Atitration involves adding a reactant of known quantity to a solution of an another reactant while monitoring the equilibrium concentrations. this allows one to determine the concentration of the second reactant. the equation for the reaction of a generic weak acid ha with a strong base is ha(aq)+oh−(aq)→a−(aq)+h2o(l)

High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?