Search found 30 matches

by kanikubari
Sun Mar 17, 2019 10:35 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Le Chatelier's Principle
Replies: 2
Views: 102

Re: Le Chatelier's Principle

Salena Chowdri 1I wrote:When the concentration of reactants increases, forward reaction is favored (vice versa)
When the temperature increases for an endothermic reaction, forward reaction is favored (vice versa)
When gas is compressed, the side that has less gas molecules will be favored

Thank you so much!
by kanikubari
Sun Mar 17, 2019 1:52 am
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Le Chatelier's Principle
Replies: 2
Views: 102

Le Chatelier's Principle

What are the basics of Chatelier's principle?
by kanikubari
Sun Mar 17, 2019 1:51 am
Forum: General Science Questions
Topic: Midterm #7
Replies: 1
Views: 114

Midterm #7

How do you write out the reaction for part D and why is it that way?
by kanikubari
Sat Mar 16, 2019 8:11 pm
Forum: General Science Questions
Topic: Midterm
Replies: 1
Views: 101

Midterm

On question 7 part A, how do you know if there is a shift in equilibrium?
by kanikubari
Sat Mar 16, 2019 8:10 pm
Forum: General Science Questions
Topic: Midterm
Replies: 1
Views: 103

Midterm

How do you solve question 7 part D?
by kanikubari
Tue Mar 12, 2019 8:18 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: 15.53
Replies: 1
Views: 94

15.53

Why is mechanism C not correct. How does step 1 having a reverse that is both fast and at equilibrium affect this?
by kanikubari
Tue Mar 12, 2019 7:56 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: 15.39
Replies: 2
Views: 91

15.39

Where did the 0.19mol come from for molB?
by kanikubari
Tue Mar 12, 2019 7:36 pm
Forum: Second Order Reactions
Topic: 15.37
Replies: 1
Views: 41

15.37

How would you go about finding the equation to use for this problem?
by kanikubari
Tue Mar 05, 2019 12:36 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: 15.7 or finding rates of decomposition
Replies: 2
Views: 46

15.7 or finding rates of decomposition

How do you find the rate of decomposition?
by kanikubari
Tue Feb 26, 2019 7:52 am
Forum: Balancing Redox Reactions
Topic: Oxidation and Reduction
Replies: 1
Views: 19

Oxidation and Reduction

Why does Cranium have a charge of 6+. Also if there is not given charge, how do you know the charge?
by kanikubari
Mon Feb 25, 2019 11:51 pm
Forum: Balancing Redox Reactions
Topic: 6L.3
Replies: 1
Views: 38

6L.3

In part B, why wasn't carbon included in the final reaction?
by kanikubari
Sun Feb 24, 2019 7:49 pm
Forum: Balancing Redox Reactions
Topic: Hydrogen?
Replies: 3
Views: 55

Hydrogen?

Does the reduction or oxidation of hydrogen matter? For example in problem 6k .1, the solution doesn't state hydrogen.
by kanikubari
Mon Feb 11, 2019 11:25 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: 4H.1 and 3
Replies: 1
Views: 40

4H.1 and 3

How can you tell which substance has the greater enthropy?
by kanikubari
Sun Feb 10, 2019 10:49 pm
Forum: Phase Changes & Related Calculations
Topic: Heat vs Q
Replies: 5
Views: 56

Heat vs Q

When do you use change of heat and when do you use Q?
by kanikubari
Sun Feb 10, 2019 8:10 pm
Forum: Phase Changes & Related Calculations
Topic: 4.18J or 0.38J
Replies: 8
Views: 213

4.18J or 0.38J

When do you know which one to use in an equation?
by kanikubari
Sun Feb 10, 2019 7:47 pm
Forum: Phase Changes & Related Calculations
Topic: 4A.7
Replies: 1
Views: 34

4A.7

What is the equation we use for this problem? Also when I checked the solutions manual, why were the grams multiplied by (4.18 J) and (0.38J)?
by kanikubari
Tue Feb 05, 2019 12:07 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Enthropy
Replies: 2
Views: 75

Enthropy

Are there given values for the constant pressure and volume?
by kanikubari
Sun Feb 03, 2019 10:08 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Hess's Law
Replies: 3
Views: 60

Hess's Law

How do you use Hess's law to find the reaction enthalpy? 8.61, 4D.19?
by kanikubari
Sun Feb 03, 2019 9:50 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Example in class
Replies: 1
Views: 37

Example in class

Can someone explain how he solved the example in class?
An exothermic reaction occurs in an open beaker producing net 8 moles of gas at 25C, what is the change in internal energy?
I mostly want to know how to set up the equation?
by kanikubari
Sun Feb 03, 2019 9:47 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Internal heat
Replies: 2
Views: 40

Internal heat

Why does change internal heat equal work+heat when the change of pressure=0?
by kanikubari
Mon Jan 28, 2019 10:02 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: 4E.5
Replies: 1
Views: 37

4E.5

On 4E.5 why is a, a triple carbon bond instead of a triple carbon-hydrogen bond.
by kanikubari
Mon Jan 28, 2019 8:49 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: 4.C.3
Replies: 1
Views: 39

4.C.3

Why do I have to multiply it by 8.3145 J?
by kanikubari
Sun Jan 27, 2019 8:49 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Open, closed, and isolated
Replies: 1
Views: 42

Open, closed, and isolated

8.1, How can you tell which one is open, closed , or isolated?
by kanikubari
Sun Jan 20, 2019 10:36 pm
Forum: Ideal Gases
Topic: OH and H3O
Replies: 10
Views: 282

OH and H3O

So is the general rule of thumb is that OH- and H3O+ determines whether it's an acid or base? Is there any other way of telling? Also how do you know if it's a strong acid or weak and same goes for base?
by kanikubari
Sun Jan 20, 2019 8:44 pm
Forum: Ideal Gases
Topic: pH and pOH
Replies: 18
Views: 352

pH and pOH

How do you know which one to solve for? For instance on 6B.5.
by kanikubari
Sat Jan 19, 2019 3:35 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: temperature
Replies: 2
Views: 49

temperature

Does temperature every affect or change the pressure or temperature of concentrations and pressure? For instance if I go from 500k to 300k.
by kanikubari
Sun Jan 13, 2019 7:24 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Calculating Q
Replies: 7
Views: 70

Re: Calculating Q

Okay, thanks guys! It confused me on problems like 5.1.9.
by kanikubari
Sun Jan 13, 2019 7:20 pm
Forum: Student Social/Study Group
Topic: New to Lavells's
Replies: 1
Views: 43

New to Lavells's

I took 20A last quarter and from what I can tell it is relatively the same concepts, I wanted to know if there were any key things I should know from 14A?
by kanikubari
Sun Jan 13, 2019 7:17 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: Calculating Q
Replies: 7
Views: 70

Calculating Q

I don't know if this has been asked already but when finding Q, how do you know when to put the reactant on top of the fraction or the product?

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