All Questions

39,823 questions
Filter by
Sorted by
Tagged with
23 views

36 views

Purpose of Sodium Fluoride (NaF) in Sodium Hydrogen Sulphate (NaHSO4) acid pickling solution?

I am a proud home workshop electroplating fanatic, and the kit I sourced (from another country, with five weeks shipping) contained this bag of "Dry acide salts". I'm trying to source the ...
45 views

Attempting to make Rochelle salt but obtained paste

I was attempting to make Rochelle salt by adding sodium carbonate to a mixture of cream of tartar and water, but ended up with a solid paste. I kept the cream of tartar/water mix boiling the whole ...
31 views

Is the answer of this question wrong? [closed]

Today I stumbled upon a question which I found here. The following question given below consist of an Assertion and Reason type questions. Use the following key choose the appropriate answer. ...
36 views

What does valence electron mean (in the context of spdf orbitals)?

For a little bit of context, my background is in physics and my understanding of chemistry doesn't go past, say, middle school level. Recently, I decided to self-study chemistry and picked up "...
2k views

Is Ammonia (NH3) base?

In my text book, it is written that $\ce{NH3}$ is a base. They mentioned the reason for this is that it produces $\ce{OH-}$ ions in water. They stated this reaction: $\ce{NH3 + H2O -> NH4OH}$ So ...
26 views

Why does the pi3 MO of octatetraene look like this? [closed]

How it's drawn usually: Can I draw it like this instead? If not, what is a systematic way to derive where the nodal planes are located? Why must it be like 2, 4, 2 and not 3, 2, 3?
43 views

Why is C-S-C bond angle in thiirane so small at 48.5 degrees?

Why is the C-S-C bond angle in thiirane (48.5 degrees) so much smaller than C-O-C bond angle in oxirane/epoxide (60 degrees). Source: https://coek.info/pdf-three-membered-ring-heterocycles-.html