Typical strong acid:
HCl HNO3 H2SO4 HBr HI HClO4 HClO3
Search found 26 matches
- Sun Dec 01, 2019 3:06 pm
- Forum: Acidity & Basicity Constants and The Conjugate Seesaw
- Topic: Strong and Weak Acids
- Replies: 7
- Views: 492
- Sun Dec 01, 2019 3:04 pm
- Forum: Lewis Acids & Bases
- Topic: acid v. base?
- Replies: 16
- Views: 876
Re: acid v. base?
You can distinguish them by figuring out which one accepts proton and which one donates proton.
- Sun Dec 01, 2019 3:02 pm
- Forum: Calculating the pH of Salt Solutions
- Topic: pH of acids
- Replies: 13
- Views: 3490
Re: pH of acids
The pH value is like a scale. From 0 to 14 it goes from more acid to more basic.
- Sun Dec 01, 2019 3:01 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Value of pH
- Replies: 8
- Views: 409
Re: Value of pH
Yes, pH value can go below 0 and go above 14, but I think the negative pH is not our class focus.
- Sun Dec 01, 2019 3:00 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: strong or weak base?
- Replies: 13
- Views: 834
Re: strong or weak base?
They can be distinguished by the level that they ionize in water. Strong base tends to be ionized more in water.
- Sun Dec 01, 2019 2:58 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Relative Acidity
- Replies: 4
- Views: 330
Re: Relative Acidity
Higher electronegativity means stronger attraction, which leads to more polarized and more stable.
- Sun Nov 10, 2019 11:06 pm
- Forum: Octet Exceptions
- Topic: Octet exception
- Replies: 14
- Views: 1205
Octet exception
What elements are exempted from Octet rule (eg. P) and why?
- Sun Nov 10, 2019 11:05 pm
- Forum: Dipole Moments
- Topic: Dipole moment units
- Replies: 4
- Views: 229
Re: Dipole moment units
Dipole moment calculates the polarity of the chemical bond (how different the polarity between the two atoms are)
- Sun Nov 10, 2019 11:00 pm
- Forum: Lewis Structures
- Topic: When to draw Resonance Structures
- Replies: 14
- Views: 923
Re: When to draw Resonance Structures
I will recommend drawing all of them just in case though most stable ones should be fine.
- Sun Nov 10, 2019 10:58 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: How to know where a double bond should go?
- Replies: 10
- Views: 1087
Re: How to know where a double bond should go?
Most time the double bond can go with any atom (mainly the central atom) in the structure as long as it meets the octant rule.
- Sun Nov 10, 2019 10:54 pm
- Forum: Bond Lengths & Energies
- Topic: Strongest Bond
- Replies: 15
- Views: 7153
Re: Strongest Bond
covalent>ionic>hydrogen>dipole-dipole (strongest to weakest)
- Sun Nov 03, 2019 8:09 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: H-atom
- Replies: 1
- Views: 162
H-atom
Why does the energy level only work on H-atom?
- Sun Nov 03, 2019 8:03 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: High polarizing Power?
- Replies: 2
- Views: 211
High polarizing Power?
What does it mean when ions have high polarizing power? Does it have anything to do with being covalent/ionic?
- Sun Nov 03, 2019 8:00 pm
- Forum: Lewis Structures
- Topic: Which element at center of the structure
- Replies: 6
- Views: 492
Which element at center of the structure
How do I know which element is the center besides Carbon?
- Sun Nov 03, 2019 7:59 pm
- Forum: Lewis Structures
- Topic: Resonance Structure
- Replies: 4
- Views: 251
Resonance Structure
When we are asked to draw lewis structure, do I need to draw the resonance structure as well?
- Sun Nov 03, 2019 7:58 pm
- Forum: Electronegativity
- Topic: Electronegativity and ionic/covalent bond
- Replies: 2
- Views: 232
Electronegativity and ionic/covalent bond
How does electronegativity relate to ionic/covalent bond?
- Sun Oct 13, 2019 4:09 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Advice from a Medical Student [ENDORSED]
- Replies: 297
- Views: 381951
Re: Advice from a Medical Student [ENDORSED]
Thank you very much! I really got a better idea of how to be a pre-med student!
- Sun Oct 13, 2019 4:08 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Test 2
- Replies: 1
- Views: 147
Test 2
Does anyone know what topics will be covered in Test 2?
- Sun Oct 13, 2019 4:07 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Week 2 Homework Problems [ENDORSED]
- Replies: 67
- Views: 7175
Re: Week 2 Homework Problems [ENDORSED]
We can do both of them or just choose one unit to work on.
- Sun Oct 13, 2019 4:06 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Week 3 HW Problem
- Replies: 1
- Views: 138
Week 3 HW Problem
Are we only allowed to do questions from the quantum section this week?
- Sun Oct 13, 2019 4:05 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2974908
Re: Post All Chemistry Jokes Here
Q: Why cylinders smarter than you?
A:Because they are graduated cylinder
A:Because they are graduated cylinder
- Sat Oct 05, 2019 11:21 pm
- Forum: General Science Questions
- Topic: Rusty on High School Chem [ENDORSED]
- Replies: 347
- Views: 416011
Re: Rusty on High School Chem [ENDORSED]
Well, the first week I feel like we just went over the general chem in high school (not ap chem), but I DO think you need to know some basic concepts in chemistry in order not to make your life so hard in 14A. The best thing to do would be taking a diagnostic test and see how you feel about learning...
- Sat Oct 05, 2019 11:17 pm
- Forum: Empirical & Molecular Formulas
- Topic: Writing Empirical Formulas
- Replies: 8
- Views: 851
Re: Writing Empirical Formulas
The order of the elements is not that important in this kind of question. As long as you get the ratio of the mass of every element correct, I think you will be fine.
- Sat Oct 05, 2019 11:15 pm
- Forum: Significant Figures
- Topic: All students read this sig fig post [ENDORSED]
- Replies: 170
- Views: 33499
Re: All students read this sig fig post [ENDORSED]
Should I take sig figs while I am calculating one problem step by step? Should I use sig figs every step or should I just consider the sig figs on the very last calculation?
- Sat Oct 05, 2019 11:14 pm
- Forum: Significant Figures
- Topic: All students read this sig fig post [ENDORSED]
- Replies: 170
- Views: 33499
Re: All students read this sig fig post [ENDORSED]
I can easily get confused when I am trying to figure out the sig figs in the calculation of mole/mass using molar mass. Should I just consider the number of sig figs depending on the numbers in the molar mass?
- Sat Oct 05, 2019 11:12 pm
- Forum: Significant Figures
- Topic: Sig Figs of Mass Percentage Composition?
- Replies: 3
- Views: 213
Re: Sig Figs of Mass Percentage Composition?
I think for emperial and molecular formula it doesn't really matter. I would take as many as possible( like 5-6 sig figs) cause in order to get a more accurate ratio, the more accurate your numbers are, the more accurate your ratio between moles will be.