Search found 15 matches

by William_Lee_Dis_3H
Fri Mar 17, 2017 2:14 am
Forum: *Haloalkenes
Topic: Green Book Chapter 2 Question 16
Replies: 2
Views: 928

Re: Green Book Chapter 2 Question 16

On page 50 of the green book, E-3-chloro-4-fluoro-7-methyloct-3-en-5-yne, they number giving priority to the halogens, so I am confused on what the rule is
by William_Lee_Dis_3H
Fri Mar 17, 2017 12:40 am
Forum: *Haloalkenes
Topic: Green Book Chapter 2 Question 16
Replies: 2
Views: 928

Green Book Chapter 2 Question 16

The answer key says the answer is 3-chloro-3-fluoropropene. Shouldn't the answer be 1-chloro-1-fluoro-2-propene? The two halogens should be on carbon 1 because they get priority over the triple bond. Or am I missing something?
by William_Lee_Dis_3H
Wed Mar 15, 2017 5:06 pm
Forum: *Haloalkenes
Topic: Which gets priority in naming?
Replies: 1
Views: 465

Which gets priority in naming?

In the green book, when it says"The functional group has priority in numbering over hydrocarbon side chains" (page 47) does that mean we should prioritize our numbering with functional groups over double bounds and triple bonds?
by William_Lee_Dis_3H
Sat Mar 04, 2017 9:08 pm
Forum: *Free Energy of Activation vs Activation Energy
Topic: 4.29 Green book
Replies: 3
Views: 1104

Re: 4.29 Green book

Ea1>Ea2 because step 1 involves breaking two bonds whereas step 2 is the formation of one bod. Therefore k1<k2
by William_Lee_Dis_3H
Sat Mar 04, 2017 5:14 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Chapter 15 Question 67
Replies: 1
Views: 185

Chapter 15 Question 67

Why does the answer in the solutions manual only have one sig fig while the question provides numbers with 2 sig figs and 3 sig figs? Shouldn't the answer have 2 sig figs?
by William_Lee_Dis_3H
Sat Mar 04, 2017 5:04 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Chapter 15 Question 65
Replies: 1
Views: 256

Chapter 15 Question 65

Why would increasing the temperature increase the rate constant of the reaction with the higher activation barrier more than it will the rate constant of the reaction with the lower energy barrier?
by William_Lee_Dis_3H
Sat Feb 25, 2017 2:38 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7578
Views: 1012295

Re: Post All Chemistry Jokes Here

Do you have 11 protons?
Cause you sodium fine
by William_Lee_Dis_3H
Sun Feb 12, 2017 3:42 pm
Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
Topic: Practice Midterm Winter 2013: Q5B
Replies: 3
Views: 397

Practice Midterm Winter 2013: Q5B

There was a previous response that stated that the degeneracy of configurations takes priority over masses. I am confused as to the answer for question 5b. Shouldn't CF4 have the lowest molar entropy because it only has 1 possible orientation and CH2F2 should have the highest because it has 6 orient...
by William_Lee_Dis_3H
Sun Feb 12, 2017 2:18 pm
Forum: Calculating Work of Expansion
Topic: Practice Midterm Q3A Winter 2013
Replies: 5
Views: 434

Practice Midterm Q3A Winter 2013

When calculating the work done by the steam, which mass of the water should we use from part A? The mass of the water was rounded to 77.0 grams but then in the solutions they used the non-rounded value to calculate the work done. This results in answers differing by about 5 Joules.
by William_Lee_Dis_3H
Sat Feb 11, 2017 6:02 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Chapter 14 Homework Problem #47 [ENDORSED]
Replies: 1
Views: 219

Chapter 14 Homework Problem #47 [ENDORSED]

In the solutions manual how do they go from 15=lnQ to Q= 10^6 ?If you take e^15 the Q is 3269017. How did the solutions manual get Q= 10^6 ?
by William_Lee_Dis_3H
Fri Feb 10, 2017 11:20 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7578
Views: 1012295

Re: Post All Chemistry Jokes Here

NaCl NaOH
RED ALERT! THE BASE IS UNDER A SALT!!
by William_Lee_Dis_3H
Sat Feb 04, 2017 2:40 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7578
Views: 1012295

Re: Post All Chemistry Jokes Here

Two scientists walk into a bar The first one says “I’ll have some H2O.” The second one says, “I’ll have some H2O too.” Then he dies.
by William_Lee_Dis_3H
Mon Jan 23, 2017 5:48 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: HW 9.13
Replies: 3
Views: 416

HW 9.13

When calculating the entropy change due to the change in temperature, where does the the equation delta S = n R ln (t2/t1) come from in the solutions manual? Shouldn't the equation be delta S = n C ln(t2/t1)? And how are we supposed to assume that there are 1.00 moles of N2 gas without the problem e...
by William_Lee_Dis_3H
Sun Jan 22, 2017 8:08 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Chapter 8 Question 49
Replies: 1
Views: 222

Chapter 8 Question 49

For chapter 8 question 49, when we are calculating the work using -delta nRT, the question never states the temperature but the solutions manual uses a temperature of 298 K; standard room temperature. Are we supposed to assume that the temperature is 25 degrees Celsius even though the question never...
by William_Lee_Dis_3H
Fri Jan 13, 2017 7:33 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Chapter 9 Question 31
Replies: 1
Views: 262

Chapter 9 Question 31

For part b how do you know to use (3/2) R to get C?

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