CHEMISTRY COMMUNITY

Eman_Burney_1D

On page 29 of the green Introduction to Organic Chemistry textbook, there is an example listed as 1,4-Cyclohexdiene. It is stated in the textbook that if there is only one possible structure, numbering is not required , and from what I got, 1,4-Cyclohexdiene has only one possible structure. So is th...

Eman_Burney_1D

On page 49 in the green introduction to chemistry textbook, there is a compound listed as (Z)-2-Fluoro-3-pentene. How is this an example of a compound with "Z"? Is F a higher priority substituent than CH₃? If so, how did you know that?

Eman_Burney_1D

On page 103 of the course reader, the example on top of the page is named cis-2-pentene (example below, ignore the periods): H_3C..CH_2CH_3 .. \ ...../ .. C=C .. / .... \ ..H .... H My question is, how is this a cis example, if H_3C and CH_2CH_3 are not the same? Would this be labeled as cis just fr...

Eman_Burney_1D

But if I was asked to use the IUPAC name, how would you go about doing that? How do you get 4-(1-methylethyl) decane?

Eman_Burney_1D

Question 1 of quiz 3 preparation asks to name the compound shown below (ignore the periods, I had to use them to keep the formatting): ......................................CH(CH 3 ) 2 ......................................| CH 3 CH 2 CH 2 CH 2 CH 2 CH 2 CHCH 2 CH 2 CH 3 For the answer, I got 4-isop...

Eman_Burney_1D

On page 93, the compound listed is (ignore the periods, I used them to keep the substituents above the specific carbons as listed on page 93) : ..... CH 3 .CH 2 CH 3 ..... | .......| CH 3 CCH 2 CHCH 2 CH 3 ...... | ...... CH_3 The name, as stated on the page, is 4-ethyl-2,2-dimethyl-hexane. What is ...

Eman_Burney_1D

Hello! For textbook exercise 15.71 (page 660), the question states: The hydrolysis of an organic nitrile, a compound containing a –C≡N group, in basic solution, is proposed to proceed by the following mechanism. Write a complete balanced equation for the overall reaction, list any intermediates, and...

Eman_Burney_1D

Graphically, if you see that the line has a negative slope (slope= -k), with time on the x-axis and ln[A] on the y-axis, this will tell you it is a first-order reaction. Additionally, rate= k[A] (differential rate law) signifies this as well, versus rate= k[A]^2 signifying a second-order reaction. L...

Eman_Burney_1D

Correct me if I am wrong, but I think if an object has a lower heat capacity, that means it cools and heats up faster, versus an object that has a higher heat capacity would heat and cool slower. So water, with the higher heat capacity, would require more ice because it cools slower than orange juic...

Eman_Burney_1D

On page 180 in the course reader, question 2 part a) states: "For the reaction: 2CO(g) + O_2(g) ---> 2CO_2(g) Without doing calculations, predict the sign of delta S_sys. " The answer is given, delta S_sys<0 , but there is no explanation. I am not sure what the reasoning as to why delta S_...

Eman_Burney_1D

In class we have been writing anode on the left hand side and cathode on the right hand side of the cell diagram. Is there a particular reason for this? Also, on page 47, I know it states that standard reduction potential is an intensive property, so that would mean the value cannot be multiplied or...

Eman_Burney_1D

I was looking back at questions I had done, and for 8.25 I am still unsure as to why the internal energy result is negative. Here is the question: A constant-volume calorimeter was calibrated by carrying out a reaction known to release 3.50 kJ of heat in 0.200 L of solution in the calorimeter (q=-3....

Eman_Burney_1D

On the top of page 30 of the course reader there is a section that states, "example of a link between the number of accessible states (S)(microstates) and a macroscopic property (bulk property, V)." What is this referring to, as in what is the example being referred to? Also, I am not sure...

Eman_Burney_1D

On page 20 of our course reader, dealing with water, the amount of heat released is -2.9 kJ. Is the answer negative because H + OH ---> H2O is an exothermic reaction (because a bond is being formed, thus giving off heat), and the fact that an exothermic reaction means delta H is negative? Or does it...

Eman_Burney_1D

1. Cation: an ion with a paws-itive charge

2. Chemistry puts the "cation" in education!

CHEMISTRY COMMUNITY

Search found 15 matches

When to number (pg.29 intro to chem textbook)

Page 49 of Organic Chem textbook-Z or E

Course reader page 103- cis

Re: Quiz prep 3 question 1 [ENDORSED]

Quiz prep 3 question 1 [ENDORSED]

IUPAC naming on page 93

Textbook question 15.71

Re: Order equations

Re: Winter 2013 Midterm Q2A

Winter 2014 Final question 2a)

Anodes and Cathodes, and Standard Reduction Potential

HW Ch.8 question 8.25

Microstates and macroscopic property

Specific heat capacity [ENDORSED]

Re: Post All Chemistry Jokes Here