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Instant Hot Ice

Hits: 100625 | Rating: (3.7) | Category: Science | Added by: kendrickwall
Page: 13 4 5 6 Next >   Jump to: Bottom    Last Post
krusty2514
Male, 70 & Over, Southern US
 183 Posts
Wednesday, June 06, 2007 6:25:20 PM
Phoneix you cant improvise by figuring out the proportion like you said you did. First you must have an 8%. Percent concentration does not have anything to do with proprtionality because for teh reaction to occur it should proably be 8 percent.If you are making your own acetate then you know that for the reaction to proceed forward and be exothermic, its got to be 8 percent

They were wrong in the video. In exothermic reactions, heat LEAVES hence the exo part of exothermic.

TO get to 8 percent here is an easy way if you have some kind of knolwedge of chemistry

here is the math formula for it for easy computation

(molarity1)(Volume1)=(molarity2)(volume2)

so for M1 you would put 5 percent Volume 1 you put whatever volume you think is good for you. Molarity 2 you put 8 percent Volume 2 you put an X because you are solving for it.

Use math to find out how much volume must evoporate to get an 8 percent solution. Ask if you need help.


Qpax
Male, 18-29, Europe
 2340 Posts
Wednesday, June 06, 2007 2:48:14 PM
Ah, it's a chemical reaction that makes the water give out heat. That would explain it quite nicely.

philippic
Male, 18-29, Europe
 1704 Posts
Wednesday, June 06, 2007 1:20:39 PM
quality!!!!!

klkl
Male, 13-17, Eastern US
 2175 Posts
Wednesday, June 06, 2007 12:47:32 PM
hmm...is it still eat the ice? idk if ud wanna i guess cause its warm...eww

nice tho


WTFGirl
Female, 13-17, Europe
 159 Posts
Wednesday, June 06, 2007 12:37:25 PM
...so...what would happen it you threw it at someone's face?

Yoeri
Male, 18-29, Europe
 378 Posts
Wednesday, June 06, 2007 12:06:34 PM
Can anyone please please please, tell me what the music is for this little vid. I've been trying to locate it but without any luck....

PLEASE!


B3XYS4b3LL
Female, 13-17, Australia
 14 Posts
Wednesday, June 06, 2007 8:08:14 AM
was it just me or did the sculpture @ the end look like a pee-nis?

KimonoThief
Male, 18-29, Western US
 127 Posts
Wednesday, June 06, 2007 12:38:18 AM
"Shame on all you who said it was supercooled"

It IS supercooled. The melting point of sodium acetate is 58 °C. Since room temperature is roughly 23 °C, it should be a solid, but it remains in its liquid form.


brittany777
Female, 13-17, Eastern US
 513 Posts
Tuesday, June 05, 2007 11:39:43 PM
how else can u make that kind of sodium?

ThePhoenix88
Male, 18-29, Eastern US
 6 Posts
Tuesday, June 05, 2007 11:38:45 PM
I made sodium acetate using vinegar and baking soda. I only had 5% concentrated vinger so I figured out the proportion so it would be like 8%. The baking soda was old cause it was use in the fridge. Anway I got the acetate made but it was a little on the brown side. I brought some water to about boiling temp (190 F) and added quite a bit of acetate. I put it in a pyrex mesauring cup and put it in the fridge for a good 40 minutes. The acetate just settled on the bottom and some was suspended in the water but it didn't do anything. Can someone tell me how to do it right and if the impurties in the baking soda would have caused in to wrong?

GrereX1
Male, 13-17, Canada
 1022 Posts
Tuesday, June 05, 2007 11:20:12 PM
Wow where can i buy this!

Blakcat71388
Female, 18-29, Eastern US
 879 Posts
Tuesday, June 05, 2007 11:20:11 PM
That was really cool. So much potential.....

dilldog123
Male, 18-29, Midwest US
 2124 Posts
Tuesday, June 05, 2007 11:10:53 PM
wowzers!!!!

mts2457
Female, 18-29, Midwest US
 540 Posts
Tuesday, June 05, 2007 10:43:34 PM
No, ENDOthermic would mean it gets warm. Dummies.

crazydaiz
Female, 18-29, Western US
 243 Posts
Tuesday, June 05, 2007 10:31:23 PM
for a second, i was absolutely sure he was about to sculpt a penus.

thank god for scientific maturity?


runeguy37
Male, 13-17, Eastern US
 135 Posts
Tuesday, June 05, 2007 10:04:19 PM
Thats not the only way of getting sodium acetate its just the first example I could think of.

runeguy37
Male, 13-17, Eastern US
 135 Posts
Tuesday, June 05, 2007 10:03:37 PM
Sodium Chloride, NaCl, is salt.

Sodium Acetate NaC2H3O2 is a component of the fizz made when you mix baking soda and vinegar together.


brittany777
Female, 13-17, Eastern US
 513 Posts
Tuesday, June 05, 2007 9:31:03 PM
ist sodium ..salt?

screwphysics
Male, 13-17, Eastern US
 13 Posts
Tuesday, June 05, 2007 9:02:10 PM
hahaha you could be iceman! from xmen thats how they froze the pond in the last stand moviei threw this at my friend and he said holy sh*t howd you do that and i said i was the iceman............ i love chem and screwphysics

nicole_xo
Female, 13-17, Eastern US
 2564 Posts
Tuesday, June 05, 2007 8:21:33 PM
OOH! I want to try it.

JAK-STEEL
Male, 13-17, Eastern US
 1644 Posts
Tuesday, June 05, 2007 7:50:28 PM
neato

dts_15609
Male, 18-29, Western US
 31 Posts
Tuesday, June 05, 2007 7:11:43 PM
That is so cool

i am going to try now


AK-047
Male, 13-17, Canada
 502 Posts
Tuesday, June 05, 2007 6:53:12 PM
I have heat packs full of those, so warm when you activate it. Good for warming up during skiing.

pea_ooter
Male, 13-17, Canada
 1005 Posts
Tuesday, June 05, 2007 6:43:29 PM
AFTERSHOCK: "THAT'S JUST WAY AWESOME!!! I'M GONNA MAKE A WHOLE SH'TLOAD OF IT AND POUR IT ON A SUPERSOAKER!!! I WONDER WHAT'S GONNA HAPPEN WHEN I SOAK MY LITTLE SIS..."

FTW buddy!


pea_ooter
Male, 13-17, Canada
 1005 Posts
Tuesday, June 05, 2007 6:36:08 PM
and then their face is frozen! mwahahaha

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