questions:ph-testing
questions:ph-testing


Author Comment Last activity Moderation
liz "Here's the link to the article mentioned above: http://www.labmanager.com/lab-product/2010/10/evolution-of-the-ph-meter#.Wcl9xUqGP-k " | Read more » over 6 years ago
liz "I found this webpage that describes how to use either red cabbage, turmeric, radish, or elderberry to make a quick and short term color change test..." | Read more » over 6 years ago
gilbert "Arnaldus de Villa Nova around the year 1300 is credited with developing a litmus test for pH, (Chemical Education Digital Library), utilizing a blu..." | Read more » over 6 years ago