## Search found 7 matches

Sat Mar 12, 2016 3:59 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Cis and Trans
Replies: 1
Views: 301

### Re: Cis and Trans

Cis refers to the orientation of a molecule in which the highest priority groups on either end of the double bond are on the same side. Trans is when the highest priority groups on either end are on opposite sides of the double bond. In the case of the cyclopentene in Q7B, the way to determine wheth...
Sat Mar 12, 2016 3:47 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: EZ naming vs Cis/Trans naming
Replies: 1
Views: 437

### Re: EZ naming vs Cis/Trans naming

I don't believe there's any difference between when you would use ZE or cis/trans. The solutions to the past finals all indicate that either answer is fine when naming molecules.
Sun Jan 24, 2016 1:39 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Calculating the heat released (8.31)
Replies: 1
Views: 385

### Calculating the heat released (8.31)

Calculate the heat released by 5.025 g of Kr (g) at 0.400 atm as it cools from 97.6C to 25.0C at (a) constant pressure and (b) constant volume. Assume that krypton behaves as an ideal gas.

Would you use the equation q=nC(delta)T? And if so, what is C?
Sun Nov 15, 2015 9:42 pm
Forum: Naming
Topic: Iron vs ferrate & oh2
Replies: 3
Views: 600

### Re: Iron vs ferrate & oh2

For iron, when it has a positive charge, it would be written as Iron (II) as in [Fe(CN)6]^4- or hexacyanoiron(II).

However when it has a negative charge, it would be written as Ferrate (III) as in sodium bisoxalato(diaqua)ferrate(III).
Sun Oct 18, 2015 4:26 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: electron configuration for Bi^3+
Replies: 1
Views: 6763

### electron configuration for Bi^3+

I tried writing out the electron configuration for Bi^3+ and I got
1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^2 4p^6 4d^10 4f^14 5s^2 5s^2 5p^6 5d^10 5f^0 6s^2

but I'm not sure how to write the electron configuration with [Xe]. Is it

[Xe] 4f^14 5s^2 5p^6 5d^10 5f^0 6s^2

or something else?
Sun Oct 18, 2015 4:06 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Uncertainty
Replies: 1
Views: 332

### Re: Uncertainty

We know the electron's position. It should be confined to the radius of that particular atom.
Wed Sep 30, 2015 10:11 pm
Forum: Properties of Light
Topic: 1.3 manipulating light equations
Replies: 3
Views: 613

### 1.3 manipulating light equations

Which of the following happens when the frequency of electromagnetic radiation decreases? a) The speed of the radiation decreases. b) The wavelength of the radiation decreases. c) The extent of the change in the electrical field at a given point decreases. d) The energy of the radiation increases. ...

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