Search found 100 matches

by Jina Kwon
Fri Mar 13, 2020 11:55 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Elementary Steps
Replies: 4
Views: 11

Elementary Steps

Why is it unlikely that 4 molecules collide simultaneously?
by Jina Kwon
Fri Mar 13, 2020 11:20 am
Forum: Method of Initial Rates (To Determine n and k)
Topic: Slowest step
Replies: 9
Views: 47

Slowest step

Why is the slowest step considered the rate determining state?
by Jina Kwon
Fri Mar 13, 2020 11:10 am
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Kinetics vs thermodynamics
Replies: 3
Views: 23

Kinetics vs thermodynamics

What's the difference between kinetics and thermodynamics when controlling a reaction?
by Jina Kwon
Fri Mar 13, 2020 11:07 am
Forum: General Rate Laws
Topic: Temperature and kinetics
Replies: 5
Views: 25

Temperature and kinetics

Do molecules have higher kinetic energy with higher temperatures?
by Jina Kwon
Fri Mar 13, 2020 11:04 am
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Arrhenius equation
Replies: 1
Views: 18

Arrhenius equation

When you're modeling a reaction using the Arrhenius theory, why will the plot be linear?
by Jina Kwon
Sun Mar 08, 2020 6:00 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: Rate of Formation/Rate Law
Replies: 1
Views: 23

Rate of Formation/Rate Law

How can the rate of formation relate to the rate law?
by Jina Kwon
Sun Mar 08, 2020 5:59 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: steady-state approximation
Replies: 1
Views: 26

steady-state approximation

How does the steady-state approximation relate to the net rate of formation?
by Jina Kwon
Sun Mar 08, 2020 5:58 pm
Forum: General Rate Laws
Topic: net-rate of formation
Replies: 1
Views: 10

net-rate of formation

What exactly is the net-rate of formation?
by Jina Kwon
Thu Mar 05, 2020 5:10 pm
Forum: General Rate Laws
Topic: Rate Law
Replies: 2
Views: 33

Rate Law

for 2 N2O5 ---> 4 NO2 + O2
why is the rate law: kr[N2O5]

for 2 HI ---> H2 + I2
why is the rate law: kr[HI]2

how come for the reaction, the reactant is not squared?
by Jina Kwon
Mon Mar 02, 2020 3:44 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Platinum
Replies: 1
Views: 16

Platinum

do you use platinum when one is solid and the other is aqueous or gas?
by Jina Kwon
Sun Mar 01, 2020 3:10 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Calculating cell potential
Replies: 2
Views: 17

Calculating cell potential

When we reverse the reaction does the standard cell potential become negative?
by Jina Kwon
Sat Feb 29, 2020 10:15 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Corrosion
Replies: 1
Views: 14

Corrosion

Do we need to know about corrosion for test #2? Also, are we going to be tested on kinetics?
by Jina Kwon
Sat Feb 29, 2020 2:12 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Question 6L7 part c
Replies: 1
Views: 52

Question 6L7 part c

In this question, where did KOH come from?
by Jina Kwon
Sat Feb 29, 2020 1:11 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Question 6L5
Replies: 1
Views: 17

Question 6L5

Why is an inert electron such as Pt necessary when both oxidized and reduced species are in the same solution?
by Jina Kwon
Sat Feb 29, 2020 12:12 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: hydrogen electrodes
Replies: 3
Views: 14

hydrogen electrodes

I don't really understand the concept of hydrogen electrodes and how it relates to half cells
by Jina Kwon
Sun Feb 23, 2020 2:00 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Galvanic/Voltaic cells
Replies: 3
Views: 17

Galvanic/Voltaic cells

Where can we see these types of cells applied in real life?
by Jina Kwon
Sun Feb 23, 2020 1:59 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: platinum
Replies: 4
Views: 22

platinum

Why do we use platinum as a conductor?
by Jina Kwon
Sun Feb 23, 2020 1:49 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: n
Replies: 13
Views: 106

n

do we use 0.0821 or 8.314 when using this equation?
by Jina Kwon
Sun Feb 23, 2020 1:48 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: salt bridge
Replies: 5
Views: 22

salt bridge

What is the exact purpose of the salt bridge?
by Jina Kwon
Sat Feb 15, 2020 12:53 pm
Forum: Van't Hoff Equation
Topic: Constant
Replies: 3
Views: 25

Constant

What R constant do we use fort this equation?
by Jina Kwon
Sat Feb 15, 2020 12:48 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: Boltzmann Equation
Replies: 10
Views: 59

Boltzmann Equation

What does the boltmann equation account for? Is it related to resonance structure?
by Jina Kwon
Sat Feb 15, 2020 12:47 pm
Forum: Van't Hoff Equation
Topic: Equation
Replies: 5
Views: 29

Equation

In comparison to G = H - TS, what other use do we have in using this equation?
by Jina Kwon
Wed Feb 12, 2020 2:55 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Constant pressure and volume
Replies: 1
Views: 22

Constant pressure and volume

If it's a monoatomic gas and there's both constant pressure and volume would I use 3/2R or would I use 5/2R?
by Jina Kwon
Mon Feb 10, 2020 3:48 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: #6 on Lyndon's Review
Replies: 3
Views: 41

#6 on Lyndon's Review

In this problem, why is the entropy and internal energy 0?
by Jina Kwon
Sun Feb 09, 2020 1:02 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Higher the heat capacity
Replies: 4
Views: 23

Higher the heat capacity

What does a specific heat capacity mean?
by Jina Kwon
Sun Feb 09, 2020 12:03 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Hess's Law
Replies: 10
Views: 49

Hess's Law

What property of enthalpy allows Hess's law to be used?
by Jina Kwon
Sat Feb 08, 2020 5:59 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Dashed line
Replies: 2
Views: 26

Dashed line

what does the bond enthalpy mean when it has one dashed line and one solid line?
by Jina Kwon
Sat Feb 08, 2020 5:48 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: 4D23
Replies: 2
Views: 13

4D23

For this problem, where did N2(g) + (5/2)(O2) (g) --> N2O5(g) come from?
Why do we need to find this when we're trying to find the enthalpy of formation of N2O5?
by Jina Kwon
Sat Feb 08, 2020 4:27 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: 4D9
Replies: 2
Views: 27

4D9

In this problem, why is N2 gas and O2 gas excluded from the equation?
by Jina Kwon
Sun Feb 02, 2020 11:09 am
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: First law of thermodynamics
Replies: 3
Views: 28

First law of thermodynamics

How does the equation U = qp + w directly relate to the First law of Thermodynamics?
by Jina Kwon
Sun Feb 02, 2020 10:56 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: standard enthalpy
Replies: 2
Views: 10

standard enthalpy

I'm kind of confused on what standard enthalpy exactly means
by Jina Kwon
Sun Feb 02, 2020 10:50 am
Forum: Calculating Work of Expansion
Topic: Equation
Replies: 4
Views: 28

Equation

When we do we use this integral?
by Jina Kwon
Sun Feb 02, 2020 10:49 am
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Microstates
Replies: 5
Views: 25

Microstates

I'm a little confused on the concept of microstates
by Jina Kwon
Sat Jan 25, 2020 3:27 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: standard enthalpy
Replies: 2
Views: 10

standard enthalpy

I'm having a hard time understanding the conceptual aspects of standard enthalpy.
by Jina Kwon
Sat Jan 25, 2020 3:25 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: bomb calorimeter
Replies: 5
Views: 27

bomb calorimeter

what does a bomb calorimeter do?
by Jina Kwon
Sat Jan 25, 2020 3:24 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: 4A.3
Replies: 3
Views: 43

4A.3

Air in a bicycle pump is compressed by pushing in the handle. The inner diameter of the pump is 3.0 cm and the pump is depressed 20. cm with a pressure of 2.00 atm. (a) How much work is done in the compression? (b) Is the work positive or negative with respect to the air in the pump? (c) What is the...
by Jina Kwon
Sat Jan 25, 2020 3:23 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: work
Replies: 5
Views: 24

work

what is the exactly equation used to calculate work
by Jina Kwon
Sun Jan 19, 2020 5:13 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Problem 6D.15
Replies: 1
Views: 25

Problem 6D.15

Calculate the pH of (a) 0.19 m NH4Cl(aq); (b) 0.055 m
AlCl3(aq).

how do you do part b of this problem
by Jina Kwon
Sun Jan 19, 2020 11:39 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Pressure
Replies: 5
Views: 21

Pressure

Which direction does the reaction go when there's increased pressure?
by Jina Kwon
Sun Jan 19, 2020 11:38 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: acids and bases
Replies: 4
Views: 35

acids and bases

I'm a little confused on this concept, but are most acid/base reactions at equilibrium?
by Jina Kwon
Wed Jan 15, 2020 7:59 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 5l.29
Replies: 5
Views: 35

5l.29

I keep getting the answer wrong to this question: At 25 8C, K 5 3.2 3 10234 for the reaction 2 HCl(g) ∆
H2(g) 1 Cl2(g). If a reaction vessel of volume 1.0 L is filled with
HCl at 0.22 bar, what are the equilibrium partial pressures of HCl,
H2, and Cl2?
by Jina Kwon
Tue Jan 14, 2020 3:37 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 5l.13
Replies: 2
Views: 49

5l.13

(a) In an experiment, 2.0 mmol Cl2(g) was sealed into a reaction vessel of volume 2.0 L and heated to 1000. K to study its dissociation into Cl atoms. Use the information in Table 5G.2 to calculate the equilibrium composition of the mixture. (b) If 2.0 mmol F2 was placed into the reaction vessel ins...
by Jina Kwon
Tue Jan 14, 2020 11:06 am
Forum: Ideal Gases
Topic: Problem 5l.11
Replies: 2
Views: 37

Problem 5l.11

A reaction vessel of volume 0.500 L at 700. K contains 1.20 mmol SO2(g), 0.50 mmol O2(g), and 0.10 mmol SO3(g). At 700. K, Kc 5 1.7 3 106 for the equilibrium 2 SO2(g) 1 O2(g) ∆ 2 SO3(g). (a) Calculate the reaction quotient Qc. (b) Will more SO3(g) tend to form? I keep getting the wrong answer for th...
by Jina Kwon
Wed Jan 08, 2020 2:15 pm
Forum: Ideal Gases
Topic: Gas Law
Replies: 6
Views: 43

Gas Law

How does the gas law apply to chemical equilibrium?
by Jina Kwon
Wed Jan 08, 2020 2:05 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Partial Pressure of gas
Replies: 5
Views: 49

Partial Pressure of gas

What units do you use for partial pressure of gas?
by Jina Kwon
Wed Jan 08, 2020 2:00 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: solids and liquids
Replies: 2
Views: 26

solids and liquids

Why don't we use solids and liquids in equilibrium expressions?
by Jina Kwon
Wed Jan 08, 2020 1:57 pm
Forum: Ideal Gases
Topic: Q and K
Replies: 7
Views: 53

Q and K

I'm still little bit confused between Q and K. When do you use each one?
by Jina Kwon
Tue Jan 07, 2020 10:37 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: 5G11
Replies: 5
Views: 69

5G11

For question 5G11, why are some answers written with P and why are some answers written with brackets?
by Jina Kwon
Thu Dec 05, 2019 1:33 pm
Forum: Biological Examples
Topic: Biological questions on the final
Replies: 5
Views: 85

Biological questions on the final

How much biology do we need to know for ligands and coordination compounds?
by Jina Kwon
Thu Dec 05, 2019 1:32 pm
Forum: Air Pollution & Acid Rain
Topic: Acid rain
Replies: 2
Views: 62

Acid rain

What is the reaction for acid rain?
by Jina Kwon
Thu Dec 05, 2019 1:27 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: chelate
Replies: 3
Views: 41

chelate

How do you know whether a ligand is a chelate or not?
by Jina Kwon
Thu Dec 05, 2019 1:25 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: -ate
Replies: 11
Views: 118

-ate

When naming ligands, when do we use -ate at the end?
by Jina Kwon
Thu Dec 05, 2019 1:24 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Polydentate Ligands
Replies: 2
Views: 56

Polydentate Ligands

I'm really confused on how to know a ligand is a polydentate or a monodentate? Is there an easy way to figure this out?
by Jina Kwon
Fri Nov 29, 2019 1:23 am
Forum: Amphoteric Compounds
Topic: acids/bases
Replies: 2
Views: 28

acids/bases

In which environments do amphoteric compounds act as acids and which environments do they act as bases?
by Jina Kwon
Fri Nov 29, 2019 1:15 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: coordination number
Replies: 8
Views: 52

coordination number

Is coordination number based off the the number of lone pair of electrons?
by Jina Kwon
Fri Nov 29, 2019 1:11 am
Forum: Lewis Acids & Bases
Topic: acidic oxide/basic oxide
Replies: 2
Views: 37

acidic oxide/basic oxide

I don't have a clear understanding of acidic oxides and basic oxides - what are they and what purpose do they serve?
by Jina Kwon
Fri Nov 29, 2019 1:03 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: strength of ligands
Replies: 1
Views: 21

strength of ligands

How strong are ligands in comparison to intermolecular bonds?
by Jina Kwon
Fri Nov 29, 2019 1:00 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: water
Replies: 1
Views: 25

water

How come water is a monodentate ligand?
by Jina Kwon
Tue Nov 19, 2019 10:28 pm
Forum: *Liquid Structure (Viscosity, Surface Tension, Liquid Crystals, Ionic Liquids)
Topic: repulsion
Replies: 2
Views: 51

repulsion

How does repulsion contribute to definite size and shapes?
by Jina Kwon
Tue Nov 19, 2019 10:21 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: cations
Replies: 2
Views: 29

cations

for cations, is it the smaller the molecule the higher the polarity?
by Jina Kwon
Thu Nov 14, 2019 12:30 pm
Forum: *Liquid Structure (Viscosity, Surface Tension, Liquid Crystals, Ionic Liquids)
Topic: Viscosity/Surface Tension
Replies: 4
Views: 65

Viscosity/Surface Tension

How does intermolecular forces relate to viscosity and surface tension?
by Jina Kwon
Thu Nov 14, 2019 12:25 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: Ion-Dipole
Replies: 2
Views: 21

Ion-Dipole

Can someone clear up what an Ion-Dipole is because I don't think we learned this in class
by Jina Kwon
Thu Nov 14, 2019 12:22 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: Interaction potential energy
Replies: 3
Views: 33

Interaction potential energy

I don't really understand the purpose of the interaction potential energy equation. Do we need to know this for future tests?
by Jina Kwon
Thu Nov 14, 2019 12:19 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: difference between trigonal planar and tetrahedral
Replies: 4
Views: 26

difference between trigonal planar and tetrahedral

What is the difference between trigonal planar and tetrahedral?
by Jina Kwon
Thu Nov 14, 2019 12:16 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: difference between bent and angular
Replies: 4
Views: 33

difference between bent and angular

What is the difference between a bent and angular shape?
by Jina Kwon
Fri Nov 08, 2019 11:22 am
Forum: Photoelectric Effect
Topic: frequency and ejection of electrons
Replies: 7
Views: 89

frequency and ejection of electrons

what is the relationship between frequency and the ejection of electrons ?
by Jina Kwon
Fri Nov 08, 2019 11:17 am
Forum: DeBroglie Equation
Topic: Light waves
Replies: 2
Views: 49

Light waves

Can we use this equation for light waves?
by Jina Kwon
Fri Nov 08, 2019 11:10 am
Forum: Ionic & Covalent Bonds
Topic: Strength of ionic and covalent bonds
Replies: 5
Views: 33

Strength of ionic and covalent bonds

which one is actually stronger, covalent or ionic bonds?
by Jina Kwon
Fri Nov 08, 2019 11:09 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: Order of strength
Replies: 3
Views: 33

Order of strength

Out of the list of intermolecular forces, what's the order of weakest to strongest?
by Jina Kwon
Thu Oct 31, 2019 4:55 pm
Forum: Bond Lengths & Energies
Topic: Bond energies
Replies: 4
Views: 38

Bond energies

Which bonds have the most energy in comparison to others?
by Jina Kwon
Thu Oct 31, 2019 4:54 pm
Forum: Electronegativity
Topic: electronegative
Replies: 6
Views: 45

electronegative

What happens when A and B have a bond, but one is more electronegative in comparison to the other?
by Jina Kwon
Thu Oct 31, 2019 4:49 pm
Forum: Sigma & Pi Bonds
Topic: Difference between sigma and pi bonds
Replies: 4
Views: 50

Difference between sigma and pi bonds

What is the major difference between sigma and pi bonds?
by Jina Kwon
Thu Oct 31, 2019 4:47 pm
Forum: Resonance Structures
Topic: Why Resonance Structures matter
Replies: 2
Views: 30

Why Resonance Structures matter

If they have the same energies, why do the different resonance structures matter?
by Jina Kwon
Thu Oct 31, 2019 4:44 pm
Forum: Octet Exceptions
Topic: Octet exception
Replies: 2
Views: 26

Octet exception

What causes a molecule to have an octet exception?
by Jina Kwon
Thu Oct 24, 2019 5:04 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Question 2A #5 part c
Replies: 2
Views: 29

Question 2A #5 part c

For the answer to this question, why is it [Ar]3d^10
by Jina Kwon
Thu Oct 24, 2019 5:01 pm
Forum: Lewis Structures
Topic: Bond strength
Replies: 7
Views: 52

Bond strength

Are covalent bonds stronger or ionic bonds and why? Does this also relate to electronegativity?
by Jina Kwon
Thu Oct 24, 2019 5:00 pm
Forum: Electronegativity
Topic: The dipole moment
Replies: 2
Views: 44

The dipole moment

I'm kind of confused how the electric dipole moment is related to electronegativity?
by Jina Kwon
Thu Oct 24, 2019 4:58 pm
Forum: Resonance Structures
Topic: Different Resonance Structures
Replies: 4
Views: 43

Different Resonance Structures

Do different resonance structures imply different scientific meanings or does it not matter what resonance structure a molecule is in?
by Jina Kwon
Thu Oct 24, 2019 4:53 pm
Forum: Octet Exceptions
Topic: Octet exception examples
Replies: 9
Views: 98

Octet exception examples

What are the octet exception examples that we usually need to know on tests?
by Jina Kwon
Thu Oct 17, 2019 5:35 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Balmer and Lyman series
Replies: 5
Views: 37

Balmer and Lyman series

What is the difference between Balmer and Lyman series?
by Jina Kwon
Thu Oct 17, 2019 5:31 pm
Forum: Photoelectric Effect
Topic: Different metals
Replies: 2
Views: 36

Different metals

Does the photoelectric effect work differently with diverse types of metals?
by Jina Kwon
Thu Oct 17, 2019 5:05 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: electron position
Replies: 3
Views: 28

electron position

How come the wave-particle duality makes you unable to determine the specific location of electrons?
by Jina Kwon
Thu Oct 17, 2019 4:59 pm
Forum: *Black Body Radiation
Topic: Black Body radiation
Replies: 1
Views: 49

Black Body radiation

I'm just a little bit confused on the concept of black body radiation. What role does it play in the concept of incandescence?
by Jina Kwon
Tue Oct 15, 2019 11:42 pm
Forum: Properties of Light
Topic: frequency of electromagnetic radiation
Replies: 1
Views: 24

frequency of electromagnetic radiation

Question 1A: 3 .I don't understand why the extent of the change in the electrical field at a given point decreases when the frequency of electromagnetic radiation decreases. Is it because when frequency increases, there's more change in the electrical field
by Jina Kwon
Thu Oct 10, 2019 1:27 pm
Forum: Properties of Light
Topic: Waves/Particles
Replies: 14
Views: 140

Waves/Particles

I get that electromagnetic radiation has wave-particle duality, but where do the idea of photons come from?
Does that mean photons have characteristics relating to both waves and particles?
by Jina Kwon
Thu Oct 10, 2019 1:17 pm
Forum: Properties of Light
Topic: Atom's transition
Replies: 3
Views: 34

Atom's transition

Does a greater energy difference imply a higher or lower frequency?
by Jina Kwon
Thu Oct 10, 2019 1:08 pm
Forum: Properties of Light
Topic: Minimum Frequency
Replies: 2
Views: 59

Minimum Frequency

How do we determine minimum frequency required for electrons to be ejected?
by Jina Kwon
Thu Oct 10, 2019 12:48 pm
Forum: Properties of Light
Topic: For future tests
Replies: 3
Views: 69

For future tests

Do we need to know the specific experiments that determined the properties of light because I feel like we didn't go over them in detail during class
by Jina Kwon
Tue Oct 08, 2019 4:04 pm
Forum: Significant Figures
Topic: Answer being a tad bit off
Replies: 8
Views: 207

Answer being a tad bit off

For one question I got the answer 13.8, but the answer is 13.5. Will I be docked off a lot of points for this?
by Jina Kwon
Thu Oct 03, 2019 11:25 am
Forum: Molarity, Solutions, Dilutions
Topic: Molality vs Molarity
Replies: 2
Views: 37

Molality vs Molarity

In which specific cases do we use Molality and which cases do we use molarity? Do they imply the same meaning in terms of calculating solution concentration?
by Jina Kwon
Thu Oct 03, 2019 11:20 am
Forum: SI Units, Unit Conversions
Topic: Sig Fig Mistakes
Replies: 17
Views: 221

Sig Fig Mistakes

For significant figures, does it matter how many sig figs you choose to use? Will anyone care if you choose to use four sig figs rather than three as long as you're being consistent?
by Jina Kwon
Thu Oct 03, 2019 12:31 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Different types of formulas
Replies: 2
Views: 64

Different types of formulas

What is the difference between chemical formula, molecular formula, and structural formula?
by Jina Kwon
Thu Oct 03, 2019 12:24 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Molecular weight/Atomic weight
Replies: 2
Views: 59

Molecular weight/Atomic weight

What are the differences between atomic weight, molecular weight, and formula weight.
by Jina Kwon
Thu Oct 03, 2019 12:21 am
Forum: Balancing Chemical Reactions
Topic: Unequal coefficients
Replies: 7
Views: 79

Unequal coefficients

If a chemical reactions' coefficients are unable to balanced, can we use fractions to balance the equation?

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