Conductivity: Pure Water + NaCl

In these short videos, Dr. David Hobbs demonstrates the conductive properties of water. Conductivity refers to the amount of dissolved solids present in an aqueous solution, allowing it to conduct electricity.

In this first video, Dr. Hobbs observes changes in conductivity when salt (sodium chloride, NaCl) is added to pure, or deionized, water.

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The MSP project is funded by an ESEA, Title II Part B Mathematics and Science Partnership Grant through the Montana Office of Public Instruction. MSP was developed by the Clark Fork Watershed Education Program and faculty from Montana Tech of The University of Montana and Montana State University, with support from other Montana University System Faculty.