Search found 37 matches

by jlinwashington1D
Mon Mar 11, 2019 5:38 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Ideal Gas C
Replies: 5
Views: 74

Re: Ideal Gas C

CHEM 14B Lover wrote:For ideal gases, why is Cp 5/2R and Cv 3/2R


What does R refer to?
by jlinwashington1D
Mon Mar 11, 2019 5:37 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Cp vs Cv
Replies: 7
Views: 113

Re: Cp vs Cv

Constant volume, and constant pressure... The problem should contain enough information to determine which one you should use.
by jlinwashington1D
Mon Mar 11, 2019 5:33 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Delta U
Replies: 5
Views: 44

Delta U

Just for clarification... the reaction is isothermal if delta U equals 0?
by jlinwashington1D
Mon Mar 11, 2019 5:26 pm
Forum: Ideal Gases
Topic: Cell Diagram/Ecell
Replies: 8
Views: 57

Cell Diagram/Ecell

how do we determine which is the anode and which is the cathode?
by jlinwashington1D
Mon Mar 11, 2019 5:15 pm
Forum: Balancing Redox Reactions
Topic: oxidizing agent and reducing agent
Replies: 15
Views: 123

Re: oxidizing agent and reducing agent

If the oxidation number is greater in the product, then it lost electrons (oxidized). If the oxidation number is less, then it gained electrons (reduced).
by jlinwashington1D
Mon Mar 11, 2019 5:09 pm
Forum: Balancing Redox Reactions
Topic: Oxidation number?
Replies: 12
Views: 86

Re: Oxidation number?

He is referring to the groups and their charges on the periodic table.
by jlinwashington1D
Mon Mar 11, 2019 5:07 pm
Forum: Balancing Redox Reactions
Topic: Short hand notation
Replies: 8
Views: 80

Re: Short hand notation

A salt bridge is used to connect the oxidation and reduction half-cells of a galvanic cell.
by jlinwashington1D
Mon Mar 11, 2019 4:59 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Ka2
Replies: 1
Views: 17

Ka2

What is Ka2, in simple terms?
by jlinwashington1D
Mon Mar 11, 2019 10:48 am
Forum: Ideal Gases
Topic: Water
Replies: 13
Views: 158

Re: Water

When will water become a gas or solid?
by jlinwashington1D
Mon Mar 11, 2019 10:43 am
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: ignoring x
Replies: 16
Views: 153

Re: ignoring x

X can be ignored when k is less than 1x10^-3
by jlinwashington1D
Mon Mar 11, 2019 10:40 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Injecting noble gasses
Replies: 7
Views: 76

Re: Injecting noble gasses

Nope, there won't be a change in the equilibrium constant.
by jlinwashington1D
Mon Mar 11, 2019 10:38 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Le Chatelier's Principle
Replies: 3
Views: 34

Le Chatelier's Principle

What does this principle refer to? Is it true that it predicts the change in equilibria?
by jlinwashington1D
Mon Mar 11, 2019 10:34 am
Forum: Ideal Gases
Topic: 5% rule
Replies: 12
Views: 196

Re: 5% rule

What is the 5% rule, and what does it refer to?
by jlinwashington1D
Mon Mar 11, 2019 10:32 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: increasing pressure, what happens to concentration?
Replies: 10
Views: 118

Re: increasing pressure, what happens to concentration?

when pressure increases, the reaction is attracted to the side with fewer moles.
by jlinwashington1D
Mon Mar 11, 2019 10:29 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Equilibrium Constanst
Replies: 3
Views: 26

Equilibrium Constanst

Is it true that k is unitless when dividing products by reactants ?
by jlinwashington1D
Mon Mar 11, 2019 10:27 am
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Final Exam
Replies: 23
Views: 160

Re: Final Exam

Is there anyone doing study groups for the final ?
by jlinwashington1D
Mon Mar 11, 2019 10:22 am
Forum: Ideal Gases
Topic: Ideal gases
Replies: 5
Views: 39

Ideal gases

Are we just to assume that a gas is an ideal gas ?
by jlinwashington1D
Mon Mar 11, 2019 10:21 am
Forum: Ideal Gases
Topic: ICE
Replies: 8
Views: 56

ICE

f the value of K is less than 10^-3, what can we assume about the value ?
by jlinwashington1D
Sun Mar 03, 2019 7:15 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Cell diagram
Replies: 4
Views: 55

Cell diagram

What are cell diagrams used for and what are its components?
by jlinwashington1D
Fri Feb 08, 2019 11:09 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Delta H
Replies: 7
Views: 67

Delta H

What does this refer to, and what’s the equation for it?
by jlinwashington1D
Fri Feb 08, 2019 11:06 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Bond
Replies: 2
Views: 37

Bond

What should I know about bond angles ?
by jlinwashington1D
Fri Feb 08, 2019 8:32 am
Forum: Administrative Questions and Class Announcements
Topic: Tutoring? [ENDORSED]
Replies: 39
Views: 20169

Re: Tutoring? [ENDORSED]

Are there any one on one sessions ?
by jlinwashington1D
Fri Feb 08, 2019 8:29 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Systems
Replies: 2
Views: 26

Systems

What is the difference between open and closed systems ?
by jlinwashington1D
Fri Feb 01, 2019 12:01 pm
Forum: Student Social/Study Group
Topic: Lecture Notes (1/30)
Replies: 4
Views: 99

Re: Lecture Notes (1/30)

Thanks!!
by jlinwashington1D
Fri Feb 01, 2019 11:59 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: CP/V
Replies: 2
Views: 39

CP/V

What are CP and CP formulas?
by jlinwashington1D
Fri Feb 01, 2019 11:57 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Enthalpies
Replies: 5
Views: 49

Enthalpies

What's does enthalpies refer to?
by jlinwashington1D
Thu Jan 24, 2019 6:39 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: PV= RnT
Replies: 2
Views: 44

PV= RnT

What does the formula PV=RnT refer to?
by jlinwashington1D
Thu Jan 24, 2019 6:36 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Acid and bases
Replies: 1
Views: 32

Acid and bases

Does Acid and bases have anything to do with equilibrium?
by jlinwashington1D
Thu Jan 24, 2019 6:33 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: pH
Replies: 9
Views: 100

pH

What is pH and how do I find it?
by jlinwashington1D
Wed Jan 16, 2019 9:30 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Conjugates
Replies: 5
Views: 89

Re: Conjugates

Does anyone know what the conjugate seesaw refers to ?
by jlinwashington1D
Wed Jan 16, 2019 9:28 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Acid & Bases
Replies: 1
Views: 23

Acid & Bases

What are acids & bases? What are conjugate acid & bases ?
by jlinwashington1D
Wed Jan 16, 2019 9:25 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: States
Replies: 1
Views: 33

States

difference between liquids, solids, gases, and water in concentration ?
by jlinwashington1D
Wed Jan 16, 2019 9:23 pm
Forum: Administrative Questions and Class Announcements
Topic: Number of questions on test one [ENDORSED]
Replies: 39
Views: 17227

Re: Number of questions on test one [ENDORSED]

905092269 wrote:I was wondering how many questions test one has? I was also wondering how many points will be taken off for simple mistakes (sig figs, units, etc.)?

When will the test take place? Does it cover both equilibrium and acids and bases?
by jlinwashington1D
Wed Jan 16, 2019 9:20 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: ICE
Replies: 5
Views: 65

ICE

What is X on an ice table ?
by jlinwashington1D
Wed Jan 16, 2019 9:19 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: pH
Replies: 5
Views: 57

pH

Does anyone know how to solve pH?
by jlinwashington1D
Wed Jan 16, 2019 9:10 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Concentration
Replies: 4
Views: 63

Concentration

What's the difference between Q & K

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