CHEMISTRY COMMUNITY

Ethan_Kato_1D

How do you know if the drawing is supposed to be eclipsed or staggered? Is it based on the dihedral angle? If so, how does that work?

Ethan_Kato_1D

Gold strolls into a chemical bar. The bartender yells "Ay you! Get outta here!" (Get it, AU?)

Ethan_Kato_1D

When do you need to use cis and trans naming?

Ethan_Kato_1D

Any time there are lone pairs, does that make the compound a nucleophile?

Ethan_Kato_1D

For number 5, how are there 2 intermediates?

Ethan_Kato_1D

When you are naming a cycloalkane, and you find multiple names possible, how do you determine which is best? Do you pick the name with overall lower numbers? Do you compare each number consecutively? Do you pick the name with the lowest first number (because it is based alphabetically)? Why does the...

Ethan_Kato_1D

I am still confused when there are multiple possible names, which to select.
For example: 4-Ethyl-2,2-Dimethyl-hexane vs. 3-Ethyl-5,5-Dimethyl-Hexane. I know that the first name is correct, however how would you determine that? If it isn't by adding the total number, then what is it?

Ethan_Kato_1D

How do you tell if the rate limiting step is a second order reaction, thus a bimolecular nucleophilic substitution reaction?

Ethan_Kato_1D

Why do chemists like nitrates so much?

They are cost less than day rates!!!!

Ethan_Kato_1D

Why is it that when you add hydroxide to the reactant side of the half reaction, it is considered basic? Don't bases produce hydronium ions in solution?

Ethan_Kato_1D

The Answer in the solution manual states: "Assume no change in volume. To calculate the change in entropy for the hot and cold water, the amount of energy which flows from one to the other must first be calculated: q(c) = -q(h)." Why is that when there is no change in volume the heat of th...

Ethan_Kato_1D

8.3: Air in a bicycle pump is compressed by pushing in th ehandle. if the inner diameter of the pump is 3 cm and the pump is depressed 20 cm with a pressure of 2atm, (a) how much work is done in the compression? Why when finding the amount of work, Area times Distance is equal to the change of volum...

Ethan_Kato_1D

I am confused about how to find the standard states of compounds and elements for standard Enthalpies of formation. How do you know what state to use for each element and compound?

Ethan_Kato_1D

For a. What is the concentration of hydronium ions in a solution that is 0.075 M HCN (aq) and 0.060 M NaCN(aq)?

Why can you not use the Henderson-Hasselbalch equation to solve this? As opposed to 13.7?

Ethan_Kato_1D

The question asks to determine the pH and pOH of a solution that is 0.50 M NaHSO4 and .25 Na2SO4. What is the chemical equation for this reaction? If there are two steps, what are the two steps?

Ethan_Kato_1D

When ammonium chloride mixes with water, why does the Cl- not affect the overall pH. Couldn't Cl- accept a proton and form HCl, therefore increasing the pH?

Ethan_Kato_1D

Besides being a mere convenience, what are the purposes of pKa and pKb. What do they show or mean?

Ethan_Kato_1D

Is a diamagnetic compound more stable than a paramagnetic compound? Does the charge affect the stability as well?

Ethan_Kato_1D

To make a MO Diagram fro Li2 +, does it matter from which side/Li atom we take an electron from? Or can we take from either atom?

Ethan_Kato_1D

What is the Difference between Hybridized and unhybridized orbitals?

Ethan_Kato_1D

Does carbon exist more commonly as a radical rather than accepting a negative formal charge?

Ethan_Kato_1D

Joke 1: Is silicon the same in Spanish?
Answer: Si

Joke 2: I blew up my chemistry experiment...
OXIDANTS HAPPEN

Joke 3: I think I've Lost an Electron... In fact I'm Positive

Ethan_Kato_1D

Hello !

Is it possible to have a negative threshold energy value?

Ethan_Kato_1D

1.15: In the ultraviolet spectrum of atomic hydrogen, a line is observed at 102.6nm. Determine the values of n for the initial and final energy levels of the electron during the emission of energy that leads to this spectral line. So I know the wavelength of the light is 102.6nm. I began solving thi...

Ethan_Kato_1D

Hi! The following question is not under the limiting reactant section, but is rather under "L- Reaction Stoichiometry". L.39: A 1.50-g sample of metallic tin was placed in a 26.45-g crucible and heated until all the tin had reacted with the oxygen in air to form an oxide. The crucible and ...

CHEMISTRY COMMUNITY

Search found 25 matches

Chapter 3 Question 7

Re: Post All Chemistry Jokes Here

When to use Isomers

Lone Pairs

Re: Quiz 3 Winter 2017

Multiple possible names

Different Substituent Numbers

Bimolecular Nucleophilic Substitution Reaction

Re: Post All Chemistry Jokes Here

Acidic and Basic Solutions

Chapter 9 Q43

Problem Three Part A

Standard Enthalpies of Formation Basics

Chapter 13 #5

Chapter 13 #7a

The effect of Cl- [ENDORSED]

Purpose of Acidity and Basicity Constants

Stability [ENDORSED]

MO Setup

Hybridization

Carbon as a radical

Re: Post All Chemistry Jokes Here

Threshold Energy

Chapter 1 Question #15 [ENDORSED]

Reaction Stoichiometry L 39 [ENDORSED]