Supersaturated Solutions - Working with Sodium Acetate 

I’m so glad you enjoyed it, Aishwarya! I’ll be making more soon.

Yes, it should work. Great question!

❤

Yes dude😮

I just found out about it at mall of america. The wonder pax. Works amazing

Salaam to you because U R a teacher.

Hello Dr. Debajiit Chakrbarty, you are welcome to use my video for instruction. If you would credit my channel, that would be great!

Thank you so much respected sir for your love and support I am add your channel name and credit in my description box. Again thank you so much sir

Glad it was helpful. All the best on your studies in chemistry!

Glad you enjoyed it

Hi Sean, (1) This does have characteristics of a chemical reaction. Although crystallization of a solid from a solution is a physical change, we are also forming an ionic bond (chemical bond) between the ions of sodium and acetate. So we can make a case that this is a chemical reaction, while we can also make a case that it is a physical change. Neither would be incorrect, chemically speaking. (2) Not truly a phase change. We are going from an aqueous mixture (specifically, an ionic solid dissolved in water) to a solid with a little water present. (3) Definitely separating a mixture. The aqueous mixture contains sodium acetate and water, while the 'crystallized' version contains solid sodium acetate with a little liquid water.

In this demo, I used safety goggles and a lab coat/apron, as I do in all my demos. Sodium acetate is not especially corrosive, so gloves are not really necessary for this demo, although if someone wanted to use them, that would be fine. In my many years of experience, using gloves when they aren't really necessary leads to (1) excess waste of polymers/plastics, and (2) more risk of slippage between your hands and the glass beaker -- esp in the case of reusable gloves -- which increases the risk of dropping the beaker and having an accident. As always, if you touch the 'seed crystal' with your fingers, wash your hands afterwards. Thanks for watching!

Glad you liked. Thanks for watching!

I actually used the exact same solution for both parts of the video. Great question!

I'm so happy they like it! Tell them hello for me!

A couple of tips... Make sure you're using distilled water. Tap water has enough impurities that this likely won't work unless you use distilled water. Also, make sure that your beaker is very clean. A dirty beaker might have impurities that could dissolve into the water and keep your solution from getting to the supersaturated point. Just a couple of thoughts. Best wishes on your science project!

So glad you enjoyed it!

You can use tap water, but due to the impurities in tap water, you might not be able to dissolve the full amount. This is why I recommend distilled water.

You're welcome. It was fun to set this up!

5:42 Anything's a dildo if you're brave enough

Prog

Prog -> pog