Search found 89 matches

by Veronica Lu 2H
Sun Mar 15, 2020 3:04 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: temp vs k
Replies: 3
Views: 19

Re: temp vs k

there's a direct relationship so increasing temp should also increase K
by Veronica Lu 2H
Sun Mar 15, 2020 3:03 pm
Forum: Calculating Work of Expansion
Topic: reversible expansion
Replies: 4
Views: 31

Re: reversible expansion

the area under the curve is the work by expansion
by Veronica Lu 2H
Sun Mar 15, 2020 3:02 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: pH of acids
Replies: 11
Views: 95

Re: pH of acids

weak acids have a pH that's closer to 7 (neutral)
by Veronica Lu 2H
Sun Mar 15, 2020 3:02 pm
Forum: Administrative Questions and Class Announcements
Topic: Chem Final Typo
Replies: 8
Views: 181

Re: Chem Final Typo

it didn't seem like a typo
by Veronica Lu 2H
Sun Mar 08, 2020 8:47 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Cell potential
Replies: 6
Views: 50

Re: Cell potential

water dilutes the solution.Whether it increases or decreases cell potential depends on the problem
by Veronica Lu 2H
Sun Mar 08, 2020 8:46 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Figuring out n
Replies: 15
Views: 83

Re: Figuring out n

n is the number of electrons that are transferred
by Veronica Lu 2H
Sun Mar 08, 2020 8:45 pm
Forum: Van't Hoff Equation
Topic: what does it do?
Replies: 13
Views: 153

Re: what does it do?

it helps you find the K when there are changes in temperature
by Veronica Lu 2H
Sun Mar 08, 2020 8:44 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Study Advice
Replies: 73
Views: 3494

Re: Study Advice

I do all the textbook problems
by Veronica Lu 2H
Sun Mar 08, 2020 8:44 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Cell Diagram
Replies: 16
Views: 77

Re: Cell Diagram

reduction is in the cathode while oxidation occurs in the anode. Also, the cathode is typically on the right
by Veronica Lu 2H
Sun Mar 01, 2020 10:21 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: gibbs free energy
Replies: 15
Views: 96

Re: gibbs free energy

Gibbs free energy is the energy available to do work
by Veronica Lu 2H
Sun Mar 01, 2020 10:20 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: when to use K or Q
Replies: 18
Views: 106

Re: when to use K or Q

K is used when the reaction is at equilibrium and Q is used when it’s not
by Veronica Lu 2H
Sun Mar 01, 2020 10:16 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: cell potential
Replies: 15
Views: 53

Re: cell potential

When E is positive and delta G is negative, spontaneity is involved
by Veronica Lu 2H
Sun Mar 01, 2020 10:15 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Galvanic Cells
Replies: 10
Views: 49

Re: Galvanic Cells

Zero means that the battery has died
by Veronica Lu 2H
Sun Mar 01, 2020 10:14 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Salt Bridge
Replies: 12
Views: 65

Re: Salt Bridge

A salt bridge allows electrons to flow from one side to the other
by Veronica Lu 2H
Sun Feb 23, 2020 1:07 am
Forum: Balancing Redox Reactions
Topic: Calculating the reaction Gibbs free energy
Replies: 7
Views: 49

Re: Calculating the reaction Gibbs free energy

n is the number of moles of electrons being transferred
by Veronica Lu 2H
Sun Feb 23, 2020 1:07 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Adding Inert Gas
Replies: 20
Views: 174

Re: Adding Inert Gas

adding an inert gas does not create a change
by Veronica Lu 2H
Sun Feb 23, 2020 1:06 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: relevance of salt bridge
Replies: 9
Views: 35

Re: relevance of salt bridge

salts have the ability to transfer electrons so a salt bridge allows the flow of electrons from one side to the other
by Veronica Lu 2H
Sun Feb 23, 2020 1:05 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: n in -nFE
Replies: 14
Views: 171

Re: n in -nFE

n=number of electrons transferred
by Veronica Lu 2H
Sun Feb 16, 2020 11:42 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Why are exothermic reactions generally spontaneous?
Replies: 16
Views: 150

Re: Why are exothermic reactions generally spontaneous?

Typically if delta H is negative, delta S is positive and delta G is negative this indicates spontaneity
by Veronica Lu 2H
Sun Feb 16, 2020 11:40 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: adiabatic
Replies: 19
Views: 156

Re: adiabatic

There is no heat exchange
by Veronica Lu 2H
Sun Feb 16, 2020 11:39 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Gibbs Free energy concept
Replies: 16
Views: 110

Re: Gibbs Free energy concept

Gibbs free energy is the energy available to do work. A negative delta G indicates spontaneity whereas positive delta G means it’s not spontaneous
by Veronica Lu 2H
Sun Feb 16, 2020 11:37 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Midterm Curve
Replies: 45
Views: 377

Re: Midterm Curve

I also hope he curves it although I doubt he will. On the bright side, half the class will get a C or higher in the final grade I think
by Veronica Lu 2H
Sun Feb 16, 2020 11:35 am
Forum: Balancing Redox Reactions
Topic: oxidation vs reduction
Replies: 19
Views: 132

Re: oxidation vs reduction

Leo goes Ger [censored]
Losing electrons = oxidation
Gaining electrons= reduction
by Veronica Lu 2H
Mon Feb 10, 2020 10:06 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Joules or KJ?
Replies: 14
Views: 124

Joules or KJ?

when solving problems on the midterm, are we supposed to have final answers in J or kJ? or does it depend on the problem?
by Veronica Lu 2H
Sun Feb 09, 2020 10:03 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Kelvin or Celsius?
Replies: 47
Views: 504

Kelvin or Celsius?

when using PV=nRT is the temperature supposed to be celsius or kelvin?
by Veronica Lu 2H
Sun Feb 09, 2020 9:58 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Expansion work/ Compression
Replies: 7
Views: 48

Re: Expansion work/ Compression

negative work means work is being done (expansion) whereas positive work signifies work is done on the system (compression)
by Veronica Lu 2H
Sun Feb 09, 2020 9:54 pm
Forum: Phase Changes & Related Calculations
Topic: closed vs isolated
Replies: 10
Views: 56

Re: closed vs isolated

An isolated system has no contact with the outside environment (hence "isolated") whereas closed systems can still interact with the environment
by Veronica Lu 2H
Sun Feb 09, 2020 9:50 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Calorimeters
Replies: 17
Views: 97

Re: Calorimeters

calorimeters keep a constant volume
by Veronica Lu 2H
Sun Feb 09, 2020 9:46 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Hess's Law
Replies: 10
Views: 55

Re: Hess's Law

Since enthalpy is a state function, their values can be added/subtracted together
by Veronica Lu 2H
Sun Feb 09, 2020 9:40 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Isolated// Energy
Replies: 11
Views: 79

Re: Isolated// Energy

There is no change in energy in an isolated system since there is no interaction with the outside environment
by Veronica Lu 2H
Sun Feb 02, 2020 3:14 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Hess's Law vs Bond Enthalpies vs Standard Enthalpies of Formation
Replies: 7
Views: 39

Re: Hess's Law vs Bond Enthalpies vs Standard Enthalpies of Formation

PranaviKolla2B wrote:Can someone please define Hess's Law?


according to google, Hess' law "states that regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes. This law is a manifestation that enthalpy is a state function."
by Veronica Lu 2H
Sun Feb 02, 2020 3:13 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: hess's law
Replies: 13
Views: 64

Re: hess's law

if they have the same number of moles on both sides they cancel out
by Veronica Lu 2H
Sun Feb 02, 2020 2:56 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Elements
Replies: 8
Views: 38

Re: Elements

diatomic elements are steady and are found to be that way in nature so the enthalpy of formation is 0kj/mol
by Veronica Lu 2H
Sun Feb 02, 2020 2:47 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Weaker Base, Higher pKb
Replies: 4
Views: 45

Re: Weaker Base, Higher pKb

the bigger the kb, the lower the pkb (log properties) which also means the stronger the base
by Veronica Lu 2H
Sun Feb 02, 2020 2:46 pm
Forum: Ideal Gases
Topic: pv=nrt
Replies: 9
Views: 69

Re: pv=nrt

everything in the equation except for R is variable. R is a constant and you can use that accordingly with the information given in the problem
by Veronica Lu 2H
Sun Jan 26, 2020 11:46 am
Forum: Phase Changes & Related Calculations
Topic: Celsius and Kelvin
Replies: 11
Views: 77

Re: Celsius and Kelvin

K=273+c
by Veronica Lu 2H
Sun Jan 26, 2020 11:45 am
Forum: Phase Changes & Related Calculations
Topic: Entropy vs Enthalpy
Replies: 9
Views: 42

Re: Entropy vs Enthalpy

Entropy is a measure of disorder in the universe whereas enthalpy is how much heat is absorbed or released in a given reaction
by Veronica Lu 2H
Sun Jan 26, 2020 11:42 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Hess's Law
Replies: 7
Views: 62

Re: Hess's Law

Two or more reactions can be added together
by Veronica Lu 2H
Sun Jan 26, 2020 11:41 am
Forum: Phase Changes & Related Calculations
Topic: motion of atoms
Replies: 2
Views: 22

Re: motion of atoms

Solids tend to have more “orderly” atoms since they’re stuck in their forms whereas gases have fast moving and “disorganized” atoms
by Veronica Lu 2H
Wed Jan 22, 2020 7:30 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Ice Box Question
Replies: 2
Views: 13

Ice Box Question

When doing the ice box, do we always subtract X from the reactants? Or is there a specific method to figure out which side we subtract X by?
by Veronica Lu 2H
Sun Jan 19, 2020 6:33 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: pH vs. pOH
Replies: 13
Views: 91

Re: pH vs. pOH

to find the pH use the concentration of an acid to find pOH use the concentration of a base. IF given pH you can simply subtract that from 14 to find the pOH
by Veronica Lu 2H
Sun Jan 19, 2020 6:32 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: ICE table
Replies: 11
Views: 51

Re: ICE table

Usually you should use the ICE table for weak acids/ bases since the strong ones fully ionize
by Veronica Lu 2H
Sun Jan 19, 2020 6:29 pm
Forum: Ideal Gases
Topic: R Constant
Replies: 7
Views: 35

Re: R Constant

R is usually 0.082- it may also be on the formula sheet
by Veronica Lu 2H
Sun Jan 19, 2020 6:28 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Concentrations
Replies: 12
Views: 63

Re: Concentrations

the concentration only affects the Kc not Kp
by Veronica Lu 2H
Sun Jan 19, 2020 6:24 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Endo vs. Exothermic
Replies: 5
Views: 31

Re: Endo vs. Exothermic

Typically a reaction that forms bonds is exothermic whereas a bond breaking reaction is usually endothermic
by Veronica Lu 2H
Sun Jan 12, 2020 11:41 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: memorization
Replies: 12
Views: 76

Re: memorization

These are typically given on exams.
by Veronica Lu 2H
Sun Jan 12, 2020 11:40 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Units for K
Replies: 21
Views: 122

Re: Units for K

There are no units since K is more so a ratio
by Veronica Lu 2H
Sun Jan 12, 2020 11:39 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Homogenous Equilibrium
Replies: 13
Views: 59

Re: Homogenous Equilibrium

When products and reactants are in the same phase, the reaction is known as homogenous
by Veronica Lu 2H
Sun Jan 12, 2020 11:38 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Reaction Direction
Replies: 14
Views: 92

Re: Reaction Direction

When dealing with equilibrium, the reactions are typically reversible meaning that it could be left to right or the other way around
by Veronica Lu 2H
Sun Jan 12, 2020 11:28 pm
Forum: Ideal Gases
Topic: Q vs. K
Replies: 10
Views: 53

Re: Q vs. K

Both are calculated using the same formulas but Q is used anytime during the reaction whilst K is calculated with equilibrium concentration and values!
by Veronica Lu 2H
Sun Dec 08, 2019 12:06 am
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: Strength
Replies: 6
Views: 75

Re: Strength

105289321 wrote:Are LDF present in all molecules?
yes London Forces are present in all molecules
by Veronica Lu 2H
Sat Dec 07, 2019 1:51 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Electron Configuration
Replies: 3
Views: 48

Electron Configuration

I am confused as to how we should order the electron configurations. I recall the correct order being like 4s2 then 3d10. However, in the textbook and midterm solutions it shows them being 3s2 3p6 3d10 then 4s2 4p6 etc. Which is right??
by Veronica Lu 2H
Sun Dec 01, 2019 8:43 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: pH scale
Replies: 12
Views: 79

Re: pH scale

In most situations, pH ranges from 0-14
by Veronica Lu 2H
Sun Dec 01, 2019 8:42 pm
Forum: Conjugate Acids & Bases
Topic: Water as an Acid/Base
Replies: 20
Views: 540

Re: Water as an Acid/Base

water can act as both an acid and a base
by Veronica Lu 2H
Sun Dec 01, 2019 8:40 pm
Forum: Conjugate Acids & Bases
Topic: NH3, acid or base?
Replies: 12
Views: 1873

Re: NH3, acid or base?

ammonia would be considered a weak base
by Veronica Lu 2H
Sun Dec 01, 2019 8:39 pm
Forum: Lewis Acids & Bases
Topic: acid v. base?
Replies: 16
Views: 112

Re: acid v. base?

Lewis acids will donate electrons and Lewis bases will accept electrons
by Veronica Lu 2H
Sun Dec 01, 2019 8:38 pm
Forum: Lewis Acids & Bases
Topic: Proton acceptor and proton donor?
Replies: 33
Views: 213

Re: Proton acceptor and proton donor?

an acid donates electrons, whereas a base accepts electrons
by Veronica Lu 2H
Sun Nov 24, 2019 11:52 pm
Forum: Hybridization
Topic: Sigma and Pi bonds
Replies: 3
Views: 26

Re: Sigma and Pi bonds

As stated above, the sigma bonds have more of an overlap in the electron cloud between the atoms, thus making the bond stronger.
by Veronica Lu 2H
Sun Nov 24, 2019 11:49 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: AXE Format
Replies: 34
Views: 188

Re: AXE Format

Simply including the X and the E would suffice.
by Veronica Lu 2H
Sun Nov 24, 2019 11:49 pm
Forum: Naming
Topic: d-metals
Replies: 2
Views: 36

Re: d-metals

yes I believe they are metals with d orbitals.
by Veronica Lu 2H
Sun Nov 24, 2019 11:46 pm
Forum: Naming
Topic: Order in Naming
Replies: 12
Views: 88

Re: Order in Naming

first and foremost, place them in alphabetical order then find its charge
by Veronica Lu 2H
Sun Nov 24, 2019 11:44 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Cis vs Trans
Replies: 21
Views: 268

Re: Cis vs Trans

cis molecules are polar whereas trans molecules are nonpolar
by Veronica Lu 2H
Sun Nov 17, 2019 9:22 pm
Forum: Dipole Moments
Topic: Hydrogen bonds
Replies: 17
Views: 129

Re: Hydrogen bonds

hydrogen bonds occur when hydrogen bonds with the electronegative elements F, O, N
by Veronica Lu 2H
Sun Nov 17, 2019 9:20 pm
Forum: Resonance Structures
Topic: Resonance Structures
Replies: 18
Views: 201

Re: Resonance Structures

resonance structures are lewis structures that are essentially all the same but have double/triple bonds at different locations
by Veronica Lu 2H
Sun Nov 17, 2019 9:20 pm
Forum: Resonance Structures
Topic: Formal Charge Question
Replies: 15
Views: 177

Re: Formal Charge Question

they need to all add up and equal the overall charge
by Veronica Lu 2H
Sun Nov 17, 2019 9:18 pm
Forum: Bond Lengths & Energies
Topic: Electron Density
Replies: 10
Views: 99

Re: Electron Density

Lone pairs are indeed regions of electron density as they alter the shapes of molecules
by Veronica Lu 2H
Sun Nov 17, 2019 9:17 pm
Forum: Bond Lengths & Energies
Topic: Shorter bond lengths
Replies: 12
Views: 95

Re: Shorter bond lengths

double bonds are shorter since the bonds are stronger and pull them closer together
by Veronica Lu 2H
Sun Nov 03, 2019 9:23 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Stability
Replies: 9
Views: 124

Re: Stability

the formal charge should be zero (or close to it) in order for the octet to be complete and create stability.
by Veronica Lu 2H
Sun Nov 03, 2019 9:22 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Minimize formal charge of whole molecule?
Replies: 7
Views: 55

Re: Minimize formal charge of whole molecule?

ideally, the atoms want to be in their complete octet state where they are the most stable, thus each formal charge should be as close to zero as possible.
by Veronica Lu 2H
Sun Nov 03, 2019 9:17 pm
Forum: Electronegativity
Topic: What is isoelectronic?
Replies: 13
Views: 79

Re: What is isoelectronic?

isoelectronic refers to the situation in which there the number of electrons are equal
by Veronica Lu 2H
Sun Nov 03, 2019 9:16 pm
Forum: Electronegativity
Topic: Noble Gases and Electronegativity
Replies: 3
Views: 26

Re: Noble Gases and Electronegativity

noble gases have no electronegativity since they already have complete octets.
by Veronica Lu 2H
Sun Nov 03, 2019 9:15 pm
Forum: Electronegativity
Topic: Electronegativity
Replies: 9
Views: 79

Re: Electronegativity

fluorine is the most electronegative element; it may be helpful to remember that electronegativity increases as you go to the upper right of the periodic table.
by Veronica Lu 2H
Sun Oct 27, 2019 9:49 pm
Forum: Ionic & Covalent Bonds
Topic: Covalent Bonds
Replies: 11
Views: 95

Re: Covalent Bonds

ionic bonds are characterized as a bond between a metal and a nonmetal, whereas covalent bonds are bonds between two nonmetals.
by Veronica Lu 2H
Sun Oct 27, 2019 9:43 pm
Forum: Sigma & Pi Bonds
Topic: Which bond would break first.
Replies: 15
Views: 760

Re: Which bond would break first.

the pi bond is much weaker than the sigma bond due to the differences in the way that they overlap. Therefore, the pi bond would break first.
by Veronica Lu 2H
Sun Oct 27, 2019 9:40 pm
Forum: Sigma & Pi Bonds
Topic: Importance of Sigma/Pi Bonds
Replies: 5
Views: 245

Re: Importance of Sigma/Pi Bonds

Having the knowledge of whether a bond is a sigma or a pi bond allows one to figure out the structure of the molecule
by Veronica Lu 2H
Sun Oct 27, 2019 9:36 pm
Forum: Sigma & Pi Bonds
Topic: Single vs. Double bonds
Replies: 15
Views: 125

Re: Single vs. Double bonds

The double bonds are much stronger than single bonds, therefore the pull is stronger making them shorter
by Veronica Lu 2H
Sun Oct 27, 2019 9:32 pm
Forum: Properties of Electrons
Topic: Electron removal
Replies: 11
Views: 110

Re: Electron removal

Electrons that are closer to the nucleus are subject to more pull from the positively charged nucleus.
by Veronica Lu 2H
Sun Oct 13, 2019 4:52 pm
Forum: Properties of Electrons
Topic: electron energy
Replies: 4
Views: 47

Re: electron energy

The amount of energy it takes to remove an electron from the ground state of a gaseous atom, molecule or ion. The first ionization energy is the energy needed to remove the first electron from an atom. the second ionization energy is the energy needed to remove the second one and so on.
by Veronica Lu 2H
Sun Oct 13, 2019 4:46 pm
Forum: Einstein Equation
Topic: Units
Replies: 17
Views: 754

Re: Units

I think for the most part it would only go as far as kilograms, but in any case, if megagrams and gigagrams were necessary I think we would be provided a formula sheet to convert the numbers.
by Veronica Lu 2H
Sun Oct 13, 2019 4:41 pm
Forum: Trends in The Periodic Table
Topic: Atomic Radius
Replies: 16
Views: 233

Re: Atomic Radius

The atomic radius is measured only in the group state of the element. A side note: atomic radius increases as you go from the left of the periodic table and down. Therefore, francium has the largest atomic radius out of all the elements.
by Veronica Lu 2H
Sun Oct 13, 2019 4:35 pm
Forum: Properties of Electrons
Topic: electron energy levels
Replies: 6
Views: 40

Re: electron energy levels

Electrons in the outer shell are further from the nucleus; therefore, they are less susceptible to the attractive forces from the nucleus pulling them in.
by Veronica Lu 2H
Sun Oct 13, 2019 10:45 am
Forum: Properties of Electrons
Topic: Constructive vs Destructive Inference
Replies: 4
Views: 44

Re: Constructive vs Destructive Inference

constructive inference is is "constructive" in the sense that its crests are aligned with that of another waves, which does create a higher amplitude. On the other hand, destructive inference is when the waves are unaligned and creates a lower amplitude.
by Veronica Lu 2H
Sun Oct 06, 2019 4:47 pm
Forum: Properties of Light
Topic: unit change
Replies: 4
Views: 69

Re: unit change

The negative exponent brings the “s” down to the denominator, making it “per second”.
by Veronica Lu 2H
Sun Oct 06, 2019 4:43 pm
Forum: Properties of Light
Topic: Oscillating Frequency
Replies: 2
Views: 51

Re: Oscillating Frequency

Longer wavelength means shorter frequency, (inverse relationship) since the longer wavelength can pass through less cycles in a set amount of time compared to shorter wavelengths. Blue light has a shorter frequency so it’s wavelength would be longer.
by Veronica Lu 2H
Sun Oct 06, 2019 4:35 pm
Forum: Properties of Light
Topic: White Light
Replies: 2
Views: 12

Re: White Light

I think white light is in a sense a homogenous mixture of all the different wavelengths (thus colors) of light
by Veronica Lu 2H
Sun Oct 06, 2019 4:28 pm
Forum: Limiting Reactant Calculations
Topic: Reactant vs. Reagent
Replies: 4
Views: 69

Re: Reactant vs. Reagent

There is no difference; reactant and reagent are the same thing.
by Veronica Lu 2H
Thu Oct 03, 2019 4:57 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Lab experiments- accuracy vs precision
Replies: 7
Views: 120

Re: Lab experiments- accuracy vs precision

Precision is how close together your results are to each other, whereas accuracy refers to how close to the known (correct) value the results are.

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