But... Won't aluminum react with hydrochloric acid anyway? You should have done this in two separate beakers to show if there really is a kinetic difference when copper is added. And this could be explained by the fact that copper II ions are a stronger oxidizer than H+ ions. The reaction you get is way more exothermic, and gets accelerated by it's own heat.
Yes Aluminum does react with HCl. But it takes a while because the dissolving of the oxide layer is slow. When it does get going though the rate of reaction is probably on par to what you saw here.
This demonstration shows that the addition of copper results in the immediate destruction of aforementioned oxide layor
Ah, what I was showing in my old dissolving aluminum reaction, but I used NaCl instead of HCl. The really fine copper produced it pretty cool huh? Have you seen woelen's write up on this?
We did this in chemistry like 2 days ago! lol
eseberre1 6 months ago
On the alluminium there is a a cover of Pure Copper? Isn't it?
MrAcidoBasico 11 months ago
But... Won't aluminum react with hydrochloric acid anyway? You should have done this in two separate beakers to show if there really is a kinetic difference when copper is added. And this could be explained by the fact that copper II ions are a stronger oxidizer than H+ ions. The reaction you get is way more exothermic, and gets accelerated by it's own heat.
piranha031091 11 months ago
@piranha031091
Yes Aluminum does react with HCl. But it takes a while because the dissolving of the oxide layer is slow. When it does get going though the rate of reaction is probably on par to what you saw here.
This demonstration shows that the addition of copper results in the immediate destruction of aforementioned oxide layor
mewrox99 11 months ago
Ah, what I was showing in my old dissolving aluminum reaction, but I used NaCl instead of HCl. The really fine copper produced it pretty cool huh? Have you seen woelen's write up on this?
hkparker 11 months ago
@hkparker
yeah. Woelen's site is brilliant
mewrox99 11 months ago
@mewrox99 No kidding!
hkparker 11 months ago
What molarity did the HCl have more or less?
Kendrana 11 months ago