Search found 57 matches
- Fri Dec 06, 2019 6:46 pm
- Forum: Lewis Acids & Bases
- Topic: In a neutralization reaction, are there still lewis acids/bases?
- Replies: 2
- Views: 31
In a neutralization reaction, are there still lewis acids/bases?
Wouldn't they both make H2O?
- Fri Dec 06, 2019 6:44 pm
- Forum: Naming
- Topic: Do we put metal last in the name?
- Replies: 1
- Views: 29
Do we put metal last in the name?
Or do we follow the order by the chemical name
- Fri Dec 06, 2019 6:43 pm
- Forum: Naming
- Topic: How to find out the oxidation number?
- Replies: 3
- Views: 36
How to find out the oxidation number?
Like the Fe in porphyrins especially
- Fri Dec 06, 2019 6:42 pm
- Forum: Properties & Structures of Inorganic & Organic Bases
- Topic: What makes an acid more corrosive?
- Replies: 1
- Views: 44
What makes an acid more corrosive?
I heard that concentration did not matter?
- Fri Dec 06, 2019 6:41 pm
- Forum: Properties & Structures of Inorganic & Organic Bases
- Topic: Is trichloroacetic acid stronger than acetic acid?
- Replies: 1
- Views: 45
- Wed Nov 27, 2019 12:14 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Acid/base strength?
- Replies: 4
- Views: 41
Acid/base strength?
What determines the strengths of acids and bases? Is it concentration?
- Wed Nov 27, 2019 12:13 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: How to take the log to get the pH?
- Replies: 8
- Views: 61
How to take the log to get the pH?
What does the math function mean?
- Wed Nov 27, 2019 12:12 pm
- Forum: Bronsted Acids & Bases
- Topic: Difference between bronsted and lewis acid/base?
- Replies: 6
- Views: 37
Difference between bronsted and lewis acid/base?
Which one do we use to define base/acid?
- Wed Nov 27, 2019 12:12 pm
- Forum: Lewis Acids & Bases
- Topic: Lewis acid vs regular acid?
- Replies: 4
- Views: 28
Lewis acid vs regular acid?
What is the difference?
- Wed Nov 27, 2019 12:11 pm
- Forum: Lewis Acids & Bases
- Topic: What is the correct definition of a base?
- Replies: 5
- Views: 51
What is the correct definition of a base?
And difference between base and lewis base?
- Tue Nov 19, 2019 11:54 am
- Forum: Hybridization
- Topic: test 2
- Replies: 6
- Views: 58
test 2
Is hybridization going to be the main topic on test 2?
- Tue Nov 19, 2019 11:53 am
- Forum: Hybridization
- Topic: What are pi bonds in relation to sigma?
- Replies: 2
- Views: 21
What are pi bonds in relation to sigma?
Why can pi bonds only be formed when sigma bonds are already formed?
- Tue Nov 19, 2019 11:53 am
- Forum: Hybridization
- Topic: How to do 2.F.7?
- Replies: 1
- Views: 19
How to do 2.F.7?
Is orbitals counted by number of bonds + lone pairs?
- Tue Nov 19, 2019 11:52 am
- Forum: Hybridization
- Topic: Is hybridized orbitals all weighed equally in character?
- Replies: 4
- Views: 31
Is hybridized orbitals all weighed equally in character?
for example, is sp2 33% s?
- Tue Nov 19, 2019 11:52 am
- Forum: Hybridization
- Topic: When does hybridization not apply?
- Replies: 1
- Views: 25
When does hybridization not apply?
Or is it always applied?
- Thu Nov 14, 2019 3:58 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: why are double bonds equally weighted as single ones when drawing models?
- Replies: 10
- Views: 85
why are double bonds equally weighted as single ones when drawing models?
shouldn't there be twice as much e- and therefore twice as much weight?
- Thu Nov 14, 2019 3:57 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Do we need to know bent structures?
- Replies: 5
- Views: 43
Do we need to know bent structures?
do we need them for the test?
- Thu Nov 14, 2019 3:56 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Trigonal pyramidal angles
- Replies: 4
- Views: 34
Trigonal pyramidal angles
Why are the angles 109.5? they don't add up to 360?
- Thu Nov 14, 2019 3:55 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: How do we experimentally determine shapes?
- Replies: 1
- Views: 24
How do we experimentally determine shapes?
VSEPR model is based off experiments, but how could we have seen the shapes in real life?
- Thu Nov 14, 2019 3:54 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: How to study for test 2?
- Replies: 3
- Views: 37
How to study for test 2?
Is it going to be just on VSEPR?
- Thu Nov 07, 2019 10:30 am
- Forum: Octet Exceptions
- Topic: Why can't Aluminum have an expanded octet?
- Replies: 5
- Views: 96
Why can't Aluminum have an expanded octet?
Does Al not have access to the d orbitals? why?
- Thu Nov 07, 2019 10:30 am
- Forum: Bond Lengths & Energies
- Topic: Resonance structure bond lengths?
- Replies: 3
- Views: 47
Resonance structure bond lengths?
So we talked about in lecture about how the bond length in a resonance structure is a number in between the two types of bonds because the e- forms a cloud. If that is the case, how could this cloud of electrons have a bond length at all?
- Thu Nov 07, 2019 10:29 am
- Forum: Lewis Structures
- Topic: Lewis acids and bases?
- Replies: 7
- Views: 50
Lewis acids and bases?
Do we need to know the lewis acids and bases for the next test?
- Thu Nov 07, 2019 10:28 am
- Forum: Lewis Structures
- Topic: Does the shape that I draw the Lewis structure matter?
- Replies: 14
- Views: 87
Does the shape that I draw the Lewis structure matter?
Like say I have C02, could i have the Oxygens sandwich the carbon, as well as one above, and one below the carbon?
- Thu Nov 07, 2019 10:27 am
- Forum: Formal Charge and Oxidation Numbers
- Topic: Do higher electronegativity atoms tend to draw more electrons to them?
- Replies: 6
- Views: 36
Do higher electronegativity atoms tend to draw more electrons to them?
And thus making their formal charge negative?
- Wed Oct 30, 2019 11:25 pm
- Forum: Trends in The Periodic Table
- Topic: Does H have the highest ionization energy?
- Replies: 4
- Views: 38
Does H have the highest ionization energy?
Since it only has one electron?
- Wed Oct 30, 2019 11:24 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Which orbital would contain the highest ionization energy?
- Replies: 3
- Views: 30
- Wed Oct 30, 2019 11:24 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: D orbital
- Replies: 5
- Views: 44
D orbital
Why does it have 5 orbitals? Does it mean it can hold 10 electrons?
- Wed Oct 30, 2019 11:21 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: What are the octet exceptions?
- Replies: 11
- Views: 83
What are the octet exceptions?
And why?
- Wed Oct 30, 2019 11:20 pm
- Forum: Electronegativity
- Topic: Electron Negativity vs affinity?
- Replies: 5
- Views: 35
Electron Negativity vs affinity?
If they follow the same trends on the periodic table, why do we keep these separate measurements?
- Wed Oct 30, 2019 11:17 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Why does formal charge indicate stability?
- Replies: 3
- Views: 48
Why does formal charge indicate stability?
Why does it?
- Wed Oct 23, 2019 11:34 pm
- Forum: Ionic & Covalent Bonds
- Topic: How are lewis structures filled?
- Replies: 6
- Views: 48
How are lewis structures filled?
Does one side have to be filled first before others are filled?
- Wed Oct 23, 2019 11:33 pm
- Forum: Ionic & Covalent Bonds
- Topic: What are the exceptions to the octet rule?
- Replies: 5
- Views: 72
What are the exceptions to the octet rule?
H, He, and what else?
- Wed Oct 23, 2019 11:32 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: How do i do 1.D.25?
- Replies: 2
- Views: 34
How do i do 1.D.25?
What is the orbital g?
- Wed Oct 23, 2019 11:28 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: how to do 1.D.23?
- Replies: 2
- Views: 40
how to do 1.D.23?
The answer key says 6 orbitals can have n=2 l=1, how is that possible?
- Wed Oct 23, 2019 11:27 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: What's the difference between subshell vs orbitals?
- Replies: 8
- Views: 74
What's the difference between subshell vs orbitals?
They seem like the same thing?
- Sun Oct 20, 2019 3:37 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Inverse Relation
- Replies: 3
- Views: 66
Inverse Relation
Why is uncertainty in momentum and position inversely related?
- Sun Oct 20, 2019 3:36 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty value
- Replies: 4
- Views: 35
Uncertainty value
If the uncertainty in position is + - 5 mm, would the uncertainty be 10mm or 5mm?
- Sun Oct 20, 2019 3:35 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: 1.B.27
- Replies: 1
- Views: 37
1.B.27
I cannot seem to find the right solution to this question, could somebody please explain to me the processes?
- Sun Oct 20, 2019 3:34 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: 1.B.15?
- Replies: 2
- Views: 19
1.B.15?
Could anybody explain this homework assignment to me?
- Sun Oct 20, 2019 3:33 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: What does the H mean?
- Replies: 9
- Views: 57
What does the H mean?
What does the h with the dash mean? Is it the same as me just using h/4pi ?
- Thu Oct 10, 2019 9:27 pm
- Forum: Properties of Light
- Topic: Homework question 1E.5?
- Replies: 1
- Views: 65
Homework question 1E.5?
Couldn't figure it out, help me out please!
- Thu Oct 10, 2019 9:26 pm
- Forum: Properties of Light
- Topic: Homework question 1D11?
- Replies: 1
- Views: 31
Homework question 1D11?
Thank you!
- Thu Oct 10, 2019 9:24 pm
- Forum: Properties of Light
- Topic: Speed of light
- Replies: 9
- Views: 66
Speed of light
How can problems require us to use constant c=speed of light, when speed of light differs across mediums?
- Thu Oct 10, 2019 9:23 pm
- Forum: Properties of Light
- Topic: models of light
- Replies: 5
- Views: 80
models of light
How are the two models -photon and wave model- different? How are they useful in their own way?
- Thu Oct 10, 2019 9:22 pm
- Forum: Properties of Light
- Topic: Electromagnetic Spectrum
- Replies: 4
- Views: 53
Electromagnetic Spectrum
For the course, do we need to memorize the wavelenghts of different waves like visible light?
- Thu Oct 03, 2019 5:25 pm
- Forum: Properties of Light
- Topic: What does μm mean?
- Replies: 4
- Views: 77
What does μm mean?
Saw it on the electromagnetic spectrum in one of the questions, what does it mean?
- Thu Oct 03, 2019 5:22 pm
- Forum: Properties of Light
- Topic: Frequency and Hertz
- Replies: 5
- Views: 59
Re: Frequency and Hertz
Oscillation by itself is a unit, hence it is oscillation/s = hertz
- Thu Oct 03, 2019 5:20 pm
- Forum: Properties of Light
- Topic: homework problem
- Replies: 1
- Views: 31
homework problem
How would one calculate 1A.8? Thanks in advance.
- Thu Oct 03, 2019 5:18 pm
- Forum: Properties of Light
- Topic: CHEM 1A
- Replies: 2
- Views: 44
CHEM 1A
What happens to the energy between the energy levels? The book says that the energy is carried away by electromagnetic radiations from the atom, but wouldn't that be light still?
- Thu Oct 03, 2019 5:16 pm
- Forum: Properties of Light
- Topic: Homework question
- Replies: 1
- Views: 45
Homework question
How do you do 1A: 3 ?
Which ones would decrease?
Which ones would decrease?
- Sun Sep 29, 2019 1:30 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: Dilution
- Replies: 9
- Views: 172
Re: Dilution
Even though some mols of substance is diluted in another container, those specific mols do not change as mols measure an actual amount and not a concentration.
- Sun Sep 29, 2019 1:29 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: homework question G5
- Replies: 2
- Views: 41
homework question G5
Doesn't it just dissolve into ions or is there a more complicated solution?
- Sun Sep 29, 2019 1:26 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: How was a mole originally determined?
- Replies: 3
- Views: 60
How was a mole originally determined?
Why is it supposed to be 6.022 * 10^23? Who made the avocado's number? Who is Avocado?
- Sun Sep 29, 2019 1:20 pm
- Forum: Balancing Chemical Reactions
- Topic: Equations Balancing
- Replies: 6
- Views: 138
Equations Balancing
Is there a faster method than the brute force method to try to balance equations? For now I just compute every possibility. Anything more efficient? What are some tricks?
- Sun Sep 29, 2019 1:19 pm
- Forum: Balancing Chemical Reactions
- Topic: Equations
- Replies: 5
- Views: 137
Equations
Say there's an equation H+O2 -> and you have to balance it.
However, where do the extra elements come from?
However, where do the extra elements come from?
- Sun Sep 29, 2019 1:14 pm
- Forum: Significant Figures
- Topic: How to do sig figs multiplication?
- Replies: 2
- Views: 30
How to do sig figs multiplication?
Say I have the equation 7.1 * 8.25 = x
how many sig figs would I have in the answer?
how many sig figs would I have in the answer?