This is a good one!
Search found 10 matches
- Thu Mar 10, 2016 2:04 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3640066
Re: Chemistry Jokes
This is a good one!
- Sun Mar 06, 2016 8:56 pm
- Forum: *Alkanes
- Topic: Functional Groups
- Replies: 1
- Views: 340
Re: Functional Groups
From my understanding we will not need to know the priorities of functional groups based on what was said during lecture. I would ask him in class though and maybe update this thread so people could see...
- Sun Mar 06, 2016 8:52 pm
- Forum: *Alkynes
- Topic: Both an alkyne and alkane
- Replies: 1
- Views: 1353
Re: Both an alkyne and alkane
Double bond takes precedent. It is an alkyne.
- Mon Feb 29, 2016 5:43 pm
- Forum: *Electrophilic Addition
- Topic: How many intermediates are there in electrophilic additions?
- Replies: 5
- Views: 1128
Re: How many intermediates are there in electrophilic additi
It is a two step equation so there would be two intermediates and two transition states.
- Mon Feb 29, 2016 5:40 pm
- Forum: *Alkanes
- Topic: Difference between Neopentyl and Tert-butyl
- Replies: 1
- Views: 507
Re: Difference between Neopentyl and Tert-butyl
In tert-groups the carbon is located on the cross. In neo-groups the carbon is located past the cross.
- Thu Feb 18, 2016 7:56 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Partial charges
- Replies: 1
- Views: 428
Re: Partial charges
If it is polar it will have regions of partial and negative charge.
I.E. H2O
Oxygen is more negative and Hydrogen is more positive generally
I.E. H2O
Oxygen is more negative and Hydrogen is more positive generally
- Wed Feb 17, 2016 5:42 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Mid term sig figs
- Replies: 1
- Views: 407
Re: Mid term sig figs
There should be three significant figures
1.20V
1.20V
- Sat Jan 23, 2016 5:24 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Homework Question 8.11 (Reversible vs. Irreversible)
- Replies: 1
- Views: 357
Re: Homework Question 8.11 (Reversible vs. Irreversible)
When doing part A you use w=-P*deltaV. This gives you -1.20 atm*L or -121.59 J. But when you calculate reversible expansion you use the formula w = -nRTln(V2/V1) giving you -343.6 J. You use that formula by definition for reversible expansion, because of the infinetley small changes or "infinit...
- Mon Jan 18, 2016 4:41 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: calculating work (w)
- Replies: 1
- Views: 375
Re: calculating work (w)
You could write your answer in any unit, but usually use kilo joules if it is in the thousands. Unless the question specifically asks for a specific unit of measurement I don't think it would matter assuming your answer is correct.
- Sat Jan 09, 2016 10:21 pm
- Forum: Phase Changes & Related Calculations
- Topic: State Properties
- Replies: 1
- Views: 348
Re: State Properties
Two examples of properties that are not state properties are Work (w) and Heat (q). For a state property such as temperature the initial and final value are all that matter i.e. if the initial temperature is 50°C then it moves to 60°C and then its final temperature is 70°C. The change in temperature...