# All Questions

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### Why is mass proportional to the strength of a dipole-dipole attraction? meaning more mass more strength [duplicate]

I don't understand why the mass of a molecule make it attract more to other polar molecules.
223 views

### Is N-methylimidazole an unusual solvent, or are there more common substitutes for it?

I want to test a process that was documented in the literature using N-methylimidazole. I am not doing academic research, but rather testing a documented reaction for application to an industrial ...
89k views

### Half equations for H2O2 for its reducing and oxidising nature in acidic and alkaline medium

Is there a complete list of all the half equations for $\ce{H2O2}$ - both oxidation and reduction, in acidic and alkaline conditions? I've looked on the internet but can't seem to find a list with all ...
2k views

### How does glue work?

Simple question. How does household glue work? How does it attach to almost any other compound? Thanks.
360 views

908 views

### Find the molecular formulas of these alkanas and alkenes [closed]

Can Somebody please solve this chemistry question It came as a part of a previous test and i wasn't able to find a way to use ny/nx since all my answers would be negative. It wasn't a homework problem....
586 views

### What is the compression work? [closed]

A cylinder contains 2 kg of steam at 200 kPa and 200 $^\circ$C. Now steam is compressed at constant pressure until its temperature rises to 250 $^\circ$C. What is the work done during this compression ...
127 views

### Boilng vodka for A/C cleaning

I hope this doesn't sound too strange. I have plenty of cheap vodka and want to clean the A/C on my car. So I thought about boiling 1/2 litre of vodka in my car while I ran the A/C with ...
2k views

### Why is Cyclodextrin cavity hydrophobic?

Actually this is going to be a list of interconnected questions. Please bear with me. Wikipedia article on cyclodextrin (CD) says that it is hydrophobic from inside. (1) How is it hydrophobic when ...
302 views

### Octahedral Voids

The total number of octahedral void(s) per atom present in a cubic closed pack structure is (a) 1 (b) 2 (c) 3 (d) 4 PS- I answered it (d) 4 but a key on internet says it is (a) 1. Please clarify ...
9k views

### Cathode + Anode + Rechargeable battery

I'm confused by the following from this webpage: The cathode is a metal oxide and the anode consists of porous carbon. During discharge, the ions flow from the anode to the cathode through the ...
24k views

### Why NH4OH? Why not NH3(aq)?

The title says it all. I had this question when helping someone with their high-school chemistry homework. What are the reasons that someone would use an (from my point of view) obfuscated notation?
1k views

### Titration color change duration [closed]

Why is it that in titration a color change occurs initially but then the solution quickly reverts to its previous color? Thanks so much!
1k views

### Which one really determines how people feel. Heat or temperature? [closed]

We use water to cool down some machines because water has high heat capacity, which means it takes more energy to increase 1 degree. Heat transfer occurs only when temperature is different. We cool ...
What are the products of the following hydrolysis reaction? How do you know? $$\ce{NH4NO3 + H2O <=> ?}$$