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Lowell Thomson @ThomsonScience Some students today mentioned that you had commented on their blog posts. THANK YOU! I hope they respond to continue dialogue. 5 years 6 months ago Reply Retweet Favorite
Lowell Thomson @ThomsonScience Uh...methinks that I lost track of time. Epic fail on my part. Sorry! Maybe June...or focus on Asia next fall? 5 years 6 months ago Reply Retweet Favorite
Lowell Thomson @ThomsonScience RT : Teaching the history of chemistry at school http://t.co/AVJB9IET8u <--Interesting read. 5 years 6 months ago Reply Retweet Favorite
Lowell Thomson @ThomsonScience RT : Hey and friends! Do you follow yet? Follow now to stay informed about the new org!! 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma THERES A SUCH A THING AS A JEWELRY TEACHER!?! 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma Got to hear about pathway to gold at the chem Olympiad in Moscow last night. http://t.co/Vw5wM6U2Bh 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma great job last night! http://t.co/ZF2YODloRw 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma but so wasteful! Those silver atoms were expensive! 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma learning from mistakes just like "real scientists"!! Valuable (yet noxious) lesson to share :) 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma The local section of is sending TWO Ss to Air Force acdmy to vie for spot the national chem Olympiad team. 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma yeah, if we could've avoided the copper contamination would have been better. *sigh* HS Ss aren't analytical chemists 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma What do other ppl do with the AgCl ppt from the unit 8 lab? I don't want to trash it... 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma well, crappy %yield w a ton of residual copper in the product but relatively successful 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma ok, yes me too. Evap to dry, add water add NaCl. What do you think went wrong? I've been successful for 4+yes 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma also covered beaker w watch glass and released gas slowly. How much did you use 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma I also only did 4 at a time 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma I use about 10 mL of 6 M nitric. I had to warm it gently on a hot plate under the hood. AgNO3 isn't a ppt. Did you mean AgCl 5 years 6 months ago Reply Retweet Favorite
ACS ChemClubs @ACSChemClubs That's a really cool video! I haven't seen that one before. Now I need some & water colors 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma I use this lab 5 years 6 months ago Reply Retweet Favorite
Erica Posthuma @eposthuma . this is what inspired the ferrofluid Q. Watched in class today! Fabian Oefner: Psychedelic science http://t.co/vhViaq5dRC 5 years 6 months ago Reply Retweet Favorite