A mercury barometer is a closed tube filled with mercury inverted in a mercury reservoir. An aneroid barometer consists of an evacuated container with a flexible wall. When atmospheric pressure changes, the wall flexes and moves a pointer which indicates the changing pressure on a scale. Compare with acid dissociation constant . The equilibrium constant for the hydrolysis reaction associated with a base.
Base units are units that are fundamental building blocks in a system of measurement.
There are seven base units in the SI system. Compare with acid . A mathematical function that can be used to build a description of wavefunctions for electrons in atoms or molecules. A set of mathematical functions that are combined to approximate the wavefunctions for electrons in atoms and molecules. A solution of approximately 6M sulfuric acid used in the lead storage battery.