Search found 73 matches

by JasmineAlberto4J
Wed Mar 09, 2016 11:15 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Torsional Strain
Replies: 1
Views: 343

Re: Torsional Strain

Torsional strain is created when atoms are eclipsed. To identify if a conformation has torsional strain, you look and see if any atoms are eclipsed. This is different from steric strain in which the atoms physically touch, a good example of steric strain is the flagpole interaction of a boat conform...
by JasmineAlberto4J
Wed Mar 09, 2016 11:14 pm
Forum: *Cycloalkenes
Topic: Winter 2012 Final 6A naming a cycloalkene
Replies: 1
Views: 349

Re: Winter 2012 Final 6A naming a cycloalkene

1 is lower than 2. even though 5,5 is larger than 3,4 , the numbering that starts with 1 "wins" and we use that one regardless of the numbers that follow the 1
by JasmineAlberto4J
Wed Mar 09, 2016 11:11 pm
Forum: *Ketones
Topic: the prefix un
Replies: 1
Views: 1200

the prefix un

in the intro to orgo. book pg 63, we are asked to name undecan-2-one. what does the prefix un- indicate?
by JasmineAlberto4J
Wed Mar 09, 2016 11:08 pm
Forum: *Electrophiles
Topic: BF3 is a electrophile?
Replies: 1
Views: 682

BF3 is a electrophile?

Why is BF3 an electrophile?
by JasmineAlberto4J
Sun Feb 28, 2016 10:10 pm
Forum: *Alkanes
Topic: Quiz 3 Preparation #5
Replies: 5
Views: 545

Re: Quiz 3 Preparation #5

Oops Madison is correct. You can see the level of priorities on page 16 of Intro to Organic Chem
by JasmineAlberto4J
Sun Feb 28, 2016 5:17 pm
Forum: *Cycloalkanes
Topic: naming cycloalkanes
Replies: 1
Views: 407

Re: naming cycloalkanes

In this case there are only single bonds and not really anything that gets "priority". If you start with the methyl's you get 1 1 3. if you start with the isopropyl, you get 1 3 3. 1 1 3 "wins" because 1<3
by JasmineAlberto4J
Sun Feb 28, 2016 5:13 pm
Forum: *Alkanes
Topic: Quiz 3 Preparation #5
Replies: 5
Views: 545

Re: Quiz 3 Preparation #5

the first named group only gets the lowest number if numbering from the left of the right gave you the same sequence of numbers. for example, lets say that if you counted from the left that iodo was on on 1 and broom was on 3 and if you counted from the right iodo was on 3 and bromo was on 1. either...
by JasmineAlberto4J
Sun Feb 28, 2016 5:08 pm
Forum: *Cycloalkenes
Topic: Cycloalkene numbering
Replies: 1
Views: 388

Cycloalkene numbering

What is the correct way to number this cycloalkene? and why is it not the other one?
by JasmineAlberto4J
Sat Feb 27, 2016 4:31 pm
Forum: *Electrophilic Addition
Topic: differentiating between Electrophilic Addition and Substi...
Replies: 1
Views: 348

differentiating between Electrophilic Addition and Substi...

How can we tell if in a reaction it is Electrophilic Addition or its Substitution?
by JasmineAlberto4J
Sat Feb 27, 2016 2:57 pm
Forum: *Cycloalkanes
Topic: Cycloalkanes- Naming Question
Replies: 2
Views: 347

Re: Cycloalkanes- Naming Question

I think the confusion arises from the fact that where the cyclopropyl attaches to the pentane group looks like it is a methyl substituent, but it is just the bond that attaches the cyclopropyl to the pentane chain.
by JasmineAlberto4J
Sat Feb 27, 2016 2:49 pm
Forum: *Alkenes
Topic: 2-Methyl-2,3-butadiene
Replies: 3
Views: 500

Re: 2-Methyl-2,3-butadiene

i think its fastest to draw up quick line structure and simply count up the number of C atoms and the number of H atoms. Your resulting formula should end up in the form CyHx where y=#of Catoms and x=#of H atoms
by JasmineAlberto4J
Sat Feb 27, 2016 2:42 pm
Forum: *Cycloalkenes
Topic: drawing cycloalkenes
Replies: 2
Views: 434

Re: drawing cycloalkenes

Since its butane I don't think there is a double bond. I think you can just attach your ethyl to any carbon if this is all the info they give you
by JasmineAlberto4J
Sat Feb 27, 2016 2:40 pm
Forum: *Alkanes
Topic: Alkanes vs. Alkenes
Replies: 1
Views: 288

Re: Alkanes vs. Alkenes

an alkene will be a molecule with at least one double bond(unsaturated) and alkane has only single bonds(saturated)
by JasmineAlberto4J
Thu Feb 18, 2016 4:31 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Pre-equlibruim aproach
Replies: 1
Views: 344

Pre-equlibruim aproach

What is the pre-equilibrium approach and when do you use it?
by JasmineAlberto4J
Thu Feb 18, 2016 11:49 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Work
Replies: 3
Views: 597

Re: Work

yes
by JasmineAlberto4J
Thu Feb 18, 2016 11:46 am
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Forward rate=Reverse rate
Replies: 2
Views: 774

Re: Forward rate=Reverse rate

K is based off of the concentrations of products and reactants. If a reaction is at equilibrium, the rate of that the forward reaction is occurring is equal to the rate that the reverse reaction is occurring. For a reaction to be at equilibrium, the concentrations of the products don't have to equal...
by JasmineAlberto4J
Wed Feb 17, 2016 9:51 am
Forum: General Rate Laws
Topic: Rate Laws in Graphs
Replies: 1
Views: 467

Re: Rate Laws in Graphs

The difference stems from the fact that you need the graph to be linear.if you plot the concentration against time and the graph is curved, you take the ln of your plotted concentrations, if the graph is still curved we plot the reciprocal of the concentration( 1/[A] ). if your graph is linear by on...
by JasmineAlberto4J
Wed Feb 17, 2016 9:17 am
Forum: General Rate Laws
Topic: Quiz #9
Replies: 1
Views: 345

Re: Quiz #9

first determine what order it is and use one of the integrated rate laws i.e(ln[A] if 1st order, 1/[A] if 2nd etc.)
by JasmineAlberto4J
Mon Feb 08, 2016 5:21 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Work
Replies: 3
Views: 597

Re: Work

w=-delta n RT
by JasmineAlberto4J
Mon Feb 08, 2016 5:19 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: Adiabatic
Replies: 2
Views: 343

Re: Adiabatic

yes. q=heat and in an adiabatic system there is no heat flow
by JasmineAlberto4J
Sun Feb 07, 2016 1:43 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Winter 2011 Midterm Question #5C
Replies: 2
Views: 313

Re: Winter 2011 Midterm Question #5C

you are looking for the mass of glucose required to form myoglobin. We know that one mol of glucose releases 2885 kJ of energy, but myoglobin only requires 2448 kJ of energy go we anticipate that less than one mole of glucose will be needed to form myoglobin. using stoichiometry we find the fraction...
by JasmineAlberto4J
Sun Feb 07, 2016 1:35 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Winter 2011 Midterm Question #5C
Replies: 2
Views: 313

Re: Winter 2011 Midterm Question #5C

you get 2885 from your answer from part b
by JasmineAlberto4J
Sun Feb 07, 2016 1:24 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Self-Test 14.3A
Replies: 2
Views: 338

Re: Self-Test 14.3A

your cell potential will be E, the +1.25V and your n, the moles of electrons, will be found when you balance the half reactions. F is a constant so just plug in the numbers and you will find delta G
by JasmineAlberto4J
Sun Jan 31, 2016 11:20 pm
Forum: Balancing Redox Reactions
Topic: H2O in balancing
Replies: 2
Views: 288

Re: H2O in balancing

you add h20 to balance any oxygens. This process is very well explained in the book on page 563 in example 14.1
by JasmineAlberto4J
Mon Jan 25, 2016 10:35 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bonds Formed v Bonds Broken
Replies: 1
Views: 277

Bonds Formed v Bonds Broken

For bond enthalpy questions how do decide which ones are formed and which ones are broken?
by JasmineAlberto4J
Sun Jan 24, 2016 10:41 am
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: Entropy of Ice With Boltzmann Formula
Replies: 2
Views: 384

Re: Entropy of Ice With Boltzmann Formula

Ice, a solid, at 0'C still has vibrations between its molecules, they just don't have as much disorder as a liquid or a gas.
by JasmineAlberto4J
Sun Jan 24, 2016 10:38 am
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Homework 9.5- Initial change in entropy negative?
Replies: 2
Views: 463

Re: Homework 9.5- Initial change in entropy negative?

You don't really have to differentiate between what is the system and what is the surrounding in this case. The main concept here is that heat lost(released, transferred from) is always denoted with a negative sign and heat gained(absorbed, transferred to) is denoted with a positive sign.
by JasmineAlberto4J
Fri Jan 15, 2016 11:34 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: 8.31 heat released by Krypton gas
Replies: 3
Views: 877

Re: 8.31 heat released by Krypton gas

Madeline Offerman 3G wrote:Where did you get 5/2R and what is R?

R is the gas constant and 5/2 R is the formula to find the heat capacity (C) of a monatomic gas
by JasmineAlberto4J
Tue Jan 12, 2016 11:09 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: 8.31 heat released by Krypton gas
Replies: 3
Views: 877

Re: 8.31

to solve this problem you will have to use q=nC \Delta T where n is the number of moles and C is the heat capacity and \Delta T is the change in temp. However, gasses have special heat capacities that depend on whether the system is at a constant pressure or a constant volume. You can find these spe...
by JasmineAlberto4J
Tue Jan 12, 2016 10:54 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Internal Energy Question
Replies: 2
Views: 532

Re: Internal Energy Question

Since we can never know the exact internal energy U. we always report internal energy as deltaU, or the change in internal energy, indicating a loss of internal energy with a negative sign and a gain of energy with a positive sign. In this case, 2.50kJ of energy is transferred into the system(a gain...
by JasmineAlberto4J
Mon Jan 11, 2016 11:15 pm
Forum: Phase Changes & Related Calculations
Topic: Question 8.87- Breaking phase changes up into steps [ENDORSED]
Replies: 4
Views: 604

Re: Question 8.87- Breaking phase changes up into steps [ENDORSED]

I don't know the answer to your other questions:(, but I do know that 2.03 is the specific heat capacity of ice
by JasmineAlberto4J
Mon Jan 11, 2016 11:12 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Possible Solutions Manual Error?
Replies: 2
Views: 284

Possible Solutions Manual Error?

for question 8.31, the solutions manual multiplies 5/2 R and gets 20.8J*mol^-1*C^-1 and then proceeds to cancel the unit C^-1 with the C of the delta T, but isn't the gas constant in units of J*mol^-1*K^-1*? so shouldn't there be a conversion to K of delta t somewhere in the solution?
by JasmineAlberto4J
Mon Jan 11, 2016 8:55 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: 8.19 part a
Replies: 3
Views: 368

Re: 8.19 part a

I believe you are using the wrong equation. The question is asking you to find heat (q), therefore you must use q=mCsΔT Cs= the specific heat capacity and these values are given to you on page 269. In this case you will use 4.184 since you're dealing with liquid water and .38 since you are dealing w...
by JasmineAlberto4J
Mon Jan 11, 2016 8:38 pm
Forum: Administrative Questions and Class Announcements
Topic: Chemistry Joke
Replies: 1
Views: 443

Chemistry Joke

@ChemistryCat
by JasmineAlberto4J
Fri Jan 08, 2016 11:43 am
Forum: Phase Changes & Related Calculations
Topic: The phase (gr)
Replies: 1
Views: 551

The phase (gr)

On pages 294 and 292, equations are listed and they include products in the phase gaseous (g), and liquid phase (l), but they also include the phase (gr). What phase is the (gr) phase?
by JasmineAlberto4J
Sat Dec 05, 2015 5:08 pm
Forum: *Titrations & Titration Calculations
Topic: 12.23
Replies: 11
Views: 1912

Re: 12.23

your final volume would be the the volume of your analyte plus the volume of titrant added
by JasmineAlberto4J
Thu Dec 03, 2015 2:15 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Using Moles in Ice Table
Replies: 1
Views: 4893

Re: Using Moles in Ice Table

ICE boxes are only used with M, molarity. In titration questions you will often see where moles are subtracted from one side of the equation to the other but what is used is not an ICE box as the equilibrium is not found, in the case of the titrations the "box" that is set up is just an or...
by JasmineAlberto4J
Wed Nov 25, 2015 12:44 am
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: Using Ka Kb and Kw to find K
Replies: 1
Views: 5701

Using Ka Kb and Kw to find K

I understand that Ka x Kb =Kw but what is the relationship between these three and K? how can you use these three to find K?
by JasmineAlberto4J
Thu Nov 19, 2015 9:15 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Finding Kc when given a percentage
Replies: 3
Views: 2039

Re: Finding Kc when given a percentage

8.12% of 2.80X10^-5 will equal your equilibrium expression. Set these two equal to each other 2.80X10^-5-2x= .0812x2.80x10^-5 and solve for x and then you can set up your equilibrium constant
by JasmineAlberto4J
Tue Nov 17, 2015 9:50 pm
Forum: Naming
Topic: Naming for NO2-
Replies: 1
Views: 318

Re: Naming for NO2-

Nitro if NO2
Nitrito if ONO
by JasmineAlberto4J
Tue Nov 17, 2015 9:47 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Do I use an ICE box?
Replies: 4
Views: 698

Re: Do I use an ICE box?

Amanda Reshke 1E wrote:I might be wrong, but you can probably just set the K equal to [products]/[reactants] and solve for Br (the product) (?)

I agree. if you set up K= [R]/[P] you are given K and are given R solve for P
by JasmineAlberto4J
Sun Nov 15, 2015 7:34 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 2014 Preparation #10 Ice Box
Replies: 2
Views: 510

Re: Quiz 3 2014 Preparation #10 Ice Box

Oh wow I didn't realize C was a solid thank you!
by JasmineAlberto4J
Sun Nov 15, 2015 3:18 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Finding Kc when given a percentage
Replies: 3
Views: 2039

Re: Finding Kc when given a percentage

I ignored the the percentage until the end. I constructed and icebox as if the problem hadn't given the percentage, solved for x, plugged that in to find the concentration of BrCL and then took 8.12% of that number
by JasmineAlberto4J
Sun Nov 15, 2015 2:32 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Number of sites a ligand binds
Replies: 2
Views: 376

Re: Number of sites a ligand binds

If a ligand is monodentate, It has one binding site, bidentate 2 sites, tridendate 3 etc.
by JasmineAlberto4J
Sun Nov 15, 2015 2:31 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Quiz 3 2014 Preparation #10 Ice Box
Replies: 2
Views: 510

Quiz 3 2014 Preparation #10 Ice Box

For the following reaction, if initially 0.100 mol of H2O (g) is placed in a 4.0 L vessel, what is the equilibrium partial pressures of each reactant and of each product?" H2O (g) + C(s) <-> H2 (g) + CO (g) Kp = 3.72 at 1000 K I understand i need to covert the H2O concentration to atm but I nee...
by JasmineAlberto4J
Fri Nov 13, 2015 10:13 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Naming the compounds
Replies: 3
Views: 505

Re: Naming the compounds

you must recall that a coordination compound is neutral. (don't confuse coordination compound with complex cation or anion). We know that and SO4 has a 2- charge so SO4)3 will have a 6- charge. both NH3 and H2O are neutral so the platinum must have a 3+ charge x2 will give you a 6+ charge and a neut...
by JasmineAlberto4J
Thu Nov 12, 2015 11:53 pm
Forum: Ideal Gases
Topic: Using R to find concentration
Replies: 3
Views: 594

Re: Using R to find concentration

PV=nRT when manipulated equals P=nRT/V Concentration = number of moles/volume = n/V You substitute this value into the equation and you get: P=MRT This should allow you to solve for the concentration in the problem. thank you so much but do you think you can go a bit more into detail? i'm not sure ...
by JasmineAlberto4J
Thu Nov 12, 2015 11:01 pm
Forum: Ideal Gases
Topic: Using R to find concentration
Replies: 3
Views: 594

Using R to find concentration

how do you use PV=nRT to find a concentration? This problem is from the pre assessment
by JasmineAlberto4J
Sat Nov 07, 2015 7:26 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: AX2E3 Shape
Replies: 7
Views: 2083

Re: AX2E3 Shape

Dimpy Warich 1I wrote:Do bent and angular mean the same thing?

yes
by JasmineAlberto4J
Sat Nov 07, 2015 6:15 pm
Forum: Photoelectric Effect
Topic: Work Function vs De Broglie
Replies: 4
Views: 3202

Re: Work Function vs De Broglie

the De Broglie equation is used when you are trying to find the wavelength of something with rest mass (i.e. an electron). A photon does not have rest mass so you use the equations E=Φ+ 1/2 mv^2 and λ=hc/E
by JasmineAlberto4J
Sat Nov 07, 2015 5:59 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: solvents in chemical equilibrium
Replies: 1
Views: 254

solvents in chemical equilibrium

in calculating K by using [P]/[R] the solvent is treated as a pure substance and ignored, from an equation how can you tell if something is a solvent?
by JasmineAlberto4J
Sat Nov 07, 2015 4:14 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: solvents in chemical equilibrium
Replies: 1
Views: 278

solvents in chemical equilibrium

in calculating K by using [P]/[R] the solvent is treated as a pure substance and ignored, from an equation how can you tell if something is a solvent?
by JasmineAlberto4J
Sat Nov 07, 2015 4:11 pm
Forum: Photoelectric Effect
Topic: when to use photoelectric effect or debroglie?
Replies: 3
Views: 1064

Re: when to use photoelectric effect or debroglie?

the de broglie equation is used for things with rest mass. An electron has rest mass so in finding its wave length you use de broglie. A photon doesn't not have rest mass so you use photoelectric equations, E=Φ+1/2 mv^2 and λ= hc/E
by JasmineAlberto4J
Sat Nov 07, 2015 12:22 pm
Forum: Naming
Topic: Coordination Compound Formulas OH2 vs H20
Replies: 1
Views: 226

Coordination Compound Formulas OH2 vs H20

in writing a formula for a coordination compound, when is it appropriate to write aqua as H20 and when shout it be written as OH2?
for ex Na[Fe(OH2)2) (C2O4)2] vs. Na[Fe(H20)2) (C2O4)2] for the compound sodium bioxolato(diaqua)ferrate(III)
This is HW problem #17.31c
by JasmineAlberto4J
Sat Nov 07, 2015 9:21 am
Forum: Naming
Topic: Naming Coordination Compounds
Replies: 1
Views: 262

Naming Coordination Compounds

.
by JasmineAlberto4J
Tue Nov 03, 2015 7:11 pm
Forum: Trends in The Periodic Table
Topic: Ionic Radius of Ions
Replies: 2
Views: 499

Re: Ionic Radius of Ions

this table shows the different sizes
by JasmineAlberto4J
Tue Nov 03, 2015 7:03 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: D-orbital in MO Diagram ...?
Replies: 1
Views: 505

Re: D-orbital in MO Diagram ...?

I believe we were told that we wouldn't be asked to draw MO diagrams for anything with a d orbital
by JasmineAlberto4J
Tue Nov 03, 2015 11:13 am
Forum: Properties of Electrons
Topic: Midterm Speed Of Light
Replies: 1
Views: 477

Midterm Speed Of Light

On the midterm review questions, I have noticed that there is a variation in what number to plug in for the speed of light, in some problems 2.998X10^8 is used and in some 2.9978X10^ and in other 3.00x10^8 I've noticed that each will give a different number, how do we decide when to use which?
by JasmineAlberto4J
Wed Oct 28, 2015 12:06 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: N2+
Replies: 2
Views: 1223

Re: N2+

N has Z<8 so the π level will be filled first
by JasmineAlberto4J
Tue Oct 27, 2015 8:40 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Lewis Dot Structure and Formal Charge
Replies: 3
Views: 627

Re: Lewis Dot Structure and Formal Charge

nitrogen follows the octet rule and can't have more than 8 e-
by JasmineAlberto4J
Tue Oct 27, 2015 8:16 pm
Forum: Ionic & Covalent Bonds
Topic: 3.21 Ground state
Replies: 5
Views: 842

Re: 3.21 Ground state

When figuring out if one of the elements has paired or unpaired electrons you look at the valence electrons, correct? Then when the ion is positive or negative it will either add or subtract electrons from the atom. However, I still do not exactly know how to find out if the electrons are paired or...
by JasmineAlberto4J
Tue Oct 27, 2015 7:46 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Bond Angles
Replies: 1
Views: 350

Re: Bond Angles

you can just leave it as <109.5
by JasmineAlberto4J
Tue Oct 20, 2015 11:42 pm
Forum: Hybridization
Topic: Chapter 3.5
Replies: 4
Views: 733

Re: Chapter 3.5

Similarly for Ag+, you first start of with your configuration for Ag, [Kr]4d10 5s1 ( Ag has one of those configurations that don't follow your "regular" counting methods) and to get Ag+ you remove an electron, When removing an electron we start from the lowest energy level so in this case ...
by JasmineAlberto4J
Tue Oct 20, 2015 11:37 pm
Forum: Hybridization
Topic: Chapter 3.5
Replies: 4
Views: 733

Re: Chapter 3.5

to find the electron configuration of Ga3+ first start of with your configuration for Ga [Ar]3d10 4s2 4p1 (remember that the d block is higher energy than s so it goes first in the configuration) to get Ga3+ we must remove 3 electrons to give it a 3+ charge.In this case your first electron comes out...
by JasmineAlberto4J
Tue Oct 20, 2015 11:28 pm
Forum: Ionic & Covalent Bonds
Topic: 3.21 Ground state
Replies: 5
Views: 842

Re: 3.21 Ground state

Though the electron configuration might be the same, you must remember that a palladium atom an a Ag+ cation are two different things. When an Ag atom becomes an Ag+ cation, it loses an electron and consequently has the same number of valence electrons as a palladium atom but it doesn't become a pal...
by JasmineAlberto4J
Sun Oct 11, 2015 10:43 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Rydberg Formula
Replies: 3
Views: 1946

Re: Rydberg Formula

if you use the equation from the book ν= R \left \{ \frac{1}{n^2 1} +\frac{1}{n^2 2} \right \} n1 will equal your final energy level and n2 will equal your initial energy level. So if you transition from n=4 to n=2, n=2 is your final energy level ( 2=n1) and n=4 is your initial energy level (4=n1). ...
by JasmineAlberto4J
Fri Oct 02, 2015 7:08 pm
Forum: Properties of Light
Topic: Wave Energy Comic Strip
Replies: 3
Views: 580

Wave Energy Comic Strip

I found this comic and I thought it might help in remembering which waves have a higher energy:)
by JasmineAlberto4J
Thu Oct 01, 2015 10:58 pm
Forum: Photoelectric Effect
Topic: eV to J
Replies: 1
Views: 357

eV to J

how do convert eV to J when dealing with the work function in photoelectric problems?
by JasmineAlberto4J
Thu Oct 01, 2015 10:45 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: How to obtain wavelength using the Rydberg formula
Replies: 3
Views: 700

Re: How to obtain wavelength using the Rydberg formula

The Rydberg equation actually gives you the frequency (when R is equal to Rydberg constant, 3.29x10^15 s^-1) after finding your frequency you can use νλ=c to find the wavelength (λ) by plugging in your frequency (ν) from the Rydberg equation and the speed of light (c) which ≈ 2.988 x 10 ^8 ms^-1
by JasmineAlberto4J
Mon Sep 28, 2015 10:07 am
Forum: Significant Figures
Topic: Common molar masses to remember
Replies: 3
Views: 660

Re: Common molar masses to remember

Thanks!
by JasmineAlberto4J
Sun Sep 27, 2015 4:19 pm
Forum: Empirical & Molecular Formulas
Topic: Writing formulas
Replies: 2
Views: 536

Writing formulas

(F.3) How do you write the formula for nitric acid? and How do you, without doing a calculation, estimate which element occurs with the greatest mass percentage?

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