Chemist testing the pH of a solution-9941
Rate this image
![](https://stockarch.com/files/imagecache/Preview/20/04/acid_test_0.jpg)
Image Description:
Chemist testing the pH of a solution using litmus paper which has changed to red for an acid
Keywords:
chemistry, chemist, acid, experiment, liquid, reaction, sample, substance, acidity, chemical, ph, science, testing, glassware, education License:
![Creative Commons License](http://i.creativecommons.org/l/by/3.0/80x15.png)
or accept license and edit with pixlr