Search found 8 matches
- Sun Mar 12, 2017 11:43 pm
- Forum: *Alkenes
- Topic: Naming Alkenes and Alkynes
- Replies: 2
- Views: 623
Re: Naming Alkenes and Alkynes
When naming alkenes and alkynes, you start numbering at the double (or triple bond) and continue numbering through it. However, if there is a functional group, you start numbering at the C it is attached to, and then move in the direction that would give the double or triple bond the lowest number.
- Sun Mar 05, 2017 7:08 pm
- Forum: *Alkanes
- Topic: Alkane vs Alkyl
- Replies: 1
- Views: 9600
Re: Alkane vs Alkyl
An alkane is a saturated hydrocarbon, which means there are only carbon-carbon single bonds. The -ane part of the naming is what indicates that the hydrocarbon has only single bonds. Alkyls are the substituents in alkanes. When naming the substituent, the ending -ane is changed to -yl. An alkene is ...
- Sun Feb 26, 2017 10:55 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Textbook question 15.71
- Replies: 3
- Views: 1326
Re: Textbook question 15.71
The hydroxide ion appears as a reactant in the first step and as a product in the second step, so it was not consumed in the reaction, which makes it the catalyst. This property allows for catalysts to act repeatedly.
- Sun Feb 12, 2017 7:27 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3705039
Re: Post All Chemistry Jokes Here
here is a joke
- Sun Feb 05, 2017 10:40 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3705039
Re: Post All Chemistry Jokes Here
joke below :)
- Sun Jan 29, 2017 10:38 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3705039
Re: Post All Chemistry Jokes Here
Does anyone know any jokes about sodium? Na. Yeah, I know that was sodium funny!
- Sun Jan 22, 2017 9:40 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Calculating the work done when a gas expands
- Replies: 1
- Views: 406
Re: Calculating the work done when a gas expands
There's an older post about this. But basically you use the 100 g to cancel out with the grams in the density to give you the volume (convert from cm^3 to L), you do it for both water and ice. Then you find the change in volume and plug into the equation for work. In the end you have to convert to j...
- Sun Jan 15, 2017 10:16 pm
- Forum: Phase Changes & Related Calculations
- Topic: Enthalpy of Sublimation
- Replies: 3
- Views: 704
Re: Enthalpy of Sublimation
Enthalpy is a state function so only the initial and final states matter. So you can do final-initial, which in this case is the enthalpy of the vapor (the final state) minus the enthalpy of the solid (the initial state).