This video demonstrates the proper use of an electronic balance. This activity is included in Biotechnology: A Laboratory Skills Course, ... ... <看更多>

A chemistry lab video by Rob Kovacich at Columbia Gorge Community College. ... <看更多>

Use of Electronic Balance and Weighing Substances. chemistry edb. chemistry edb. 6.99K subscribers. Subscribe. Like. I like this. ... <看更多>

For more information, visit http://www.bio-rad.com/yt/11/biotech-lab-textbook.This video demonstrates the proper use of an electronic ... ... <看更多>