pH and pOH: Crash Course Chemistry #30
Why the open web links it
Explains pH and pOH, acids and bases, and related chemistry concepts in an accessible and educational way.
Linked by 9 independent sites, 4 of them widely read in the 2026-10 crawl of the open web, including oup.com, cuny.edu, lumenlearning.com, truman.edu, codekodo.net.