Search found 55 matches
- Thu Dec 05, 2019 5:17 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Acid Strength
- Replies: 5
- Views: 372
Re: Acid Strength
Would H3PO4 or HClO4 be the stronger acid in part D of 6C.19?
- Thu Dec 05, 2019 4:55 pm
- Forum: Bronsted Acids & Bases
- Topic: J.7
- Replies: 8
- Views: 456
Re: J.7
Since this is a neutralization problem, your products are water and whatever they give you; now, you need to figure out what its reactants are from those. So, for A, you see that KBr and H2O are the products. So, the reactants must be KOH (base) and HBr (acid). This combination of H+ ions and OH- i...
- Wed Dec 04, 2019 10:53 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Stronger acid?
- Replies: 13
- Views: 1191
Stronger acid?
Which would be the stronger acid HClO or HClO2? I know that you first look at bond length and then anion strength but how would you figure this one out?
- Wed Dec 04, 2019 10:45 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Acid Strength
- Replies: 5
- Views: 372
Acid Strength
When determining the strength of acid between two compounds, do you first look at bond length or anion strength or both? This is in regards to question 6C.19. Thanks!
- Wed Dec 04, 2019 10:26 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Resonance and Acid strength
- Replies: 1
- Views: 201
Resonance and Acid strength
What does resonance have to do with acid strength? Thanks
- Tue Dec 03, 2019 7:02 pm
- Forum: Conjugate Acids & Bases
- Topic: Bronsted Base question
- Replies: 2
- Views: 267
Bronsted Base question
What would be the bronsted base in homework question 6A.5? Would it be HPO42-?
- Tue Dec 03, 2019 6:04 pm
- Forum: Conjugate Acids & Bases
- Topic: Conjugate Base
- Replies: 4
- Views: 319
Conjugate Base
How would you make CH3COOH a conjugate base? I know you have to remove a H+ but do you remove it from the H3 or the H at the end?
- Tue Dec 03, 2019 5:44 pm
- Forum: Conjugate Acids & Bases
- Topic: 6A.1
- Replies: 6
- Views: 779
Re: 6A.1
I get that for a conjugate acid you add an H and add + to overall charge. But, for part a), would you add the H to the H of CH3 or the H of NH2?
- Mon Dec 02, 2019 8:57 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Inorganic vs organic
- Replies: 3
- Views: 216
Re: Inorganic vs organic
Thank you guys that makes so much more sense!
Re: 9C.3
Why is it K3 and Br3 and not just K and Br?
- Mon Dec 02, 2019 1:51 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Inorganic vs organic
- Replies: 3
- Views: 216
Inorganic vs organic
What is the difference between an inorganic vs organic compound?
- Mon Dec 02, 2019 1:29 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: 9C.9
- Replies: 1
- Views: 215
9C.9
Can someone please explain what 9C.9 is asking?
9C.3
Could someone post the correct formulas for a-d? I want to check my answers and make sure they are exactly correct with parentheses and brackets.
- Mon Dec 02, 2019 12:29 pm
- Forum: Naming
- Topic: 9C 1 part D
- Replies: 2
- Views: 219
9C 1 part D
Can someone help me with 9C.1 part D? how do you know charge of SO4?
- Mon Dec 02, 2019 12:23 pm
- Forum: Naming
- Topic: Hw 9c.1 part c
- Replies: 5
- Views: 442
Re: Hw 9c.1 part c
Why is it colbalt (III)? What is the oxidation number of the metal?
9C.1 B
Can someone explain 9c.1 part B for me? how do i find the charge of cobalt?
- Sun Dec 01, 2019 9:27 pm
- Forum: Naming
- Topic: Naming for the final
- Replies: 6
- Views: 469
Re: Naming for the final
This is all very helpful thank you so much
- Sun Dec 01, 2019 9:03 pm
- Forum: Naming
- Topic: Neutral Ligands
- Replies: 2
- Views: 244
Neutral Ligands
What are some examples of neutral ligands?
- Sun Dec 01, 2019 8:58 pm
- Forum: Naming
- Topic: Anionic ligand
- Replies: 2
- Views: 204
Anionic ligand
What is an anionic ligand and what does it have to do with naming?
- Sun Dec 01, 2019 8:52 pm
- Forum: Naming
- Topic: Naming of coordination compounds
- Replies: 5
- Views: 432
Naming of coordination compounds
On the final how will we be asked to name compounds? Will we be given the formula first?
- Sun Dec 01, 2019 8:22 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: D-block
- Replies: 4
- Views: 378
D-block
In general, why do d-block elements behave differently than main-group elements?
- Sun Dec 01, 2019 8:07 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Inorganic or Organic
- Replies: 6
- Views: 446
Re: Inorganic or Organic
Thank you so much this was actually really helpful.
- Tue Nov 26, 2019 2:36 pm
- Forum: Bronsted Acids & Bases
- Topic: Bronsted Acids and Bases
- Replies: 6
- Views: 398
Bronsted Acids and Bases
Exactly what about the bronsted acids and bases are we expected to know besides naming them?
- Tue Nov 26, 2019 2:18 pm
- Forum: Bronsted Acids & Bases
- Topic: J.7
- Replies: 8
- Views: 456
J.7
Can someone please help me with this one?
"J.7 Select an acid and a base for a neutralization reaction that results in the formation of (a) potassium bromide; (b) zinc nitrite; (c) calcium cyanide, Ca(CN) 2 ; (d) potassium phosphate. Write the balanced equation for each reaction. "
"J.7 Select an acid and a base for a neutralization reaction that results in the formation of (a) potassium bromide; (b) zinc nitrite; (c) calcium cyanide, Ca(CN) 2 ; (d) potassium phosphate. Write the balanced equation for each reaction. "
- Wed Nov 20, 2019 7:49 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: Ion-dipole vs hydrogen bonding
- Replies: 2
- Views: 240
Ion-dipole vs hydrogen bonding
Which one would have the strongest interaction? I have seen it answered both ways and I am confused.
- Tue Nov 19, 2019 10:03 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: SO2 bond sigma and pi bond
- Replies: 4
- Views: 3134
SO2 bond sigma and pi bond
What are the sigma and Pi bonds of SO2?
- Mon Nov 18, 2019 11:03 pm
- Forum: Hybridization
- Topic: hybridization
- Replies: 11
- Views: 529
hybridization
Hello I am still very confused on hybridization. How do we derive the hybridization by looking at the lewis structure? Or do we have to look at each valence shell of each atom?
- Mon Nov 18, 2019 3:08 pm
- Forum: Dipole Moments
- Topic: Effects for boiling point
- Replies: 5
- Views: 328
Re: Effects for boiling point
I am still a little confused on boiling point and how you would tell the higher one when given two polar molecules
- Sun Nov 17, 2019 12:56 pm
- Forum: Bond Lengths & Energies
- Topic: Boiling and Melting points
- Replies: 8
- Views: 409
Re: Boiling and Melting points
I think we should just know between two molecules with different interactions, we should be able to dictate which molecule will have the higher boiling and melting point. Typically, it will be the molecule with the stronger interactions that will have higher boiling and melting points. I understand...
- Sun Nov 17, 2019 12:07 pm
- Forum: Bond Lengths & Energies
- Topic: Strongest Bonds
- Replies: 11
- Views: 891
Re: Strongest Bonds
TYun_1C wrote:Yes, out of the intermolecular forces for molecules, hydrogen bonding is the strongest.
Why are hydrogen bonds the strongest?
- Sun Nov 17, 2019 12:05 pm
- Forum: Bond Lengths & Energies
- Topic: Boiling and Melting points
- Replies: 8
- Views: 409
Re: Boiling and Melting points
Sam McNeill 3A wrote:The strongest interactions have the highest boiling point, which is the ion ion interaction.
Why is the ion-ion interaction the strongest interaction?
- Sun Nov 17, 2019 12:03 pm
- Forum: Bond Lengths & Energies
- Topic: Test 2 Topics
- Replies: 40
- Views: 2097
Re: Test 2 Topics
It should most likely include concepts pertaining to molecular shape and structure as well as those slides regarding dipole-dipole interactions, hydrogen bonds, covalent bonds, and ionic bonds that were covered by Dr. Lavelle on the last slide on the Friday before the midterm exam. I missed lecture...
- Sun Nov 17, 2019 12:01 pm
- Forum: Dipole Moments
- Topic: ion-dipole moments
- Replies: 3
- Views: 149
ion-dipole moments
Are ion-dipole moments stronger than dipole dipole moments?
- Sun Nov 17, 2019 12:00 pm
- Forum: Bond Lengths & Energies
- Topic: Quiz for Next week dashes/wedges
- Replies: 11
- Views: 610
Re: Quiz for Next week dashes/wedges
Yes, I agree with everyone above, we do not really have to worry about dashes and wedges on the test
- Sun Nov 17, 2019 11:58 am
- Forum: Dipole Moments
- Topic: Dipole-Dipole
- Replies: 2
- Views: 218
Dipole-Dipole
Why are dipole-dipole moments weaker as the molecules move farther apart?
- Sat Nov 16, 2019 7:14 pm
- Forum: Bronsted Acids & Bases
- Topic: Test2
- Replies: 7
- Views: 394
Test2
What type of questions on test 2 will we see on this subject?
- Tue Nov 12, 2019 5:21 pm
- Forum: Bond Lengths & Energies
- Topic: Bond lengths in molecules
- Replies: 7
- Views: 488
Bond lengths in molecules
I am having a hard time understanding bond lengths and what constitutes a bond having a longer or shorter length than one another. Thanks!
- Tue Nov 12, 2019 11:48 am
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: 2D.9
- Replies: 6
- Views: 850
2D.9
I am still confused with polarizing power, can someone help me put these in increasing power Rb+, Be2+, Sr2+
- Wed Nov 06, 2019 10:46 am
- Forum: Administrative Questions and Class Announcements
- Topic: DINO NUGGETS Review Session! Download Problems HERE [ENDORSED]
- Replies: 52
- Views: 6631
Re: DINO NUGGETS Review Session! Download Problems HERE [ENDORSED]
for mini dino nuggets 3a and 3b can someone please explain the difference between polarizing power and most polarizable?
- Tue Nov 05, 2019 8:48 am
- Forum: Bond Lengths & Energies
- Topic: 2D.9
- Replies: 1
- Views: 88
2D.9
For this question can someone explain to me what polarizing power is? Thank you
- Tue Nov 05, 2019 8:31 am
- Forum: Lewis Structures
- Topic: 2c.17
- Replies: 1
- Views: 117
2c.17
"Select from each of the following pairs of Lewis structures the one that is likely to make the dominant contribution to a reso-nance hybrid. Explain your selection. "
How do I figure this one out?
How do I figure this one out?
- Tue Nov 05, 2019 8:24 am
- Forum: Lewis Structures
- Topic: 2C.15
- Replies: 1
- Views: 93
2C.15
For this question, I get how to do formal charge, but how do you determine which one is lower energy structure? Is it just the one with the lowest charges that are closest to 0?
- Tue Nov 05, 2019 8:11 am
- Forum: Lewis Structures
- Topic: 2C.9
- Replies: 1
- Views: 107
2C.9
"Draw the Lewis structure for each of the following mole- cules or ions and give the number of electrons about the central atom: (a) SF 6 ; (b) XeF 2 ; (c) AsF 6 2 ; (d) TeCl 4" So for a) SF6, S would have 6 bonds around it connecting it to F, so would that be 12 electrons around the centr...
- Tue Nov 05, 2019 8:00 am
- Forum: Lewis Structures
- Topic: lewis structure homework help
- Replies: 2
- Views: 222
lewis structure homework help
"Draw the Lewis structure, including typical contributions to the resonance structure (where appropriate, allow for the possibil-ity of octet expansion, including double bonds in different posi-tions), for (a) periodate ion; (b) hydrogen phosphate ion; (c) chloric acid; (d) arsenate ion" C...
- Fri Nov 01, 2019 9:30 am
- Forum: Student Social/Study Group
- Topic: Grades
- Replies: 18
- Views: 1131
Re: Grades
Yes, how curved will final grades be? Does anyone have examples of how a past friend who had their grade curved?
- Fri Nov 01, 2019 9:26 am
- Forum: Student Social/Study Group
- Topic: Midterm
- Replies: 7
- Views: 470
Re: Midterm
Thank you Lauren for asking this question, I was also wondering the same thing! I hope the 8 questions aren't each multiple parts
- Fri Nov 01, 2019 9:25 am
- Forum: Student Social/Study Group
- Topic: Midterm question
- Replies: 3
- Views: 141
Midterm question
How much of the midterm will be composed of fundamental problems?
- Tue Oct 29, 2019 8:44 pm
- Forum: Lewis Structures
- Topic: Lewis Structure structure
- Replies: 4
- Views: 152
Lewis Structure structure
Why are some lewis structures bent at an angle? For example ONF?
- Tue Oct 29, 2019 8:42 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Midterm
- Replies: 16
- Views: 679
Midterm
Hello, I am confused about what is going to be on the midterm? Is review of high school chem going to be on it?
- Sat Oct 12, 2019 10:04 am
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student - Part II [ENDORSED]
- Replies: 298
- Views: 248883
Re: Advice from a Medical Student - Part II [ENDORSED]
Does anyone have any advice about taking a gap year after graduating and before applying for medical school?
- Sat Oct 12, 2019 10:00 am
- Forum: General Science Questions
- Topic: Tutoring
- Replies: 3
- Views: 424
Tutoring
Does anyone have an affordable tutor for the 14 series. I would like to keep one throughout the series. Thank you!
- Sat Oct 12, 2019 9:58 am
- Forum: Significant Figures
- Topic: Balancing Equations
- Replies: 4
- Views: 388
Balancing Equations
Does anyone have any tips for balancing equations? On test 1 I struggled with time and trying to figure out the correct number for each side. Thank you
- Sat Oct 12, 2019 9:54 am
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Test 1 [ENDORSED]
- Replies: 107
- Views: 18477
Re: Test 1 [ENDORSED]
Debora Fernandez Clemente_ 4H wrote:Does anyone know when we will be getting the first test back?
I am assuming next week we will get our tests back!
- Sat Oct 12, 2019 9:53 am
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Test 1 [ENDORSED]
- Replies: 107
- Views: 18477
Re: Test 1 [ENDORSED]
Can someone explain what Angstroms are? I was confused on the test on this question.
- Wed Oct 02, 2019 8:20 am
- Forum: Limiting Reactant Calculations
- Topic: Module example question [ENDORSED]
- Replies: 2
- Views: 155
Module example question [ENDORSED]
18. For the following reaction if 1.00 x 102 g H2O reacts with 1.00 x 102 g CaC2 identify the limiting reactant.
CaC2(s) + H2O(l) ---> Ca(OH)2(aq) + C2H2(g)
I understand that you need to balance the equation first, then find the molar mass. But then what do you do after that?
CaC2(s) + H2O(l) ---> Ca(OH)2(aq) + C2H2(g)
I understand that you need to balance the equation first, then find the molar mass. But then what do you do after that?