Search found 15 matches

by Lovelyn Edillo 4F
Sun Mar 06, 2016 11:57 pm
Forum: *Cycloalkanes
Topic: 2 Cylcoalkanes attached to each other
Replies: 1
Views: 380

2 Cylcoalkanes attached to each other

If 2 cycloalkanes are attached to each other, can you name it as if its one big chain? For example, if you have 2 cyclopropane rings attached, can you consider it one big hexane molecule?
by Lovelyn Edillo 4F
Sun Feb 28, 2016 10:33 pm
Forum: *Alkanes
Topic: Suffixes
Replies: 2
Views: 594

Suffixes

Can someone brief me on what the suffixes ane, ene, yne, and ol mean?
by Lovelyn Edillo 4F
Thu Feb 18, 2016 8:45 pm
Forum: General Rate Laws
Topic: "a"
Replies: 2
Views: 424

"a"

I don't understand what "a" represents in the rate laws. How do I determine whether a reaction is first or second or third order?
by Lovelyn Edillo 4F
Tue Feb 09, 2016 12:32 am
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Example 14.8 in the chapter
Replies: 1
Views: 365

Example 14.8 in the chapter

Why is it that although we've reversed one of the half reactions, we keep the same sign of that reaction's E when we plug it into the standard E equation? Is that an error in the example?
by Lovelyn Edillo 4F
Thu Jan 28, 2016 3:31 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: 8.67 Inquiry
Replies: 1
Views: 292

8.67 Inquiry

For part b, the solutions manual uses the equation C + 2H₂ +(1/2)O₂ = CH 3 OH and their calculated reaction enthalpy is -222 kj mol -1 , which I understand. However, why can't I use the equation: CO +2H₂ = CH 3 OH ? I get a different reaction enthalpy altogether by using the following bond enthalpy...
by Lovelyn Edillo 4F
Thu Jan 21, 2016 11:43 pm
Forum: Phase Changes & Related Calculations
Topic: Delta H Nought vs Delta H
Replies: 3
Views: 1315

Re: Delta H Nought vs Delta H

Delta H represents any change in enthalpy. Delta H nought specifically represents the standard change in enthalpy, meaning the change in enthalpy involved an equation under standard conditions. Standard conditions meaning the reactants and products are all in their standard physical and chemical sta...
by Lovelyn Edillo 4F
Thu Jan 14, 2016 3:26 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Work
Replies: 4
Views: 771

Re: Work

The negative sign is there to signify that the system has lost energy, because it has to expend work to push against the external pressure on the system.
by Lovelyn Edillo 4F
Thu Jan 07, 2016 7:05 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Lowest Energy State of an Element
Replies: 1
Views: 360

Re: Lowest Energy State of an Element

An element is in its lowest energy state, otherwise known as its "ground state" if its configuration matches its ground-state electron configuration, which would just be the electron configuration of its placement on the periodic table, meaning that element is not an ion. Since it is not a...
by Lovelyn Edillo 4F
Sun Nov 29, 2015 10:53 pm
Forum: Limiting Reactant Calculations
Topic: Video: Fall 2013 Final Question 1
Replies: 4
Views: 699

Video: Fall 2013 Final Question 1

Students involved:
Satyam Kotecha
Lovelyn Edillo
Anthony Chen
by Lovelyn Edillo 4F
Sun Nov 15, 2015 8:19 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Polydentate Ions
Replies: 1
Views: 274

Polydentate Ions

How do I identify the number of dentates? Are they unpaired lone pairs on binding atoms?
by Lovelyn Edillo 4F
Sun Nov 08, 2015 11:53 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Naming
Replies: 2
Views: 486

Naming

Does it matter in which order you put the name when writing the molecule out?
by Lovelyn Edillo 4F
Sun Oct 25, 2015 8:43 pm
Forum: Resonance Structures
Topic: Expanded Octets
Replies: 1
Views: 532

Expanded Octets

How come only the elements in the third period and under are eligible for expanded octets? Please give more detail rather than just explaining those elements involve the d orbital because that doesn't make it any clearer for me. Sorry! But thank you!
by Lovelyn Edillo 4F
Sun Oct 11, 2015 10:58 pm
Forum: Properties of Electrons
Topic: Nodal Planes
Replies: 1
Views: 419

Nodal Planes

I know that there is 0% chance of finding an electron in a nodal plane, but does the presence of nodal planes affect the probability of finding an electron otherwise?
by Lovelyn Edillo 4F
Sun Oct 04, 2015 11:07 pm
Forum: Properties of Light
Topic: Spectral Lines
Replies: 1
Views: 395

Re: Spectral Lines

The emission spectrum demonstrates the wavelengths of light the electron emits, whereas the absorption spectrum demonstrates the wavelengths the electron absorbs. By this logic, the absorption spectrum is the inverse of the emission spectrum. Specifically, whatever lines shown in a specific electron...

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