What was the charge when NaCl was arrested?
A salt
Search found 24 matches
- Sun Mar 19, 2017 9:01 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
- Mon Mar 13, 2017 1:12 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
Re: Post All Chemistry Jokes Here
Why did the acid go to the gym?
To become a buffer solution!
To become a buffer solution!
- Sat Mar 11, 2017 2:17 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
Re: Post All Chemistry Jokes Here
Why does a hamburger have lower energy than a steak?
It's in the ground state!
It's in the ground state!
- Mon Mar 06, 2017 4:07 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
Re: Post All Chemistry Jokes Here
You must be made of uranium and iodine because all I see is U and I
- Wed Mar 01, 2017 2:12 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
Re: Post All Chemistry Jokes Here
What do you call iron blowing in the wind?
Febreeze
Febreeze
- Thu Feb 23, 2017 5:39 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
Re: Post All Chemistry Jokes Here
What happened to the man who was stopped for having sodium chloride and a nine-volt in his car?
He was booked for a salt and battery.
He was booked for a salt and battery.
- Tue Feb 21, 2017 1:57 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
Re: Post All Chemistry Jokes Here
If H2O is water, what is H2O4?
Drinking, bathing, washing, swimming, etc.
Drinking, bathing, washing, swimming, etc.
- Thu Feb 09, 2017 7:19 am
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Potential Difference
- Replies: 1
- Views: 470
Re: Potential Difference
Potential difference, also known as voltage, is the difference in electric potential between the two electrodes and is equal to the work done per unit of charge against an electric field to move a charge between the electrodes. Negatively charged particles are pulled towards higher potential differe...
- Wed Feb 01, 2017 9:58 am
- Forum: General Science Questions
- Topic: Sig Figs
- Replies: 3
- Views: 868
Re: Sig Figs
I would because sometimes numbers in tables are approximations or are not the most precise so you need to account for that.
- Wed Jan 25, 2017 6:46 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Degeneracy of Isolated System
- Replies: 1
- Views: 462
Re: Degeneracy of Isolated System
According to the 2nd law of thermodynamics, entropy (and thus correlation) is never decreasing in an isolated system. If it has reached equilibrium than it is not increasing either, so it must be at its max.
- Wed Jan 25, 2017 6:38 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Why is the oxygen (1/2)02instead of 02?
- Replies: 2
- Views: 5069
Re: Why is the oxygen (1/2)02instead of 02?
You said 1/2 O2 because your primary goal is forming only ONE mole of the product (H2O or CO2). If you use 1 O2, more than one mole of product would be formed.
- Thu Jan 19, 2017 6:19 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Isolated Systems [ENDORSED]
- Replies: 2
- Views: 750
Re: Isolated Systems [ENDORSED]
soup that is poured into a completely insulated container with a lid so no heat or material can be exchanged (thermoflask if it worked perfectly; realistically thermoflasks are not completely insulated so not completely isolated), insulated gas tank, the universe(?)
- Sun Jan 15, 2017 5:44 pm
- Forum: Phase Changes & Related Calculations
- Topic: Constant P vs Constant V Calorimetry [ENDORSED]
- Replies: 4
- Views: 1120
Re: Constant P vs Constant V Calorimetry [ENDORSED]
I'm guessing Constant P calorimetry is when you keep pressure constant and Constant V calorimetry is when you keep volume constant. You would thus use different types of calorimeters because different calorimeters hold constant different things and would fulfill different conditions.
- Sun Dec 04, 2016 1:20 pm
- Forum: Properties of Light
- Topic: Fall 2016 Midterm #2B
- Replies: 1
- Views: 607
Fall 2016 Midterm #2B
The energy required to break a C-C bond in a molecule is 348 kj/mol. Will visible light be able to break this bond?
For this question, do we have to convert 348 kj/mol to kj/molecule because the question is referring to a single molecule?
For this question, do we have to convert 348 kj/mol to kj/molecule because the question is referring to a single molecule?
- Mon Nov 28, 2016 11:25 am
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Sig Figs for Logarithms and Exponents
- Replies: 2
- Views: 986
Re: Sig Figs for Logarithms and Exponents
I learned it as the number of sigfigs of the H30+ concentration is the number of digits after the decimal of the pH. So -log[0.0652]=1.186.
- Fri Nov 18, 2016 9:06 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: ICE box
- Replies: 2
- Views: 1021
Re: ICE box
Correct me if I'm wrong, but I would think that you would omit the solids and liquids from the ICE box because they are not included in the equilibrium equation.
- Mon Nov 14, 2016 2:17 pm
- Forum: Ideal Gases
- Topic: Ideal Gas Law and Equilibrium Constant
- Replies: 7
- Views: 1613
Re: Chemical Equilibrium Part 3 Module
Wait how do you solve that second problem without knowing the equilibrium constant?
- Sun Nov 06, 2016 8:11 pm
- Forum: Hybridization
- Topic: Hybrid Orbitals
- Replies: 4
- Views: 1315
Re: Hybrid Orbitals
You can find hybridization by counting the number of atoms bonded to the atom you're examining and the number of lone pairs the atom has (regions of electron density). You don't subtract 1 from that sum because you are not using "sp" as a unit (sp^3 is not 3 sp's). "S" is a separ...
- Thu Oct 27, 2016 11:35 am
- Forum: Hybridization
- Topic: sigma and pi bonds
- Replies: 3
- Views: 747
Re: sigma and pi bonds
No, sigma bonds are not limited to just those pairs of orbitals. A sigma bond is just defined as being formed by head-on overlapping between orbitals, meaning other orbitals (ex. dz2 - dz2) can also have sigma bonds.
- Mon Oct 24, 2016 12:54 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3955508
Re: Post All Chemistry Jokes Here
What did the student who failed chemistry say?
If I had electrons I would have an octet because I don't do chemistry.
If I had electrons I would have an octet because I don't do chemistry.
- Sun Oct 16, 2016 2:47 pm
- Forum: Trends in The Periodic Table
- Topic: Homework problem Ch2 67
- Replies: 4
- Views: 712
Re: Homework problem Ch2 67
Yes, a half-filled p sub-shell (that carbon would have) is more stable than having four electrons in the p sub-shell (that nitrogen would have). The fourth electron in nitrogen's p sub-shell would be paired with another electron in the same orbital, and the slight repulsion between the two electrons...
- Tue Oct 04, 2016 4:06 pm
- Forum: Properties of Light
- Topic: Wave Particle Duality [ENDORSED]
- Replies: 1
- Views: 660
Re: Wave Particle Duality [ENDORSED]
I think it should because c=\lambda \nu is based on the the description of light as a wave and E=h\nu is based on the description of light as particles (since it describes the energy of a photon). The ability to combine the two into E=\frac{hc}{\lambda } should reflect the wave-particle duality of l...
- Sun Oct 02, 2016 6:09 pm
- Forum: Properties of Light
- Topic: Question about n1 and n2
- Replies: 4
- Views: 4368
Re: Question about n1 and n2
Yes n1 is the initial energy level and n2 is the final energy level. Both n1 and n2 are integers (1, 2, 3, 4...) and n2>n1.
- Sun Sep 25, 2016 10:46 am
- Forum: Limiting Reactant Calculations
- Topic: Limiting Reactants & Limiting Reagents [ENDORSED]
- Replies: 7
- Views: 4817
Re: Limiting Reactants & Limiting Reagents [ENDORSED]
Pretty sure it's typically a matter of sig figs given in the question.