The Periodic Table

1,3-feeds

00:38

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Q: Meta Event -- Shoutout to Chem.SE contributors

With an average of one downvote for every three upvotes, and with a 51.4 badness ratio (we're #1!*), we're a pretty positive site... right?? $$\color{red}{\text{WAIT... I SHOULDN'T BE CELEBRATING}}$$ Let me try again. With an average of one downvote for every three upvotes, and with a 51.4 badn...

pentavalentcarbon

02:40

> If I rub a balloon on a cat (as I am wont)

oh dear

Nick Alexeev

0

Q: Eletrolysis of water

The electrolyser used in the process at 25°C and 10.0 bar exhibits a global yield of 82% with a potential of 1.481 V. Determine the electrical energy that can be electrolyzed by year in order to get molar flow of hydrogen: $F(H_2) = 12.016 \times 10^6\ mol/h$. So, can anyone help with the calcula...

chemical-engineering chemistry

Pritt Balagopal

05:17

8

Q: Software to name compounds

Background: I study from a book that happens to have numerous errors, and they matter greatly especially in the chapter on IUPAC naming of compounds. I hope there was a service that'd enable to cross check those names without having to post a new question for every new compound. Also note that w...

discussion

Doesn't this question belong on Main? Why is that on meta?

Avnish Kabaj

07:23

0

A: Mirror reaction - avoiding silver nitride

165 deg c. Preparation of Tollen's Reagent; dilute sodium hydroxide is added to a dilute solution of silver nitrate. a brown precipitate is formed. it is dissolved in dilute ammonium hydroxide solution(1) Add this solution to a reducing sugar, for example glucose. heat this solution in a test tub...

This answer makes me feel uncomfortable

Gaurang Tandon

11:28

@PrittBalagopal perfectly close-worthy question as "too broad". If I saw such a question on main, I would CV it immediately

orthocresol

Same can be said of the resources post, tbh.

Maybe it should be merged into that post, under software, I don't know.

Gaurang Tandon

@orthocresol it's locked :/

orthocresol

Yeah, it is, but I have the powers

Gaurang Tandon

@orthocresol but it originated after internal community discussion, not out of nowhere by a <1k user, which I was when I made that post :P

@orthocresol oooo maybe it's time to show some magic here ;)

orthocresol

I'm not sure. I think merging it with the resources post makes sense to me, but we'll see if anybody else has an opinion

Gaurang Tandon

11:46

why is the CV queue in double digits these days? every morning I find it at 16-17. is any regular CV reviewer AWOL?

Gaurang Tandon

12:15

my rep these days is so, so sad :( i should get back to posting some more Qs and As, but dang I am super lazy :/

(this is a shameless plug to let you guys know I NEEDZ MOAR UPVOTES)

Avnish Kabaj

12:55

Pls post highschool orgo questions

Need 3K

pentavalentcarbon

I was busy for a little while, I'll check it now

Avnish Kabaj

First time ever my meta participation got upvoted

Downvoting homework questions/bad content is good citizenship.In my opinion the community has a pretty positive environment. — Avnish Kabaj 13 hours ago

:' )

pentavalentcarbon

> the community has a pretty positive environment

I disagree

Avnish Kabaj

13:10

3 pipil agree

pentavalentcarbon

well I agree with the first part of your statement, so there's that

Abcd

> Nice

orthocresol

13:26

I'm actually surprised that thing hit −8. I don't think it's a solution that would help at all, but I think it's true that there is generally quite a lot of negativity.

Avnish Kabaj

Good for me that comments can't be downvoted

Then

orthocresol

The main problem I have with that post is that "positivity"/"negativity" is too vague and unspecific. A meta post consisting of regular users praising one another is not going to help with the rather snarky comments directed at newcomers every day. In other words, it's a feel-good solution.

2

@JavaScriptCoder ^

pentavalentcarbon

13:41

Gaurang Tandon

14:14

Honestly, I find those -8 votes surprisingly quick. Seems like (sadly) @JavascriptCoder's meta post just hit the HNQ...

pentavalentcarbon

15:19

hm

9

Q: Survey of users to judge quality and culture of an SE site

Without getting into specifics, I've noticed an extreme difference in the overall experience of a number of different Stack Exchange communities of which I am a member. Likewise I have personally experienced what I felt was a decline in quality and/or culture of some SE sites that I have been a m...

discussion feature-request quality culture

maybe this is the real solution (taken from here)

> Stop answering questions in the comments section you absolute bastards!

or here

-15

Q: Why do people from other places understand the questions better than people in the StackExchange communities?

Why do people in the Stack Exchange communities have difficulty putting common sense to the questions? and why this does not usually happen in other communities like Reddit or Linuxquestions? just for putting a couple of examples. If your rating to this question is negative, what is your reason?

discussion comments questions

Gaurang Tandon

@pentavalentcarbon maybe I'm dumb, but I have absolutely no clue why people do that. They even miss out on the repz received when posting an answer!

pentavalentcarbon

15:34

I know why. It's because they think the question is bad, and if it gets an answer, it will be harder for roomba to come by and nuke it without manual intervention.

Gaurang Tandon

Well, if they find the question to be "bad" (below their education, not worthy of receiving an answer by them), ideally they should just ignore it and move on. Answering in comments is a half hearted attempt that not only gives the OP an incomplete, confusing answer, but also borders on misusing the 600char freedom suppose to ask for suggestions.

Or if they really are adamant to see it roombaed, they should just downvote it

pentavalentcarbon

you don't need to tell me that

Gaurang Tandon

Ofc, I know. I was addressing it at the users who often tend to answer in comments

pentavalentcarbon

people who never come into chat...

orthocresol

and me

Gaurang Tandon

15:42

Questions answered in the comments appear to be trivial, and sometimes the slightly decent questions get closed as "homework" due to this

@pentavalentcarbon this should be embossed into the background of every SE site's homepage

@pentavalentcarbon true..

pentavalentcarbon

Understandable, there's no need to chat.

accordingly there are few of us

Gaurang Tandon

Right

pentavalentcarbon

"and me" doesn't bait unsuspecting OPs...

Secret

cen.acs.org/articles/94/i13/…

Gaurang Tandon

@pentavalentcarbon I miss the context for this "and me"? :/ was there a meta post?

orthocresol

15:46

He's saying I don't bait unsuspecting OPs.

Gaurang Tandon

What does that phrase mean? Baiting OPs to do what?

pentavalentcarbon

With an "an incomplete, confusing answer", some snark, or both.

Gaurang Tandon

Oh, ok, understood

obackhouse

@pentavalentcarbon have you had much experience with multipole expansions?

you are usually my go-to guy for questions ^^

pentavalentcarbon

yes, but if you mean something like implementing FMM/CFMM, no

that would be a fun project

obackhouse

16:00

0

Q: Accuracy benchmarks for atomic multipole moments

Thermochemical accuracy is regularly quoted as 1 kcal mol$^{-1}$, or 4.2 kJ mol$^{-1}$. I'm expressing some data and I want to use benchmarks like this to validate them, however, they are not all in units of energy. My analyses involve various ranks of a multipole expansion. I have found a refer...

quantum-chemistry electronic-configuration theoretical-chemistry dipole

not an implementation question

but yeah FMM is cool... but I heard it's not really useful for small systems

pentavalentcarbon

Correct, things like FMM and LinK are not useful for anything except large, spatially-extended systems because of the cost of screening

As for your question, that is interesting...

obackhouse

Yeah I always figured that I wouldn't be able to run calculations for systems that are so large with my own code, as they'd be slow

so no point in spending time

pentavalentcarbon

I see value in it from a pedagogical point of view, so you understand why linear scaling algorithms are quite slow, and there are very few implementations

FMM is on my long list of things to try someday

obackhouse

too busy writing my dissertation atm to do side stuff

pentavalentcarbon

ya, I didn't get much else done when I was writing mine

I can't guarantee anything, but I can look.

Part of the problem is that I don't know what to benchmark against, because I don't know what the experiment is, but I might have a book with experimental references

Some things that are easy to calculate are notoriously difficult to experimentally measure accurately or at all

obackhouse

16:10

I've built a predictive model which analyses whether certain properties are transferable between different sized clusters

water clusters that is

pentavalentcarbon

!

obackhouse

if that makes any sense

pentavalentcarbon

I think so

obackhouse

it's nothing complex but it has its place in the larger project of the group I worked in - basically trying to report the accuracy of the model

so for energy properties, if the RMSD is < 1 kJ/mol then they're predicted well (hint: they're not)

So I need a similar measure for multipoles

pentavalentcarbon

So it's similar to a convergence study?

obackhouse

16:13

Yeah pretty much

pentavalentcarbon

> Experimental values were taken from refs 22 and 23. As experimental data are most reliable and widely available for molecular dipole moments, we only report benchmarks of these moments, although quadrupole and higher moments can also be computed

Ok, I found some good stuff I'll try and write up.

obackhouse

16:30

ah sweet, thanks

Avnish Kabaj

17:02

Five more days and I get fanatic

I have this irrational fear that I might not make it

Like forget to login on the 99th day

Mithoron

17:15

@AvnishKabaj Then you could get it few months later.

CowperKettle

17:28

Is "Streptavidin labeled with horseradish peroxidase" the same as "HRP-conjugated streptavidin"?

Is 'labeled' the same as 'conjugated'?

Mithoron

17:39

I feel I'm fed up with SE ;/

Pritt Balagopal

Hello @CowperKettle welcome back :)

Havent seen you in chat for a while

orthocresol

@Mithoron question quality, or something else?

CowperKettle

@PrittBalagopal Subh Ratri!

Cheers from Russia

The bicycling season has just started here

The snow has almost melted away

(0:

Jogging in Russia.

This is part of the worldwide ParkRun movement ))

I registered on their website and joined in

I finished at place 9, out of 21 participants (0:

Mithoron

18:19

@orthocresol I guess mostly question quality

Mithoron

18:33

Though I think that reading a bit of last meta activity and related chat transcript... sigh...

M.A.R. ಠ_ಠ

18:49

@Mithoron you don't need to be here everyday

If it feels boring or disappointing, just take a break

And come back when you miss my nonhumor humor

And @ortho's humour

Which is really, "hiyumaaaaaa"

M.A.R. ಠ_ಠ

19:19

I can't see images either because it's blocked in Iran. What ortho said. Trying using a VPN instead. — M.A.R. ಠ_ಠ 21 hours ago

Ugh, someone please edit that auto carrot mischief

@Martin-マーチン I think that's partly because many folks (including myself) checkout new questions from the CV queue first, and then from the front page, and do not open the ones they've already VTCed in the CV queue. The lack of downvote buttons in the CV review queue is possibly the reason why they don't get downvoted enough. — Gaurang Tandon 8 hours ago

@Gau's spot on

Just this once

orthocresol

I can't see images either because it's blocked in Iran. What ortho said. Tryed using a VPN instead. — M.A.R. ಠ_ಠ 21 hours ago

Is this better?

M.A.R. ಠ_ಠ

I will hunt you with a sniper rifle in a badass way. And in mating season so it'd be illegal

@GaurangTandon Hated Network Questions, right

2

@pentavalentcarbon why do you judge their name?

M.A.R. ಠ_ಠ

20:02

@NickAlexeev nope, would be closed still, because the answer is either "yes, you're right" or "no, and your handwriting sucks"

@JavaScriptCoder well, there is some unwanted negativity, but it's almost always in the form of comments, not in the form of downvotes to well-thought and well-researched posts

I have an idea: An event where you shame and throw snarky remarks at someone so they improve their future posts

This will definitely help site content

I choose you, @ortho

Pritt Balagopal

20:22

@CowperKettle Wow nice to see the snow melting! As much as snow is pretty, it really does get in the way most of the times. Also I really want to eat that cupcake, argh.

orthocresol

@M.A.R.ಠ_ಠ people with less than 7k rep have no business talking to me

2

> How is the molecular orbital diagram of the SO molecule?
> It's fine, thank you.

7

M.A.R. ಠ_ಠ

@PrittBalagopal try biting the screen

@orthocresol elitist

pentavalentcarbon

I should star that

orthocresol

21:09

I hope you weren't talking to me, because you shouldn't be.

On a more serious note, I am getting fed up of flagging all of Uncle Al's answers as NAA.

> "in excess of 2000 litres of water... per gram of dessicant [sic]."
> 1) What is the volume of one gram of desiccant?
> 2) What is the volume of 2000 liters of water?
> 3) What is the cognitive dissonance?

Who needs the comment box for snarky NAAs when you can simply post a snarky NAA as an answer?

pentavalentcarbon

I thought I was only elitist in real life, not on the internet!

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