C
Sun Oct 13, 2019 10:24 pm
Forum: DeBroglie Equation
Topic: Diffraction
Replies: 4
Views: 65

Diffraction

What exactly is diffraction?
by Clarice Chui 2C
Sun Oct 13, 2019 10:22 pm
Forum: DeBroglie Equation
Topic: Context for this equation
Replies: 1
Views: 39

Context for this equation

Can someone give a little for context for when to actually use this equation?
by Clarice Chui 2C
Sun Oct 13, 2019 10:18 pm
Forum: Properties of Electrons
Topic: Energy levels
Replies: 4
Views: 68

Energy levels

In reference to electrons being excited and jumping to higher energy levels, is there a specific number of levels each element has? Or is the number of energy levels infinite?
by Clarice Chui 2C
Sun Oct 13, 2019 8:50 pm
Forum: Properties of Light
Topic: Frequency vs. Intensity
Replies: 4
Views: 35

Frequency vs. Intensity

Can someone clearly differentiate between intensity and frequency?
by Clarice Chui 2C
Sun Oct 13, 2019 2:14 pm
Forum: Properties of Light
Topic: Threshold Energy
Replies: 2
Views: 43

Threshold Energy

Why does threshold energy/work function differ?
by Clarice Chui 2C
Thu Oct 03, 2019 9:02 pm
Forum: SI Units, Unit Conversions
Topic: Kelvin, Celsius, & Fahrenheit Conversions
Replies: 3
Views: 51

Kelvin, Celsius, & Fahrenheit Conversions

What are the conversions between Kelvin, Celsius, and Fahrenheit again?
by Clarice Chui 2C
Thu Oct 03, 2019 8:54 pm
Forum: SI Units, Unit Conversions
Topic: unit conersations
Replies: 7
Views: 143

Re: unit conersations

As long as you remain consistent with units throughout your work and the problem doesn't explicitly ask for a specific unit of measure, it shouldn't matter.
by Clarice Chui 2C
Thu Oct 03, 2019 8:51 pm
Forum: Limiting Reactant Calculations
Topic: Percent yields/error
Replies: 3
Views: 84

Re: Percent yields/error

So just to clarify, the higher the percent yield, the better? That means that the actual yield is close to the theoretical right?
by Clarice Chui 2C
Thu Oct 03, 2019 6:36 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Actual Yield vs Theoretical Yield
Replies: 6
Views: 131

Re: Actual Yield vs Theoretical Yield

Some reasons for this are side reactions, impurities, some compound sticking to the side of the equipment it's in, human error in measurements.

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