What is pH scale?
Asked by surbhi | 6th Apr, 2013, 11:00: PM
Expert Answer:
A pH scale is a measure of how acidic or basic a substance is. The pH scale formally measures the activity of hydrogen ions in a substance or solution, which approximates the concentration of hydrogen ions under low concentrations.
Answered by | 7th Apr, 2013, 11:22: AM
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