CHEMISTRY COMMUNITY

Serena Sahota 1A

Usually, it will be in seconds unless stated otherwise.

Serena Sahota 1A

First, a catalyst is something that is needed in order to get a reaction going, it is already formed initially. It usually lowers the activation energy and isn't used up in the reaction. An intermediate is formed as a product and then can be formed into a reactant.

Serena Sahota 1A

A Half-life is the time is takes for a reaction to decay in one half as to its original amount. Another way of remembering what a half-life is through exponential decay.

Serena Sahota 1A

How do you calculate the molar solubility of silver bromide in 0.10 M KCN(aq)?

Serena Sahota 1A

How would I find the following?

(a) Write balanced half-reactions for the redox reaction of an acidified solution of potassium permanganate and iron(II) chloride. (b) Write the balanced equation for the cell reaction and devise a galvanic cell to study the reaction (write its cell diagram).

Serena Sahota 1A

How would I find the following for part C?

Write the half-reactions, the balanced equation for the cell reaction, and the cell diagram for each of the following skeletal equations:

Serena Sahota 1A

In part b, how would you calculate the standard reaction Gibbs free energy?

Serena Sahota 1A

In exercise 6k.1, how would you write and balance the oxidation half-reaction that is shown?

Serena Sahota 1A

From an equation, you can tell when it is oxidized when there is a loss of electrons and it is reduced when there is a gain of electrons.

Serena Sahota 1A

Hi, can someone explain how to do this problem? A particular container holds 2.15 mol of neon gas. The volume of this container can be altered by sliding a piston in or out. The volume is changed from 8.80L to 4.40L while at the same time the temperature is changed from 334K to 218K. The molar heat ...

Serena Sahota 1A

Hi, can someone explain the differences from open, closed, and isolated systems? What are ways of determining them?

Serena Sahota 1A

Hi, can someone explain what the difference between ∆G and ∆G° is?

Serena Sahota 1A

Can someone guide me through this textbook problem? 4H.9 Container A is filled with 1.0 mol of the atoms of an ideal monatomic gas. Container B has 1.0 mol of atoms bound together as diatomic molecules that are not vibrationally active. Container C has 1.0 mol of atoms bound together as diatomic mol...

Serena Sahota 1A

You can determine the sign of work from the following two things.

If there is work being done BY the system, the work is negative and if there is work being done ON the system, the work is positive.

Serena Sahota 1A

Hi, could someone help me solve this problem? The molar heat capacity for carbon monoxide at constant volume is CV, m=20.17 J/(K·mol). A 20.00L fixed-volume flask contains CO(g) at a pressure of 5.00 kPa and a temperature of 25.0 °C. Assuming that carbon monoxide acts as an ideal gas and that its he...

Serena Sahota 1A

For textbook problem 4I.5, can someone guide me through solving it?

Serena Sahota 1A

Yes it is possible, when heat is absorbed, Delta H will be positive and when entropy decreases, Delta S is negative.

Serena Sahota 1A

Yes it is possible, when heat is absorbed, Delta H will be positive and when entropy decreases, Delta S is negative.

Serena Sahota 1A

Hi, can someone guide me through solving textbook problem 4G.5?

Serena Sahota 1A

The difference between ln vs log is that ln = loge(x) while log = log10(x).

Serena Sahota 1A

How would I find C in the following problem? At constant volume, the heat of combustion of a particular compound, compound A, is −3987.0 kJ/mol. When 1.545 g of compound A (molar mass =114.99 g/mol) is burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by ...

Serena Sahota 1A

After you have completed the ICE table, you would use the quadratic formula to solve for x.

Serena Sahota 1A

For a solution to be an alkaline, it has a pH greater than 7.

Serena Sahota 1A

You are able to download the textbook and read it offline.

Serena Sahota 1A

To answer your question, a large Ka will show a strong acid and a large pKa shows a weak acid. Bases would also be vise versa

Serena Sahota 1A

Something that helps me when I get anxiety before a test is listening to music and taking deep breaths.

Serena Sahota 1A

Why are solids and liquids not included in equilibrium constant?

Serena Sahota 1A

Why are solids and liquids not included in equilibrium constant?

Serena Sahota 1A

For question 8 part 2, How will the system respond to a temperature increase?

Serena Sahota 1A

How do you identify when to write the equilibrium constant as Kc or Kp?

Serena Sahota 1A

I was having difficulty understanding this question,

What can be said about Q and K immediately after an increase in temperature?

A)Q>K because Q increased.
B)Q>K because K decreased.
C)Q<K because K increased.
D) Q<K because Q decreased.
E) Q=K because neither changed.

CHEMISTRY COMMUNITY

Search found 31 matches

Re: units for rate laws

Re: Catalyst vs. Intermediate

Re: Half-Life

Textbook Problem 6I.11

Textbook Problem 6L.9

6L.6 Textbook Problem

Textbook Exercise 6L.1

Textbook Exercise 6k.1

Re: Oxidized v Reduced

Achieve Hw #6

Types of Systems

∆G and ∆G°

Textbook problem 4H.9

Re: Sign of work

Achieve Wk 5 #5

4I.5

Re: concept

Re: concept

Textbook problem 4G.5

Re: ln vs log

Achieve HW #12

Re: Quadratic Formula

Re: Acids and Bases

Re: Textbook Inquiry [ENDORSED]

Re: pKa

Re: Final Jitters

Solids and Liquids

Solids and Liquids

Question 8 Part 2 Achieve Homework

Equilibrium constants

Chemical Equilibrium