Search found 21 matches
Search found 21 matches • Page 1 of 1
- Sun May 27, 2018 9:10 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal Charge vs Oxidation Numbers
- Replies: 2
- Views: 149
Formal charge helps to describe the number of bonds and electrons that are associated with each atom. Oxidation numbers refer to the total number of gained or lost electrons.
- Sun May 20, 2018 10:22 pm
- Forum: Resonance Structures
- Topic: Resonance Structures
- Replies: 9
- Views: 293
I think that the resonance structures can have different bond placements, making the formal charge different in some cases. However, if the same elements in each are bonded, then the charge will be the same.
- Sun May 06, 2018 10:27 pm
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Percentages When Solving for Molecular Formula
- Replies: 2
- Views: 161
Also, assuming that the percentages equal 100 grams will help get the empirical formula!
- Sun Apr 29, 2018 11:23 pm
- Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
- Topic: Atomic Spectra Post Module #29 [ENDORSED]
- Replies: 3
- Views: 167
To find the number of photons. you would use a chart like Figure 1.1 in the textbook to find the energy of one photon, and then divide the total energy of the source by the energy of one photon to find the number of photons.
- Sun Apr 15, 2018 10:39 pm
- Forum: Balancing Chemical Reactions
- Topic: Whole numbers
- Replies: 7
- Views: 256
Because you can not have half of an atom, you have to make them whole numbers. Also, you have to make sure that you only change the coefficient only because changing subscripts would change the composition of the molecule.