A calibration equation is stored on each pH Sensor before it is shipped. For the most accurate measurements with this sensor, we recommend you perform your own 2-point calibration with buffer solutions.
As the pH Sensor ages, the performance of the ...
pH is a quantitative unit of measure that describes the degree of acidity or alkalinity of a substance. It is measured on a scale of 0 to 14. The formal definition of pH is the negative logarithm of the hydrogen ion concentration (i.e., pH = –log...
Video analysis experiments have strong potential to reinforce student learning and build intuition; however, in the intro physics lab, students often find experimental values that are substantially different from the expected results (e.g., a curve-f...
Our award-winning lab books are now available as eco-friendly electronic downloads in addition to the traditional print format.
When you purchase the electronic version of a lab book, you receive
Access to the most up-to-date versions of experime...
Wired or wireless—you have the flexibility to choose. Our Go Direct sensors connect directly to Chromebooks, mobile devices, or computers. With both USB and wireless connectivity, you have the freedom to connect to a wide variety of platforms. That...
Understanding enzyme action is a fundamental concept in biology. The “Testing Catalase Activity” investigation in our Investigating Biology through Inquiry book is a very popular activity for investigating enzyme action. Our O2&nb...