A mercury manometer is used to measure the amount of gas confined in a tube if the mercury in the branch connected to the tube is higher = 2.5 cm than the surface of the mercury in the open orifice, considering the density of mercury 13.6 g /cm3. 1) What is the pressure of the gas confined to the tube? 2) If mercury is replaced by glycerin, which has a density of 1.25 g /cm?, what is the difference between the two surface levels of glycerol in the two The two branches? 2.50cm mercury glycerin