Search found 12 matches

by Carla Cruz Medina 1L
Fri Mar 17, 2017 9:10 am
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Practice Problems
Replies: 23
Views: 2339

Re: Practice Problems

have the solutions for problem set 3 been posted yet?
by Carla Cruz Medina 1L
Thu Mar 16, 2017 9:18 pm
Forum: Phase Changes & Related Calculations
Topic: Thermodynamics question
Replies: 1
Views: 254

Thermodynamics question

Suppose you want to use methane gas ( Delta H=-890kJ/mol) to boil 50.0L of water at 25 degrees C. How many grams of methane gas would you need to be combusted to generate the required heat?
by Carla Cruz Medina 1L
Mon Mar 06, 2017 8:20 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 3 Winter 2017
Replies: 183
Views: 15893

Re: Quiz 3 Winter 2017

Will we be tested in systematic names for quiz 3?
by Carla Cruz Medina 1L
Sun Feb 26, 2017 10:13 pm
Forum: First Order Reactions
Topic: Equations for order reactions
Replies: 1
Views: 239

Equations for order reactions

For the final should we know how to derive each equation for the zero, first, and second order reactions?
by Carla Cruz Medina 1L
Sun Feb 19, 2017 10:20 pm
Forum: General Rate Laws
Topic: Knowing Rate Laws
Replies: 1
Views: 268

Knowing Rate Laws

Will we be told what rate law is implicated for the quiz or do we need to figure that out ourselves by analyzing the units used in the problem?
by Carla Cruz Medina 1L
Sun Feb 12, 2017 7:08 pm
Forum: Balancing Redox Reactions
Topic: K and K(sub)a
Replies: 2
Views: 371

K and K(sub)a

What's the difference between K and K(sub)a in the context of concentration of solutions?
by Carla Cruz Medina 1L
Sun Feb 05, 2017 7:55 pm
Forum: Balancing Redox Reactions
Topic: Redox Reactions
Replies: 1
Views: 392

Redox Reactions

Write the half-reactions and the balanced equation for the cell reaction for the following galvanic cell.
Ni(s)| Ni[2+] (aq) || Ag+ (aq)| Ag(s)
by Carla Cruz Medina 1L
Sun Jan 29, 2017 8:05 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Gibbs Free Energy and Entropy
Replies: 2
Views: 264

Gibbs Free Energy and Entropy

Are compounds more stable when their Gibbs Free energy is a negative number? Why? How does spontaneity bring about stability?
by Carla Cruz Medina 1L
Sun Jan 22, 2017 7:56 pm
Forum: Phase Changes & Related Calculations
Topic: Heat Released/Absorbed [ENDORSED]
Replies: 2
Views: 400

Heat Released/Absorbed [ENDORSED]

Is heat absorbed always negative and heat released always positive? Why is that so?
by Carla Cruz Medina 1L
Mon Jan 16, 2017 12:07 am
Forum: Phase Changes & Related Calculations
Topic: Enthalpy
Replies: 8
Views: 797

Enthalpy

Oxygen difluoride is a colorless, very poisonous gas that reacts rapidly with water vapor to produce O2 and HF and heat: OF2+H2O->O2+HF2 (DELTA)H=-318kJ What is the change in internal energy for the reaction of 1 mol OF2? I know I need to use P(DELTA)V=(DELTA)nRT but the temperature is not given. Wh...
by Carla Cruz Medina 1L
Wed Jul 20, 2016 8:25 pm
Forum: Naming
Topic: Naming complex compounds
Replies: 5
Views: 1441

Re: Naming complex compounds

You should just memorize it. It's 2
by Carla Cruz Medina 1L
Fri Jun 24, 2016 2:38 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: How many electrons canthe quantum numbers in an atom? [ENDORSED]
Replies: 2
Views: 483

How many electrons canthe quantum numbers in an atom? [ENDORSED]

The question is: How many electrons can have the following quantum numbers in an atom?
(a)n=2, l=1
(b)n=4,l=2, ml=-2
(c)n=2
(d) n=3,l=2, ml=+1

Please give me a basic run through of how to solve this problem



by: carlacruzm in 1C Summer 2016

Go to advanced search