Science Buddies: "Ask an Expert"

Hi, I need to know what the PH levels of chlorogenic acids are (specifically black coffee).
My science fair is next week and i need to know.

Plz Help Immediatly

Thanks

purplecupcake76 - How have you researched this question so far? Is it part of your hypothesis? There are many references available that can easily assist. Rather than just give you an answer, Science Buddies wants to see your own effort up to this stage.

Rick Marz