How did you go from:
[HN]= 10^-3.26 to
5.495 times 10^-4
Where did you get the 5.495?
Search found 8 matches
- Wed Dec 10, 2014 6:15 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: pH and pOH
- Replies: 3
- Views: 702
- Thu Dec 04, 2014 7:53 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Calculating partial pressure using a solid
- Replies: 3
- Views: 4832
Re: Calculating partial pressure using a solid
If one of the reactants is a solid, (i.e. the other is a gas), then would the partial pressure of the solid be 1?
- Wed Dec 03, 2014 2:41 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: pH and pOH
- Replies: 3
- Views: 702
Re: pH and pOH
a. Call the niacin HN Definition of Ka Ka = [H+]*[N-] / [HN] Let the [H+] = X. Because [H+] = [N-] , then [H+]*[N-] can be written: X² Because the dissociation of HN↔ H+ + N- is very small compared to the concentration of HN, we can ignore this and call [HN] = 0.02M Substituting: Ka = X²/0.02 From p...
- Wed Dec 03, 2014 2:29 pm
- Forum: Naming
- Topic: Keypoints for Naming Compounds
- Replies: 2
- Views: 645
Re: Keypoints for Naming Compounds
You could add when you would add "ion" to the end of the name.
- Wed Dec 03, 2014 2:26 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: What is "dien"?
- Replies: 1
- Views: 4886
Re: What is "dien"?
"Dien" is a short-hand way of writing the name for the ligand diethylenetriamine (which has the same name under the new IUPAC conventions).
The formula is:
NH2CH2CH2NHCH2CH2NH2.
You can also find this on page 101 in the Course Reader.
The formula is:
NH2CH2CH2NHCH2CH2NH2.
You can also find this on page 101 in the Course Reader.
- Mon Nov 10, 2014 9:55 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3618177
Re: Chemistry Jokes
At the end of the semester, a chemistry teacher asked her students what was the most important thing that they learned in lab. A student promptly raised his hand and said, "Never lick the spoon." Q: Why does hamburger yield lower energy than steak? A: Because it's in the ground state. Heis...
- Mon Oct 27, 2014 1:30 pm
- Forum: Trends in The Periodic Table
- Topic: Why is Palladium's electron configuration different?
- Replies: 1
- Views: 33334
Re: Why is Palladium's electron configuration different?
Not a typo. We know that Pd has 46 electrons by looking at the periodic table, and we know that "s" orbitals can have a maximum of 2 electrons, "p" can have 6, "d" can have 10, and "f" can have 14. So the full electron configuration for Palladium would start w...
- Fri Oct 10, 2014 10:28 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Minimum Uncertainty (Heisenberg)
- Replies: 1
- Views: 596
Minimum Uncertainty (Heisenberg)
(From homework question 1.29)
What is the minimum uncertainty in speed of an electron in a Pb atom which has diameter equal to 350 pm?
My question:
What would you do differently if it asked for "maximum" uncertainty? Or would that not need to be calculated?
Thank you.
What is the minimum uncertainty in speed of an electron in a Pb atom which has diameter equal to 350 pm?
My question:
What would you do differently if it asked for "maximum" uncertainty? Or would that not need to be calculated?
Thank you.