WEBVTT 00:00:00.000 --> 00:00:02.140 align:middle line:84% PHIL: One person is going to win, and they can choose to 00:00:02.140 --> 00:00:03.840 align:middle line:84% bring along somebody of their choice. 00:00:03.840 --> 00:00:38.914 align:middle line:90% [MUSIC PLAYING] 00:00:38.914 --> 00:00:43.140 align:middle line:84% NARRATOR: Last time in 5.301, the students just practiced 00:00:43.140 --> 00:00:44.680 align:middle line:90% re-crystallization. 00:00:44.680 --> 00:00:46.510 align:middle line:84% Now it's time for the real thing. 00:00:46.510 --> 00:00:50.430 align:middle line:84% PROFESSOR: You're actually going to take your crystals, 00:00:50.430 --> 00:00:53.910 align:middle line:84% and you're going to re-crystallize them, to 00:00:53.910 --> 00:00:57.420 align:middle line:90% produce one big crystal. 00:00:57.420 --> 00:00:58.820 align:middle line:90% And there's a prize. 00:00:58.820 --> 00:01:05.010 align:middle line:84% Whoever gets this first is going to lunch with me at 00:01:05.010 --> 00:01:09.430 align:middle line:84% Legal Sea Foods, and you can bring one of your friends, and 00:01:09.430 --> 00:01:11.260 align:middle line:90% you can invite the TAs. 00:01:11.260 --> 00:01:15.170 align:middle line:84% NARRATOR: The goal is to grow a single, perfect, crystal. 00:01:15.170 --> 00:01:18.920 align:middle line:84% But first, the students have to actually make the compound 00:01:18.920 --> 00:01:21.300 align:middle line:84% they're going to grow their crystals from, 00:01:21.300 --> 00:01:24.320 align:middle line:90% this chromium complex. 00:01:24.320 --> 00:01:27.325 align:middle line:84% This is their first real reaction in the lab. 00:01:27.325 --> 00:01:30.555 align:middle line:90% 00:01:30.555 --> 00:01:33.160 align:middle line:84% ANTHONY: It's a different color and that's usually 00:01:33.160 --> 00:01:34.585 align:middle line:90% pretty good in chemistry. 00:01:34.585 --> 00:01:37.740 align:middle line:84% NARRATOR: After they filter, wash, and dry their product, 00:01:37.740 --> 00:01:41.350 align:middle line:84% the students begin testing solvents, and some start 00:01:41.350 --> 00:01:42.160 align:middle line:90% teaming up. 00:01:42.160 --> 00:01:45.542 align:middle line:84% PHIL: I actually saw an alliance forming over here. 00:01:45.542 --> 00:01:47.290 align:middle line:84% YI-SHIUAN: I saw some of them split up 00:01:47.290 --> 00:01:48.705 align:middle line:90% trying different solvents. 00:01:48.705 --> 00:01:52.390 align:middle line:84% We actually worked on find the solvents together. 00:01:52.390 --> 00:01:56.470 align:middle line:84% JULIE: We decided to use dichloromethane and hexane for 00:01:56.470 --> 00:01:57.330 align:middle line:90% our solvents. 00:01:57.330 --> 00:02:01.672 align:middle line:84% ANTHONY: We're going to use hexanes and methanol. 00:02:01.672 --> 00:02:01.758 align:middle line:90% Shh. 00:02:01.758 --> 00:02:04.590 align:middle line:90% We're going to win. 00:02:04.590 --> 00:02:06.400 align:middle line:84% NARRATOR: Hansol seems pretty driven. 00:02:06.400 --> 00:02:09.530 align:middle line:90% HANSOL: I like competition. 00:02:09.530 --> 00:02:11.130 align:middle line:90% I want to win, obviously. 00:02:11.130 --> 00:02:14.266 align:middle line:84% NARRATOR: If you win, who will you invite to lunch? 00:02:14.266 --> 00:02:17.580 align:middle line:84% HANSOL: I would probably pick Dan. 00:02:17.580 --> 00:02:18.795 align:middle line:84% I made a deal with him earlier. 00:02:18.795 --> 00:02:21.580 align:middle line:84% NARRATOR: So, Hansol's been working with Dan. 00:02:21.580 --> 00:02:22.585 align:middle line:90% What about you, Emily? 00:02:22.585 --> 00:02:25.840 align:middle line:84% EMILY: Yeah, I worked with Dan to figure out what solvent 00:02:25.840 --> 00:02:27.366 align:middle line:90% system would work well. 00:02:27.366 --> 00:02:29.290 align:middle line:90% NARRATOR: Uh, OK. 00:02:29.290 --> 00:02:30.435 align:middle line:90% Let's recap. 00:02:30.435 --> 00:02:31.200 align:middle line:90% HANSOL: Dan. 00:02:31.200 --> 00:02:31.860 align:middle line:90% EMILY: Dan. 00:02:31.860 --> 00:02:32.560 align:middle line:90% HANSOL: Dan. 00:02:32.560 --> 00:02:33.195 align:middle line:90% EMILY: Dan 00:02:33.195 --> 00:02:33.970 align:middle line:90% HANSOL: Dan. 00:02:33.970 --> 00:02:34.580 align:middle line:90% EMILY: Dan. 00:02:34.580 --> 00:02:36.100 align:middle line:84% NARRATOR: Dan, what do you have to say for yourself? 00:02:36.100 --> 00:02:38.870 align:middle line:84% DAN: It was a loosely formed alliance, we 00:02:38.870 --> 00:02:40.410 align:middle line:90% didn't sign any papers. 00:02:40.410 --> 00:02:43.820 align:middle line:84% NARRATOR: Ike meanwhile has a different idea. 00:02:43.820 --> 00:02:45.420 align:middle line:90% IKE: I'm broke. 00:02:45.420 --> 00:02:49.100 align:middle line:84% If I get the ticket I'm going to sell it for money. 00:02:49.100 --> 00:02:53.200 align:middle line:84% Because I know, these suckers want it really bad. 00:02:53.200 --> 00:02:54.880 align:middle line:90% PHIL: We have some people whose 00:02:54.880 --> 00:02:56.390 align:middle line:90% samples look pretty good. 00:02:56.390 --> 00:03:00.620 align:middle line:84% They seem to be wanting to try a lot of different solvent 00:03:00.620 --> 00:03:03.250 align:middle line:84% systems, a lot of different temperatures. 00:03:03.250 --> 00:03:04.600 align:middle line:84% They're asking a lot of questions. 00:03:04.600 --> 00:03:06.710 align:middle line:84% They want to make sure that everything is perfect. 00:03:06.710 --> 00:03:09.900 align:middle line:84% Because I think everyone wants to get the biggest crystal. 00:03:09.900 --> 00:03:11.330 align:middle line:90% They're very determined. 00:03:11.330 --> 00:03:12.690 align:middle line:84% They're going for all or nothing. 00:03:12.690 --> 00:03:15.310 align:middle line:84% They don't want a bunch of small crystals. 00:03:15.310 --> 00:03:18.080 align:middle line:84% LINA: Next week, we're going to win the biggest crystal 00:03:18.080 --> 00:03:19.150 align:middle line:90% competition. 00:03:19.150 --> 00:03:20.955 align:middle line:84% Because the winners get to take the TAs and Professor 00:03:20.955 --> 00:03:23.130 align:middle line:90% Dolhun out to lunch. 00:03:23.130 --> 00:03:24.785 align:middle line:84% JULIE: Legal Sea Foods, for free. 00:03:24.785 --> 00:03:26.380 align:middle line:90% NARRATOR: So that's it. 00:03:26.380 --> 00:03:28.130 align:middle line:90% Everything's set and everyone's 00:03:28.130 --> 00:03:30.080 align:middle line:90% excited about the prize. 00:03:30.080 --> 00:03:32.000 align:middle line:90% But, who will win? 00:03:32.000 --> 00:03:35.520 align:middle line:90% Find out next time on 5.301. 00:03:35.520 --> 00:03:39.714 align:middle line:90% JULIE: Yeah, we're done. 00:03:39.714 --> 00:03:41.816 align:middle line:84% PHIL: I'm having this re-occurring dream. 00:03:41.816 --> 00:03:44.790 align:middle line:84% It's like I'm jogging through a park with a 00:03:44.790 --> 00:03:45.320 align:middle line:90% fitness boot camp. 00:03:45.320 --> 00:03:47.950 align:middle line:84% And I stop to talk to Kris Jenner. 00:03:47.950 --> 00:03:50.857 align:middle line:84% And I always say, no, no, no, Kris, I can't talk 00:03:50.857 --> 00:03:52.770 align:middle line:90% to you right now. 00:03:52.770 --> 00:03:55.590 align:middle line:90% And she pours Kool-Aid on me. 00:03:55.590 --> 00:03:58.360 align:middle line:84% And I wake up drenched in Kool-Aid. 00:03:58.360 --> 00:03:59.020 align:middle line:90% That's a dream. 00:03:59.020 --> 00:04:02.350 align:middle line:84% If it was Bruce Jenner pouring Kool-Aid on me, that would be 00:04:02.350 --> 00:04:02.650 align:middle line:90% a nightmare. 00:04:02.650 --> 00:04:09.259 align:middle line:90% [MUSIC PLAYING]