Search found 30 matches
- Sat Dec 08, 2018 2:32 am
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: 6th Edition Ch12 #49
- Replies: 1
- Views: 197
Re: 6th Edition Ch12 #49
if it has a smaller pkb, then it has a stronger base but I think lavelle said that we learn that in 14b so we don't really need to know it for the test.
- Sat Dec 08, 2018 2:25 am
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: strong vs weak acids
- Replies: 5
- Views: 600
Re: strong vs weak acids
There is a table in the textbook that is nicely organized, but for binary, the more polar, the stronger the acid and the more weaker the H-A bond, the stronger the acid. For Oxoacids, the greater the number of Oxygen atoms attached to the central atom gives a stronger acid. If it has the same number...
- Sat Dec 08, 2018 2:22 am
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: Ka and Kb on Final
- Replies: 9
- Views: 2749
Re: Ka and Kb on Final
we don't need to Ka and Kb
- Sat Dec 08, 2018 2:20 am
- Forum: Naming
- Topic: order of ligands when going from name to formula
- Replies: 3
- Views: 413
Re: order of ligands when going from name to formula
in alphabetical order!
Re: Naming
it's in alphabetical order and then the ligand is before the transitional metal atom and you have to use prefixes to indicate the number of ligands.
- Tue Nov 27, 2018 9:45 am
- Forum: Dipole Moments
- Topic: Polarizability vs Polarizing power
- Replies: 8
- Views: 670
Re: Polarizability vs Polarizing power
polarizing power is the way that cations pull electrons from anions
polarizability is the ability to pull the electrons towards the anions
polarizability is the ability to pull the electrons towards the anions
- Sun Nov 25, 2018 8:19 pm
- Forum: Hybridization
- Topic: Test 3
- Replies: 13
- Views: 830
Re: Test 3
Ionic vs. covalent bonds, the strengths, and then chapter 6. I would just look at the textbook to see what will be on the test.
- Sun Nov 25, 2018 8:17 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Naming the Shape
- Replies: 16
- Views: 1206
Re: Naming the Shape
I think I remember him saying that we won't have to draw it, but I'm not completely sure.
- Sun Nov 25, 2018 8:15 pm
- Forum: Hybridization
- Topic: Polar vs Non Polar
- Replies: 3
- Views: 354
Re: Polar vs Non Polar
You will either get the electronegativity and if the difference is greater than 0.4, then it will be polar.
If you aren't given the electronegativities, then you have to find it by looking at the shape of the lewis structure
If you aren't given the electronegativities, then you have to find it by looking at the shape of the lewis structure
- Sun Nov 18, 2018 9:27 pm
- Forum: Dipole Moments
- Topic: Test
- Replies: 15
- Views: 1242
Re: Test
It's after Thanksgiving break during week 9
- Sun Nov 18, 2018 9:27 pm
- Forum: Properties of Light
- Topic: Test 3
- Replies: 24
- Views: 2110
Re: Test 3
You have to know the lewis structure to do other problems, so I think that it would be incorporated into the test.
- Sun Nov 18, 2018 9:25 pm
- Forum: General Science Questions
- Topic: Thanksgiving Week
- Replies: 8
- Views: 892
Re: Thanksgiving Week
My TA actually recommends us to go to other discussions if we don't understand something, so I'm sure it would be okay if you would like to join a different discussion.
- Wed Nov 14, 2018 12:29 am
- Forum: Octet Exceptions
- Topic: What are the octet exceptions?
- Replies: 9
- Views: 1049
Re: What are the octet exceptions?
I’m pretty sure there was an exception to Boron for the octet rule.
- Wed Nov 14, 2018 12:27 am
- Forum: Lewis Structures
- Topic: Octet rule question
- Replies: 6
- Views: 762
Re: Octet rule question
Every element after period 2 can follow the octet rule.
- Wed Nov 14, 2018 12:18 am
- Forum: Significant Figures
- Topic: When to round the answers to significant figures
- Replies: 11
- Views: 2573
Re: When to round the answers to significant figures
I usually round at the very end so I save the numbers in the calculator before rounding the final answer
- Sun Nov 04, 2018 6:53 pm
- Forum: Properties of Light
- Topic: Standard Units
- Replies: 8
- Views: 762
Re: Standard Units
Normally m, but in the solutions manual, they give both m and nm so I think both will be good
- Sun Nov 04, 2018 6:52 pm
- Forum: Electronegativity
- Topic: How much can you round down for empirical formulas?
- Replies: 2
- Views: 1000
Re: How much can you round down for empirical formulas?
Ya I heard 5%, but I think also if it's not a number that can't really be multiplied to get a whole number, then it should be close enough to round up or down
- Sun Nov 04, 2018 6:43 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Post-Module Q#18
- Replies: 3
- Views: 666
Re: Post-Module Q#18
The radius of the atom represents 1/2 of the uncertainty of the position of the electron, the diameter equaling the entire uncertainty. the size of the atom represents the uncertainty in position. You can use this uncertainty, as well as the mass of an electron and the constant h/4pi to calculate de...
- Sun Oct 28, 2018 10:00 pm
- Forum: Ionic & Covalent Bonds
- Topic: the Octet rule
- Replies: 21
- Views: 4009
Re: the Octet rule
Most of them follow the rules, but I know that Boron is an exception to it even though it only has 6 valence electrons.
- Sun Oct 28, 2018 9:58 pm
- Forum: Ionic & Covalent Bonds
- Topic: Lewis Dot Structures: Ionization Energy
- Replies: 6
- Views: 739
Re: Lewis Dot Structures: Ionization Energy
Mostly because it has the most open spaces to add
- Sun Oct 28, 2018 9:53 pm
- Forum: Lewis Structures
- Topic: Boron as the Lewis Structure Exception
- Replies: 1
- Views: 192
Re: Boron as the Lewis Structure Exception
because Boron itself is already stable. It doesn't really make sense because there are rules, but there are a few violations that go against the octet rule.
- Sun Oct 28, 2018 9:43 pm
- Forum: Lewis Structures
- Topic: Dot's in the Lewis Structure
- Replies: 10
- Views: 2226
Re: Dot's in the Lewis Structure
Ya! it doesn't matter in what order you place it
- Sun Oct 28, 2018 9:19 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Units
- Replies: 8
- Views: 670
Re: Units
I've always changed it
- Sun Oct 28, 2018 9:12 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm
- Replies: 11
- Views: 875
Re: Midterm
I think we have another test after midterms over #3, so they should be equal
- Fri Oct 12, 2018 3:35 pm
- Forum: Properties of Electrons
- Topic: Quantum Theory 1.27
- Replies: 1
- Views: 234
Re: Quantum Theory 1.27
Find the energy from the lamp by multiplying 32*2=64. Then you can calculate the energy because wavelength is given by using E=hc/wavelength. Divide 64 by what you get to get the number of photons.
- Fri Oct 12, 2018 3:32 pm
- Forum: Einstein Equation
- Topic: Homework Problem 1A.15
- Replies: 1
- Views: 243
Re: Homework Problem 1A.15
Since the emission is ultraviolet, the transition is in the Lyman Series, n2=1. Convert the 102.6 nm into energy and then plug it into the rydberg formula to solve for n1.
- Mon Oct 08, 2018 5:20 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Periodic Table
- Replies: 6
- Views: 513
Periodic Table
Will we be getting periodic tables during the test, or do we have to bring our own?
- Fri Oct 05, 2018 4:32 pm
- Forum: Limiting Reactant Calculations
- Topic: Mole Ratios Within the Conversion
- Replies: 3
- Views: 341
Re: Mole Ratios Within the Conversion
Idk if I completely get your question, but I think you have to find the limiting reactant between CO2 and H20, then whichever one is the limiting reactant (let's say CO2), you would have to multiply the limiting reactant to the ratio of the moles. So mole of O2 (6) would be on the numerator and mole...
- Fri Oct 05, 2018 4:25 pm
- Forum: Properties of Light
- Topic: Homework Question
- Replies: 2
- Views: 285
Re: Homework Question
I think so
- Fri Oct 05, 2018 4:18 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Problem G5
- Replies: 8
- Views: 707
Re: Problem G5
Molarity=moles of solute (n)/volume of solution (v) is essentially the same thing as Mi*Vi=Mf*Vf. If you multiply the volume of solution over to Molarity, you get M*V=n and n initial= n final, which gives you m initial* v initial= mfinal* vfinal. You just see what information is given to you and the...