We know that Hydrochloric Acid + Zinc makes Hydrogen gas.
But, I don't know.
What concentration of acid should I use?
High school lab project.
I need to produce a fair amount of hydrogen...not too much. Enough to fill an emu egg.
I have 12M HCl at my disposal..but I don't want to use something so concentrated. I'm just trying to think what a good, safe concentration would be. I can easily dilute it down to whatever I need...but...
I am not worried about the method, steps or equations of arriving at this conclusion, but a general understanding of what you are thinking is great I obviously would like to learn about your conclusions...but pushing my through equations isn't truly necessary.