« first day (176 days earlier)      last day (381 days later) » 

user84215
03:34
4 messages moved from Math Workshops
10:50
can I throw trash here?
 
2 hours later…
12:54
-2
Q: What is a chemical procedure that can be used to detect chromium 6 in water?

LaurenFor a chemistry assignment I have to describe a chemical procedure that is used to determine if water has chromium 6 in it. I've done loads of internet research and I feel like I'm coming up with nothing, so some help would be super appreciated. Thank you!

Anonymous
13:18
@MathematicsAminPhysics I suggest creating the event and writing a short post on Meta inviting interested users to join the event instead of spamming the main chat room by advertising it several times and inviting them from chat profiles. I have already received three invitations from you to join this chat room. I suppose you have invited several other users to join this room too from their chat profiles. If you continue doing this other users might get annoyed with you.
user84215
@Blue No user can invite a user more than one time to a specific room.
Anonymous
@MathematicsAminPhysics I already received three invitations from you. I can show you a screenshot if you wish.
user84215
@Blue They may be related to different rooms. Please try it. Can you invite me to a specific room more than one time?
Anonymous
You can invite more than once in case the user visits your room after the first invitation (which I did) and then leaves. After they leave you can invite them again. That's what happened with me.
-3
Q: Having difficulty with a dilution calculation

steven g"You want to make 10 mL of 0.02M NaCl in 0.1% SDS (sodium dodecyl sulfate). how would you make the stock solutions? Use C1*V2=C2*V2." How much 0.2M NaCl How much 1% SDS How much water I have no clue. Any help would be appreciated

Anonymous
13:27
Anonymous
1 st one
Anonymous
Anonymous
2nd one
Anonymous
To the same chat room.
Anonymous
I don't think I need to post a third picture to emphasize my point.
user84215
13:29
@Blue So please excuse me; I did not know it.
Anonymous
It's okay. I just wanted to say that spamming is not a good way to go about it. Write a short meta post inviting users to the event (state the time and details of the event). Those who are interested will join. I like the idea of the workshop but you need to implement it properly to make it work.
Anonymous
We do have events like AMA on the main chat which are pre-advertised on meta
Anonymous
That's the way to go
user84215
@Blue I think the mods do not allow me to do that. Anyway, thanks for your suggestion.

« first day (176 days earlier)      last day (381 days later) »