Acid vs. Base: The Color-Changing Experiment!

How does chemistry turn this liquid from clear to deep magenta? The liquid in the beaker is phenolphthalein, a chemical indicator that changes colors when exposed to a high pH. In this experiment, the phenolphthalein is combined with a small drop of ammonia, a strong base, causing it to change color. It then changes back to clear when it is combined with a drop of vinegar, an acid with a low pH, which balances the pH and neutralizes the base!

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[jmr]

Very informative! Shouldve worn a different blazer though as I have a hard time seeing the colors due to the red background

[francom]

Lol.. we've been so removed from "intelligence" that this simple trick was refreshing.. thank you. 💯

[DocSmart-pu]

May I ask what is the solvent in this experiment and what is the ratio? How much volume & concentration of solvent to grams of phenolphthalein?

[williamthethespian]

Let's see, red wine with beef, right? Not tonight, thanks.

[abecoulter]

And yet they put it in your coke zero as an alternative sweetener

[CajunReaper]

Definitely different seeing a chemist or scientist with tattoos!

[RoseTheLoser]

I wanna drink it but i’ll die :( and I don’t even like wine