CHEMISTRY COMMUNITY

jillianduffield_2D

For balancing redox reactions, is there a rule for when we use OH- instead of H+ and vice versa?

jillianduffield_2D

Organic chemistry is hard. People who study it have alkynes of trouble.

jillianduffield_2D

Should we know how to name compounds with more than one functional group? If yes, what is the order of priority for the different functional groups?

jillianduffield_2D

In a sports relay race, a chemical kinetics specialist runs slowly, and his group loses the race.
When the chemical kinetics specialist is asked why he ran slowly, his reply was “I always wanted to be the significant rate determining step”.

jillianduffield_2D

In part C of the solution for this problem we are told to use ln([A]0/[A]t) = kt. Are there certain times when it is better to use this form of the equation over ln([A]t/[A]0) = -kt?

jillianduffield_2D

Balance each equation of the following skeletal equations using oxidation and reduction half-reactions. All of the reactions take place in basic solution. Identify the oxidizing agent and reducing agent in each reaction. a) Action of ozone on bromide ions: My question is why did the H2O molecules no...

jillianduffield_2D

Which would you expect to have a higher molecular entropy at T = 0, single crystals of BF3 or of COF2? Why?

I have read this section in the textbook and the answer in the workbook several times and I'm just not grasping the concept. Could someone help explain this to me?

jillianduffield_2D

How much heat is required to convert a 42.30g block of ice at -5.042 degrees C into water vapor at 150.35 degrees C?
In this problem where is the equation used written either in the textbook or course reader?

jillianduffield_2D

Exothermic reactions? I studied them before they were cool.

jillianduffield_2D

What is the difference between thermodynamics and a stick?

A stick has two ends and no beginning. Thermodynamics has two ‘beginnings’ (the first and second law) and no end.

jillianduffield_2D

In part D of this question, the value of x is ignored in the reactants when calculating Kc. How do we know if we are supposed to include x or leave it out because the value is so small that it doesn't make a difference in the outcome?

jillianduffield_2D

Q4C. Dimercapto (2,3-dimercapto- 1-propanol) is an effective chelating agent for heavy metals such as arsenic, mercury, antimony, and gold. Draw one possible structure showing binding of one dimercaprol to Hg2+.
I see the answer on the page I am just very confused on how to get to the answer.

jillianduffield_2D

7. The following flasks show the dissociation of a diatomic molecule, X sub 2, over time. (a) Which flask represents the point in time at which the reaction has reached equilibrium?
How do we look at the picture and know that it has reached equilibrium?

jillianduffield_2D

Q: What is a cation afraid of?
A: A dogion.

jillianduffield_2D

Q: What do dipoles say in passing?
A: "Have you got a moment?"

jillianduffield_2D

Q: What do you do with a sick chemist?
A. First you try to helium, then you try to curium, but if this fails then you have to barium.

jillianduffield_2D

I want to join! Just let me know when and where

jillianduffield_2D

On the basis of the expected charges on the monatomic ions, give the chemical formula of each of the following compounds: a) magnesium arsenide
I don't understand how to get to the answer for this question

jillianduffield_2D

2.19
b) How many values of m sub l are allowed for an electron in a 6d-subshell?
c) How many values of m sub l are allowed for an electron in a 3p-subshell?
I am confused on how to get the answers to these questions

jillianduffield_2D

1.37 Protons and neutrons have nearly the same mass. How different are their wavelengths? Calculate the wavelength of each particle when traveling at 2.75 x 10^5 m/s in a particle accelerator and report the difference as a percentage of the wavelength of the neutron. What does it mean to "repor...

jillianduffield_2D

a) Write the formula for nitric acid. b) Without doing a calculation, estimate which element in nitric acid occurs with the greatest mass percentage.
How am I supposed to complete part b without doing a calculation?

CHEMISTRY COMMUNITY

Search found 21 matches

Balancing with OH- v. H+

Re: Post All Chemistry Jokes Here

more than one functional group [ENDORSED]

Re: Post All Chemistry Jokes Here

15.25

14.5 part A

9.23

8.87

Re: Post All Chemistry Jokes Here

Re: Post All Chemistry Jokes Here

Fall 2014 Final Exam Q5D.

Final Review 2014 Q4C [ENDORSED]

11.07a

Re: Post All Chemistry Jokes Here

Chemistry Joke

Chem Joke

Re: Delta Terrace Study Group

HW 3.25 part a

Question 2.19 part b and c [ENDORSED]

1.37 [ENDORSED]

Fundamental F. 3 Part B