The "end point" is the measured volume of solution that yields a change in appearance, usually int he form of a change in an indicator. a. analyte b. titrant c. precipitate d. solute

A- Analyte

The end point is the measured volume of analyte solution that yields a change in apperance,usually in the form of change of color in an indicator. A titrant is added to this analyte in order to arrive at the equivalence point,(where the concentration of H+ ions is equal to the concentration of OH- ions) and determine the concentration of the analyte. The end point is an indication that the equivalence point has been achieved.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.