CHEMISTRY COMMUNITY

MariaReina_Garcia_3E

Still having trouble with knowing where to start counting the carbons when there is a double bond, any clarification If there is only a double bond in the molecule then you start counting on the side which gives it the lowest number. If there is a functional group and a double bond, then you give t...

MariaReina_Garcia_3E

Leo_Navejas_3B wrote:On the winter 2015 final, question 10A, do the phenols count as alcohols? Because I only count 3 alcohols and the solution says there's 5 :/

I had the same question. In the answer key or point distribution is says 4pt for identifying 4 correct functional groups, so I assumed it would be.

MariaReina_Garcia_3E

I believe the dash arrows are only shown during the transition step to indicate what molecule is attaching and which one is leaving.

MariaReina_Garcia_3E

My friends say discussion isn't mandatory and you can attend whichever one you'd like in his class.

MariaReina_Garcia_3E

I'm doing the practice finals and the midterms (again) and returning back to the topics/ questions that I had a hard time with. I just re-do the homework questions for that specific topic until I know how to do it well.

MariaReina_Garcia_3E

The gauche conformation would be more stable. Because the eclipsed has steric interactions and I believe torsional interactions. But when you look at the gauche conformation that is staggered with an angle of 60° versus the eclipsed by H conformation where it is eclipsed but the angle is at 120°, wh...

MariaReina_Garcia_3E

It's a bit difficult to explain. First draw 2-methylbutane (4 carbon chains and a CH3 in the second carbon, also draw all of your H molecules attached to the carbons). The C1-C2 refers to where the the molecule would be split for the Newman projection. The first three molecules would be.. so CH3-CH(...

MariaReina_Garcia_3E

Dear Dr. Lavelle, Thank you for being such an amazing professor! I admit, at the beginning, I was afraid of taking your class because I've always had a hard time understanding chemistry. I was honestly at the point where I thought I was a lost cause when it came to solving anything that had chem in ...

MariaReina_Garcia_3E

Julie Barreto 3A wrote:how would you draw out 2-butene or anything with a number in front of it ???

The -ene refers to a double carbon bond, while the 2 refers to the carbon in which the double bond begins. Therefore 2-butene will be c-c=c-c

MariaReina_Garcia_3E

Madeline Fox 2B wrote:Do we have to memorize all of the common names for substituent naming thats in the course reader?

Another question pertaining to this. Will it be specified if we have to name the compound with the IUPAC name or the common name?

MariaReina_Garcia_3E

for every question with bond enthalpies vs enthalpies of formation, will the question specify what they want? The question usually specifies it. The pattern I have encountered is that when they ask for bond enthalpies, they generally come with a table of bonds (H-O, C-C, etc). and when they want en...

CHEMISTRY COMMUNITY

Search found 11 matches

Re: Naming [ENDORSED]

Re: Alkenes and Functional Groups

Re: Transition Steps

Re: Switching Chem 14C discussion

Re: Strategies for studying for the final

Re: Stability of the Formation

Re: Help Drawing Newman Projections

Re: Saying Thank You to Dr. Lavelle

Re: Quiz 3 Winter 2017

Re: Quiz 3 Winter 2017

Re: Winter 2015 Midterm Question 2 and 3 D