Search found 103 matches

by Kaylee Clarke 1G
Sat Mar 14, 2020 11:52 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Arrhenius Equation
Replies: 3
Views: 11

Re: Arrhenius Equation

the Arrhenius equation is used to find the effect that changing of temperature in a reaction has on the rate constant
by Kaylee Clarke 1G
Sat Mar 14, 2020 11:49 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: n in NFE
Replies: 19
Views: 63

Re: n in NFE

n is referring the electrons transferred after balancing the half-reaction!
by Kaylee Clarke 1G
Sat Mar 14, 2020 11:48 am
Forum: Second Order Reactions
Topic: Derivations of Reactions
Replies: 3
Views: 11

Re: Derivations of Reactions

I don't believe that we need to know how to derive the equations. the equations that are important should be on the formula sheet but will not be individually labelled.
by Kaylee Clarke 1G
Sat Mar 14, 2020 11:44 am
Forum: Environment, Ozone, CFCs
Topic: final thoughts
Replies: 2
Views: 26

final thoughts

what is important to know about the environment, ozone, etc for the final?
by Kaylee Clarke 1G
Sat Mar 14, 2020 11:41 am
Forum: General Rate Laws
Topic: Average rate vs unique rate
Replies: 4
Views: 27

Re: Average rate vs unique rate

referring to the aforementioned appearance/disappearance of substances, are you referring to intermediate substances? if not, what are the substances?
by Kaylee Clarke 1G
Sat Mar 14, 2020 11:37 am
Forum: First Order Reactions
Topic: k versus k prime
Replies: 6
Views: 24

Re: k versus k prime

k prime refers to the reverse reaction while k refers to the forward reaction!
by Kaylee Clarke 1G
Sat Mar 14, 2020 11:27 am
Forum: Zero Order Reactions
Topic: zero order reactions
Replies: 5
Views: 17

zero order reactions

how do you identify a zero order reaction?
by Kaylee Clarke 1G
Sat Mar 14, 2020 11:22 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: inert gases
Replies: 6
Views: 55

Re: inert gases

what of the elements such as platinum that seem to be attached to a cell diagram?
by Kaylee Clarke 1G
Fri Mar 13, 2020 6:35 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: relationship to cell potential
Replies: 2
Views: 22

relationship to cell potential

how would you explain the relationship between cell potential and work in words? and, for cell potential and free energy?
by Kaylee Clarke 1G
Fri Mar 13, 2020 6:24 pm
Forum: Balancing Redox Reactions
Topic: intensive and extensive
Replies: 3
Views: 15

intensive and extensive

what makes a property intensive or extensive?
by Kaylee Clarke 1G
Fri Mar 13, 2020 6:23 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: electrochemical series
Replies: 4
Views: 24

electrochemical series

in the outline, it mentions an electrochemical series. what is that referring to?
by Kaylee Clarke 1G
Fri Mar 13, 2020 5:19 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: factors of Gibbs free energy
Replies: 2
Views: 13

factors of Gibbs free energy

why is reaction free energy dependent on pressure and the equilibrium constant?
by Kaylee Clarke 1G
Fri Mar 13, 2020 4:49 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: relationship between entropy and enthalpy
Replies: 2
Views: 18

relationship between entropy and enthalpy

how ∆S is related to ∆H for a change at constant temperature and pressure?
by Kaylee Clarke 1G
Fri Mar 13, 2020 4:30 pm
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: 3rd law
Replies: 3
Views: 17

3rd law

what exactly is the third law of thermodynamics ?
by Kaylee Clarke 1G
Thu Mar 05, 2020 11:12 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: same solutions in cell diagram
Replies: 2
Views: 28

same solutions in cell diagram

when you are writing a cell diagram like they have you do in the homework, when do you know that a molecule is in the same solution? and whenever it is in the same solution, it is written with the commas rather than the (|) and includes a inert gas correct?
by Kaylee Clarke 1G
Thu Mar 05, 2020 11:09 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: inert gases
Replies: 6
Views: 55

inert gases

when do you include an inert gas in the cell diagram? and why is it only for one side (cathode or anode) or on both the cathode and anode?
by Kaylee Clarke 1G
Sat Feb 22, 2020 4:34 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: E cell
Replies: 6
Views: 39

Re: E cell

there is an equation for E cell to solve but there will be information to find the variables in the equation.
by Kaylee Clarke 1G
Sat Feb 22, 2020 4:26 pm
Forum: Balancing Redox Reactions
Topic: Redox in Acid/ Basic Solutions
Replies: 8
Views: 44

Re: Redox in Acid/ Basic Solutions

the difference in acid or basic solutions is based on whether the situation calls for oxidation or reduction. In the case of reduction, the product will include a H+ but for oxidation it is OH-. the acronym OILRIG helps. oxidation is losing and reduction is gaining
by Kaylee Clarke 1G
Sat Feb 22, 2020 4:19 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Adding Inert Gas
Replies: 20
Views: 135

Re: Adding Inert Gas

adding an inert gas does not change the equilibrium constant for a system, but it will affect the pressure
by Kaylee Clarke 1G
Sat Feb 22, 2020 4:15 pm
Forum: Phase Changes & Related Calculations
Topic: Van't Hoff Eq
Replies: 8
Views: 77

Re: Van't Hoff Eq

I don't believe it is necessary to understand how to derive for the equation.
by Kaylee Clarke 1G
Sat Feb 22, 2020 4:14 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: n in -nFE
Replies: 14
Views: 166

Re: n in -nFE

n is the number of electrons transferred
by Kaylee Clarke 1G
Tue Feb 11, 2020 10:51 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: adiabatic
Replies: 19
Views: 113

adiabatic

what is an adiabatic process?
by Kaylee Clarke 1G
Mon Feb 10, 2020 7:14 pm
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: degeneracy W
Replies: 7
Views: 62

degeneracy W

what does the n subscript represent in degeneracy? I have seen it as Avogadro's number or as the amount of moles..
by Kaylee Clarke 1G
Mon Feb 10, 2020 7:10 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: equations
Replies: 2
Views: 28

equations

based on the lecture notes I have, the change in entropy equations from degeneracy and volume seem to be equivalent. ∆S= kbln(W2/W1) and ∆S= kbln(V2/V1) is what I have written... is this true?
by Kaylee Clarke 1G
Mon Feb 10, 2020 2:50 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: equipartition theorem
Replies: 2
Views: 33

equipartition theorem

What exactly is the equipartition theorem? and how do you apply the corresponding constants properly?
by Kaylee Clarke 1G
Mon Feb 10, 2020 12:57 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: extensive and intensive
Replies: 1
Views: 16

extensive and intensive

Is heat capacity an extensive property and if so, why? Also, is specific heat capacity an intensive property and if so, why?
by Kaylee Clarke 1G
Sun Feb 09, 2020 8:55 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Le Chatelier's Principle
Replies: 5
Views: 19

Le Chatelier's Principle

when you are expanding a gaseous mixture, what is an indication of which side of the reaction is favored? What is the role of the amount of moles in the reactant and product side?
by Kaylee Clarke 1G
Sun Feb 09, 2020 8:14 pm
Forum: Ideal Gases
Topic: reversing reactions
Replies: 14
Views: 75

reversing reactions

what happens to K when you reverse a reaction?
by Kaylee Clarke 1G
Thu Jan 30, 2020 10:21 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: hess's law
Replies: 13
Views: 56

hess's law

when using hess's law and cancelling out the data, does it matter if a molecule is on the product or reactant side to cancel with another? I know that they must have the same moles to cancel, but do they have to be on opposite sides of the reaction equation?
by Kaylee Clarke 1G
Wed Jan 29, 2020 4:45 pm
Forum: Ideal Gases
Topic: non ideal gases
Replies: 8
Views: 46

Re: non ideal gases

ideal gases are for the purpose of creating a problem, gases are usually non ideal
by Kaylee Clarke 1G
Wed Jan 29, 2020 4:40 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: System vs Surroundings
Replies: 14
Views: 391

Re: System vs Surroundings

the system is were the chemical reaction would usually occur. I don't recall Professor Lavelle mentioning needing to memorize systems and surroundings.
by Kaylee Clarke 1G
Wed Jan 29, 2020 4:37 pm
Forum: Lewis Acids & Bases
Topic: Lewis acid and bases
Replies: 5
Views: 54

Re: Lewis acid and bases

Lewis acids donate a proton (Hplus) and Lewis bases accept a proton.
by Kaylee Clarke 1G
Wed Jan 29, 2020 4:36 pm
Forum: Calculating Work of Expansion
Topic: expansion vs nonexpansion
Replies: 5
Views: 32

Re: expansion vs nonexpansion

expansion work is done on its surroundings, and is affected by external pressure. but, non-expansion work occurs in a closed system without outside influence
by Kaylee Clarke 1G
Wed Jan 29, 2020 4:31 pm
Forum: Phase Changes & Related Calculations
Topic: Why does steam cause burns?
Replies: 29
Views: 151

Re: Why does steam cause burns?

steam causes burns because there is a phase change of water as it makes contact with your skin, which causes a greater release of energy than boiling water that has a constant energy
by Kaylee Clarke 1G
Wed Jan 29, 2020 4:29 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Exothermic and Endothermic
Replies: 11
Views: 49

Re: Exothermic and Endothermic

the different in the sign values is a result of the action that occurs. so, for exothermic, since it releases heat, it will be negative. and because endothermic absorbs heat, it will be positive.
by Kaylee Clarke 1G
Tue Jan 21, 2020 5:29 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Acids and Bases
Replies: 7
Views: 32

Re: Acids and Bases

There are a small amount of strong acids and bases that you should have memorized. Otherwise, acids are proton donors and usually produce hydronium. Bases are proton acceptors and produce hydroxide.
by Kaylee Clarke 1G
Tue Jan 21, 2020 5:27 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: using K
Replies: 5
Views: 27

Re: using K

Kp is used for partial pressure and Kc is for equilibrium in a general sense.
by Kaylee Clarke 1G
Tue Jan 21, 2020 5:25 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 5% approximation rule
Replies: 5
Views: 47

Re: 5% approximation rule

Dr.Lavelle said it is 10^-3.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:44 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: effects on pH
Replies: 7
Views: 39

Re: effects on pH

Group 1/2 cations are considered spectator ions and therefore are insignificant.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:40 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Q and K
Replies: 8
Views: 110

Re: Q and K

K is the reaction at equilibrium. Q is the reaction at any point. K greater than Q is a forward reaction. Q greater than K is a reverse reaction.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:37 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Pressure changes
Replies: 7
Views: 33

Re: Pressure changes

I think of it like this. You want the products and reactants to be equal, hence equilibrium. So, if one side increases, the reaction shifts to the other side so that it may find equilibrium again.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:32 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: units for pressure
Replies: 5
Views: 185

Re: units for pressure

I went to Lyndons workshop and he said because the values are very similar that either should be okay. Just to be consistent with the values throughout the problem.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:31 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Reaction Quotient
Replies: 10
Views: 248

Re: Reaction Quotient

K is the reaction at equilibrium and Q occurs at any point in the reaction. When q<K, it is a forward reaction and the opposite is a reverse reaction.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:27 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Kc vs K
Replies: 7
Views: 29

Re: Kc vs K

K is indicative of equilibrium and can be used with many subscripts. So, K can be applied to many equilibrium forms but Kc is simply the equilibrium constant.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:24 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Checking the approximation of "x"
Replies: 4
Views: 23

Re: Checking the approximation of "x"

Because the value of x considerably small, I believe that the coefficient is insignificant because it has little effect on the value of x.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:22 am
Forum: Ideal Gases
Topic: Acid and Bases
Replies: 16
Views: 84

Re: Acid and Bases

The scale of pH is 0 to 14. Anything below 7 is acidic and anything above is basic. 7 is neutral. These numbers can be obtained through the use of molarity in the pH=-log(x) formula
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:19 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Approximation
Replies: 6
Views: 17

Re: Approximation

Anything equal to or less than 10^-3 is considered by Lavelle as small.
by Kaylee Clarke 1G
Tue Jan 21, 2020 11:18 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Difference in PH between strong and weak acids
Replies: 11
Views: 64

Re: Difference in PH between strong and weak acids

The strong acids have a lower pH because they fully dissociate and have a lower hydronium concentration. Weak acids are the opposite.
by Kaylee Clarke 1G
Wed Jan 15, 2020 12:13 pm
Forum: Ideal Gases
Topic: bars vs atm
Replies: 8
Views: 48

bars vs atm

what is the difference of units in bars vs atm? which should we be using for solving problems?
by Kaylee Clarke 1G
Wed Jan 15, 2020 12:11 pm
Forum: Ideal Gases
Topic: equilibrium constant
Replies: 5
Views: 35

equilibrium constant

I am confused about the exact function of the K constant value. Does K represent equilibrium in a general sense and then from there the subscript represents the type of equilibrium we are trying to acquire?
by Kaylee Clarke 1G
Sat Dec 07, 2019 4:07 pm
Forum: Air Pollution & Acid Rain
Topic: acid rain
Replies: 1
Views: 55

acid rain

what is the significance acid rain? what was said in the lecture about it?
by Kaylee Clarke 1G
Sat Dec 07, 2019 2:15 pm
Forum: Dipole Moments
Topic: summarize dipole dipole moments
Replies: 1
Views: 40

summarize dipole dipole moments

im still a little confused about dipole dipole moments and I was confirm that this information is correct. dipole dipole moments occur when the partial charge does not cancel and only the same elements can cancel one another.. but that is also affects by molecular geometry because if the lone pair p...
by Kaylee Clarke 1G
Sat Dec 07, 2019 1:59 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: atomic spectrum [ENDORSED]
Replies: 1
Views: 66

atomic spectrum [ENDORSED]

how do you apply the atomic spectrum to a problem in real life situations like they have done in the textbook?
by Kaylee Clarke 1G
Fri Dec 06, 2019 3:08 pm
Forum: Biological Examples
Topic: biological significance
Replies: 2
Views: 41

biological significance

what are things of biological significance that we should know for the final?
by Kaylee Clarke 1G
Fri Dec 06, 2019 2:53 pm
Forum: Biological Examples
Topic: Roman numerals
Replies: 1
Views: 19

Roman numerals

what is the formal for finding the Roman numeral for a coordination compound name?
by Kaylee Clarke 1G
Fri Dec 06, 2019 2:11 pm
Forum: Biological Examples
Topic: Roman numerals
Replies: 1
Views: 15

Roman numerals

what is the formal for finding the Roman numeral for a coordination compound name?
by Kaylee Clarke 1G
Fri Dec 06, 2019 1:58 pm
Forum: Biological Examples
Topic: overall stability constant
Replies: 1
Views: 32

overall stability constant

for K(a), I understand the it is the product/ [reactant][reactant]. but where does the numerical value come from? how do you use the equation to find the numerical value?
by Kaylee Clarke 1G
Fri Dec 06, 2019 12:31 am
Forum: Determining Molecular Shape (VSEPR)
Topic: polarizability
Replies: 4
Views: 66

polarizability

do London dispersion forces have high polarizability?
by Kaylee Clarke 1G
Fri Dec 06, 2019 12:29 am
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: finding molarity
Replies: 4
Views: 37

Re: finding molarity

Molarity of an acid and base is the same as molarity of any solution, which we learned about in the beginning of the quarter. It is simply the number of moles of solute divided by the total volume of the solution. However, for acids and bases specifically, we need to know how normal molarity relate...
by Kaylee Clarke 1G
Thu Dec 05, 2019 4:46 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: finding molarity
Replies: 4
Views: 37

finding molarity

how do you find the molarity of an acid or base? is molarity what is used to find the pH, and resulting pOH?
by Kaylee Clarke 1G
Sun Nov 24, 2019 11:45 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Seesaw shape
Replies: 5
Views: 33

Re: Seesaw shape

seesaw has 5 regions of electron density with one lone pair and four bonded pairs
by Kaylee Clarke 1G
Sun Nov 24, 2019 11:44 pm
Forum: Hybridization
Topic: unused orbitals
Replies: 4
Views: 31

Re: unused orbitals

it is not a part of the hydride orbital so you would not include it in the hybridized orbital
by Kaylee Clarke 1G
Sun Nov 24, 2019 11:40 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: T-shape
Replies: 21
Views: 162

Re: T-shape

T-shape is with five regions of electron density, 2 lone pairs and 3 bonding pairs
by Kaylee Clarke 1G
Sun Nov 24, 2019 11:38 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: AXE Format
Replies: 34
Views: 168

Re: AXE Format

just writing the X and the E is good enough
by Kaylee Clarke 1G
Sun Nov 17, 2019 5:15 pm
Forum: SI Units, Unit Conversions
Topic: Memorizing Conversions
Replies: 23
Views: 281

Re: Memorizing Conversions

you should know the common ones because they will not ne given
by Kaylee Clarke 1G
Sun Nov 17, 2019 5:11 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: linear versus angular
Replies: 5
Views: 37

Re: linear versus angular

A compound seems to be bent when there is a lone pair on the central atom because the lone pair repulse the bonding pairs and sightly displace them.
by Kaylee Clarke 1G
Sun Nov 17, 2019 5:07 pm
Forum: Electronegativity
Topic: determining electronegativity
Replies: 4
Views: 51

Re: determining electronegativity

the periodic trend of electronegativity is increasing up and to the right of the PT
by Kaylee Clarke 1G
Sun Nov 17, 2019 5:04 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: geometric angles
Replies: 4
Views: 23

Re: geometric angles

In the shapes without lone pairs, the angles are fairly simple; usually the 360 divided by the amount of elements bonding.. when there is a lone pair on the central atom, that changes. The angles of the structures will vary as a result of the new high electron density region
by Kaylee Clarke 1G
Sun Nov 17, 2019 5:01 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Repulsion
Replies: 6
Views: 41

Re: Repulsion

lone pairs have the highest repulsion, then lone-bonding, and bonding-bonding have the lowest repulsion
by Kaylee Clarke 1G
Sun Nov 10, 2019 6:29 pm
Forum: Dipole Moments
Topic: Temporary Dipole Moment
Replies: 3
Views: 21

Re: Temporary Dipole Moment

Dipole moments display the polarity of a molecule; when one element has a greater charger, than the others, it is most polar and is a dipole moment.
by Kaylee Clarke 1G
Sun Nov 10, 2019 6:22 pm
Forum: Lewis Structures
Topic: Electronegative
Replies: 14
Views: 79

Re: Electronegative

the periodic table trend of electronegativity is increasing up and to the right
by Kaylee Clarke 1G
Sun Nov 10, 2019 6:18 pm
Forum: Octet Exceptions
Topic: Reasoning for Octet Exception
Replies: 11
Views: 102

Re: Reasoning for Octet Exception

expanded octets occur in period 3 and below but they are most common in phosphorus, sulfur, and chlorine.
by Kaylee Clarke 1G
Sun Nov 10, 2019 6:15 pm
Forum: Dipole Moments
Topic: Dipole Moment
Replies: 6
Views: 35

Re: Dipole Moment

a dipole moment occurs when a electron has a higher charger and so that electron is favored over another
by Kaylee Clarke 1G
Wed Nov 06, 2019 1:22 pm
Forum: Bond Lengths & Energies
Topic: speed of electromagnetic radiation
Replies: 2
Views: 30

speed of electromagnetic radiation

how does wavelength and frequency affect the speed of electromagnetic radiation?
by Kaylee Clarke 1G
Sun Nov 03, 2019 10:06 pm
Forum: DeBroglie Equation
Topic: Does something have wavelike properties?
Replies: 3
Views: 45

Re: Does something have wavelike properties?

any above 10^-15 m has wavelike properties
by Kaylee Clarke 1G
Sun Nov 03, 2019 10:04 pm
Forum: Quantum Numbers and The H-Atom
Topic: Rules for n, l,m
Replies: 11
Views: 91

Re: Rules for n, l,m

N is the energy level (in discrete numbers)
l is the subshell that can be N-1 or less
Ml is the orientation and is from -l to l
Ms is the electron and is +/- 1/2
by Kaylee Clarke 1G
Sun Nov 03, 2019 10:01 pm
Forum: Bond Lengths & Energies
Topic: Why Are Double Bonds Shorter
Replies: 16
Views: 223

Re: Why Are Double Bonds Shorter

double bonds are shorter than single bonds, and triple bonds are shorter than single bonds because the greater number fo the bond the more closely is it attracted to the nucleus, decreasing the atomic radius.
by Kaylee Clarke 1G
Sun Nov 03, 2019 9:55 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge
Replies: 3
Views: 27

Re: Formal Charge

You calculate formal charge to calculate the charge of the electron for resonance structures which will lead you to the most stable atom.
by Kaylee Clarke 1G
Sun Nov 03, 2019 9:50 pm
Forum: Ionic & Covalent Bonds
Topic: Electron Configuration
Replies: 7
Views: 51

Re: Electron Configuration

yes.. also just to note the electron configuration of chromium and copper are exceptions to the regular configuration. Chromium is [Ar]3d^54s^1 and Copper is [Ar]3d^104s^1
by Kaylee Clarke 1G
Sun Oct 27, 2019 3:20 pm
Forum: Ionic & Covalent Bonds
Topic: Double and single bond lengths
Replies: 6
Views: 45

Double and single bond lengths

why is the double bond length shorter than the single bond length? And, if it follows the pattern, is the triple bond shorter than both?
by Kaylee Clarke 1G
Sun Oct 27, 2019 3:19 pm
Forum: Ionic & Covalent Bonds
Topic: ionization
Replies: 5
Views: 41

ionization

Can someone please explain the concept of ionization? How do you know that ionization energy is based off the period table?
by Kaylee Clarke 1G
Sun Oct 27, 2019 3:17 pm
Forum: Resonance Structures
Topic: 'delocalized'
Replies: 4
Views: 42

Re: 'delocalized'

'Delocalized' electrons are electrons that have more fluidity in the atom because they are not bonded and are in different positions in a set of resonance structures.
by Kaylee Clarke 1G
Sun Oct 27, 2019 3:07 pm
Forum: Resonance Structures
Topic: Resonance
Replies: 8
Views: 54

Re: Resonance

Resonance is the blending of structures, portraying the arrangement of atoms with different arrangements of electrons. From the different arrangements, the resonance represents the most stable structure and yes the most accurate lewis structure.
by Kaylee Clarke 1G
Sun Oct 27, 2019 3:02 pm
Forum: Resonance Structures
Topic: Bond lenghts.
Replies: 11
Views: 77

Re: Bond lenghts.

Dr. Lavelle didn't mention us needing to know bond lengths. We just need to understand that the length of a single bond will not be equal to that of a double bond, and that resonance will portray that blending of structures with said bonds.
by Kaylee Clarke 1G
Sun Oct 20, 2019 9:49 pm
Forum: Photoelectric Effect
Topic: The Work Function
Replies: 15
Views: 124

Re: The Work Function

the work function is the representation of the energy it takes to eject electrons from a metal and it is found with the equation E=hv.
by Kaylee Clarke 1G
Sun Oct 20, 2019 9:44 pm
Forum: DeBroglie Equation
Topic: DeBroglie Equation
Replies: 11
Views: 100

Re: DeBroglie Equation

De Broglie's Equation is used to find wavelength, and the equation is H/(mass x velocity) so you are finding wavelike properties
by Kaylee Clarke 1G
Sun Oct 20, 2019 9:35 pm
Forum: Naming
Topic: Naming Compounds (general question)
Replies: 9
Views: 103

Re: Naming Compounds (general question)

unless it is specified, it is unlikely that we have to memorize any for now
by Kaylee Clarke 1G
Sun Oct 20, 2019 9:30 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: delta p
Replies: 3
Views: 29

Re: delta p

delta p is the change in momentum, it can be calculated by multiplying mass and velocity
by Kaylee Clarke 1G
Tue Oct 15, 2019 5:59 pm
Forum: Properties of Light
Topic: Balmer and Lyman
Replies: 1
Views: 30

Balmer and Lyman

Can someone offer a more detailed explanation of the Balmer series and Lyman series?
by Kaylee Clarke 1G
Sun Oct 13, 2019 9:53 pm
Forum: Properties of Light
Topic: Diffraction Patterns
Replies: 2
Views: 27

Re: Diffraction Patterns

Constructive interference are in-phases, in which the waves have matching peaks and troughs. Destructive interference are out-of-phase, in which the waves' peak will align with the trough. Diffraction is the result of interacting waves, when the peaks and troughs or peaks and peaks align with one an...
by Kaylee Clarke 1G
Sun Oct 13, 2019 9:44 pm
Forum: SI Units, Unit Conversions
Topic: Accuracy vs Precision
Replies: 11
Views: 143

Re: Accuracy vs Precision

Precision has more to be with consistency in one area, even if not the bullseye as Professor Lavelle discussed, and accuracy is about the reaching the goal, or bullseye.
by Kaylee Clarke 1G
Sun Oct 13, 2019 9:40 pm
Forum: Photoelectric Effect
Topic: Wavelength, Frequency, and Intensity
Replies: 7
Views: 47

Re: Wavelength, Frequency, and Intensity

Shorter wavelengths have higher frequencies, which means more energy to eject electron.. which is why the electrons are reactive to short wavelengths. And, the wavelength is not effected by the intensity of the light source, so there will not be more energy in the photons.
by Kaylee Clarke 1G
Sun Oct 13, 2019 9:31 pm
Forum: Photoelectric Effect
Topic: De Broglie's Equation
Replies: 5
Views: 32

Re: De Broglie's Equation

De Broglie's equation is used to find wavelength.
by Kaylee Clarke 1G
Sun Oct 13, 2019 9:26 pm
Forum: Photoelectric Effect
Topic: Photons
Replies: 2
Views: 28

Photons

Is light the compilation of photons? What is their relationship to one another? I need clarification....
by Kaylee Clarke 1G
Sun Oct 06, 2019 2:24 pm
Forum: Empirical & Molecular Formulas
Topic: What decimal place to round to when taking masses from the Periodic Table?
Replies: 19
Views: 260

Re: What decimal place to round to when taking masses from the Periodic Table?

I would recommend using the entire number to begin with so you have the most accurate answer and then when you have the solution you can use sig figs to decide where to round.
by Kaylee Clarke 1G
Sun Oct 06, 2019 2:21 pm
Forum: Limiting Reactant Calculations
Topic: Finding the limiting reaction
Replies: 3
Views: 33

Finding the limiting reaction

When finding the limiting reaction, where does the molar ratio come into play? Limiting reactants are a topic I’m struggling to grasp. Is there a ste by step way to go about solving the problems?

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