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Results found
Search options title help
questions only
not deleted
0
votes
2
answers
428
views
Help with uncertainties
When diluting a mixture of two reactants with lets say a 100ml of H2O, how do you add this to the uncertainties of the concentrations of the reactants? Should the relative uncertainty of the added H2O …
- 109
4
votes
1
answer
129
views
Help identifying glassware
I am helping clean out my lab and there is some glassware that I can't identify. Attached are the photos:
Thank you!
- 49
1
vote
1
answer
2k
views
Nucleophilic Substitution Reactions help
Which halogenoalkane reacts fastest with sodium hydroxide?
A. 1-iodobutane
B. 1-chlorobutane
C. 2-chloro-2-methylpropane
D. 2-iodo-2-methylpropane
Iodine has a larger radius, thus less electron …
1
vote
0
answers
35
views
Help on Research Proposal [closed]
I am a freshman majoring in chemistry. I am aware that one of the tasks required in this field is extensive research, and I am encountering a big problem. I am lost as to how to think of a plausible p …
- 39
0
votes
1
answer
133
views
Silicone water repellent help [closed]
Is there a chemical or solution that can penetrate silicone water repellents in fabric? Need to break down or penetrate the silicone water repellent in selected areas.
- 17
-4
votes
1
answer
97
views
Help with Paraffin wax
I am trying so hard to figure out what I am missing or what I need to use to make a lava lamp in a bottle with no heat and is safe?
Ingredients below are specifically for a lava lamp which includes us …
- 5
-2
votes
3
answers
515
views
Need help understanding Enthalpy
My chemistry textbook says that:
Enthalpy (Internal Energy) = chemical potential energy + thermal energy
Now, I know that Enthalpy and Internal Energy are different so I really don't understand what …
- 13
2
votes
2
answers
2k
views
Help interpreting IR spectrum
Can anyone help us identify the compound we have produced? …
2
votes
1
answer
102
views
sn2 mechanism help please?
My mechanism for this conversion is an intramolecular attack sn2 to displace Cl- anion. OH- can then attack this aziridinium intermediate, but will the nucleophile not attack preferentially at the mos …
- 1,120
-1
votes
1
answer
184
views
-1
votes
1
answer
90
views
Organic Chemistry Help Please! [closed]
I'm not sure how to even start these two problems. How do you predict the structure of something when its molecular formula isn't provided to you? Also how do you calculate percent purity from thi …
- 11
2
votes
1
answer
98
views
Help with naming molecule
I am trying to name the molecule pictured below. I thought it would be 5-bromo-4-isopropyl-2-methylhex-2-ene, but googling that name does not show any results, which makes me think it is not right. Ca …
- 29
1
vote
0
answers
767
views
Help understanding Electrochemistry diagram
I was reading some literature when i came across the following figure and was wondering if someone could help explain it to me. …
- 291
-2
votes
1
answer
114
views
Help with this mechanism? [closed]
Any help would be appreciated. Sorry about the red squiggly box around Na2CO3; I'm not very familiar with ChemDraw. …
- 1
1
vote
0
answers
35
views
Iodine/iodide electrochemistry help
Any help is appreciated as I am new to this.
Thanks …
