Reaction of Zinc and Hydrochloric acid
In this video, we'll be exploring the reaction between zinc metal and hydrochloric acid. The equation for this reaction is Zn + HCl → ZnCl2 + H2. As the reaction proceeds, you'll notice bubbles forming, which is hydrogen gas (H2) being released. We can capture these bubbles and test them by lighting a flame to see the characteristic pop sound of burning hydrogen gas.
In the reaction, zinc chloride, which is one of the products of the reaction, stays dissolved in water. Zinc chloride is an aqueous solution that remains dissolved in water due to its water-soluble nature. This reaction is a classic example of a single replacement reaction, where a more reactive metal, in this case, zinc, replaces a less reactive metal, hydrogen.
Пікірлер: 42
thanks for all your "How to Write the Formula" vidoes, it really helps for my chemistry work and helps me understand how to write the formulas on my own
@wbreslyn
Жыл бұрын
You're very welcome!
Thank Dr. B! I'm having my chemistry exam today and video experiment will come in clutch.
@wbreslyn
Жыл бұрын
All the best on your exam tomorrow!
@fuzial4659
Жыл бұрын
If ur in 10th congratulations u just learned the most easy equation of the syllabus
@thiccboidexter2863
Жыл бұрын
@@fuzial4659 It's not about the equation, it's about the visual memory you get from the video😀
Great explanation, I love it!
@wbreslyn
Жыл бұрын
Excellent!
Thanks Dr.B! ❤
Awesome. Sir it is a huge request to make a brief video on a 3-electron bond(where we represent 3 electrons above a covalent bond like in the case of NO) which is somewhat mentioned in Linus Pauling's book.And if possible do consider the Singlet linkage theory
i appreciate the assignment answers
Hey!! Nice that your channel is expanding from just text to real reactions! Do more!!!!
@wbreslyn
Жыл бұрын
They are certainly more fun to create but take much, much longer. But I do hope to do more!
I am watching from Bangladesh.🇧🇩 Thanks for showing it so directly
@wbreslyn
Жыл бұрын
My pleasure 😊
Does Clemmensen reduction require amalgamation of zinc with mercury salt?
Thats sick Dr. B I'm a 8th graders and I love watching practicals
@wbreslyn
8 ай бұрын
Yeah, this was a fun one to do! Glad you enjoyed it too.
Awesome.
@wbreslyn
Жыл бұрын
Thanks!
Thanks Dr. B!😊 I got a B+ because of you :)
@wbreslyn
Жыл бұрын
Excellent!
👍🏻 nice! So if i check a solubility table , i should see that H an Cl are soluble in in H2O?
@wbreslyn
Жыл бұрын
I don't think you'll find H+ on the solubility table but Cl- is there. Since HCl is a strong acid it will dissociate completely in water so it is soluble.
@jasonlove8733
Жыл бұрын
@@wbreslyn so being a strong acid HCl must have a pH
@wbreslyn
Жыл бұрын
It really depends on the concentration. The HCl is used in the video was less than 1. But if you dilute it enough it could be anything below 7. Strong acid just means that it dissociates completely in water.
yo !!! nice expirement :D Dr B
@wbreslyn
Жыл бұрын
Hey, thanks!
How concentrated does the HCl need to be? I'm trying to get a piece of zinc stuck in my graphite crucible out and toilet bowl cleaner (9.5%) hardly moved it.
@wbreslyn
Жыл бұрын
In this video it's pretty concentrated. I actually used muriatic acid from home depot. But really, if you wait long enough I could expect the 9.5% to do it, just at a slower pace.
@ThePeterDislikeShow
Жыл бұрын
@@wbreslyn I left it overnight. By the way after I posted that I got it out. The HCl apparently ate the rim enough that I could (with great force) slide it out.
@ThePeterDislikeShow
Жыл бұрын
@@wbreslyn I melt pennies by the way to pour into various molds. It always leaves behind some stuff, mostly zinc oxides I would imagine and possibly the copper coatings which is probably why HCl hardly dented it.
@wbreslyn
Жыл бұрын
@@ThePeterDislikeShow Yeah, agreed, likely some coating slowing things down. I have used conc HCl to eat the Zinc outside of pennies. Very satisfying: kzread.infovJswbN5_O94
@ThePeterDislikeShow
Жыл бұрын
@@wbreslyn Is there a way to dissolve the copper but leave the zinc intact? I make zinc art and that would make the zinc melt a lot more cleanly.
What is the colour of ZnCl2 after reaction??
@wbreslyn
4 ай бұрын
It's soluble so it is dissolved in the water. So no color really.
I used as flux for iron soldering on aluminium
what was the PH of HCl ?
@wbreslyn
Жыл бұрын
I used concentrated in the watch glass and then in the flask it was about 6M. So fairly strong. But the reaction works with less concentrated solutions, just not as vigorous.
❤️❤️❤️
@wbreslyn
Жыл бұрын
Thanks!