SCH 3U DATA SHEET Activity Series of Metals Metal lithium most reactive potassium barium calcium sodium magnesium aluminum zinc chromium iron cadmium cobalt nickel tin lead hydrogen copper mercury silver platinum gold least reactive Displaces Hydrogen From cold water Gas Data R Molar volume STP Molar volume SATP STP SATP Value 8.314 kPa · L/mol · K 22.4 L/mol 24.8 L/mol T = 0 ºC or 273.15 K P = 101.325 kPa T = 25 ºC or 298.15 K P = 100.000 kPa Solubility Rules Partial Pressures of Water Vapour at Different Temperatures Temperature Pressure (oC) (kPa) 15 1.71 16 1.81 17 1.93 18 2.07 19 2.20 20 2.33 21 2.49 22 2.65 23 2.81 24 2.99 25 3.17 26 3.36 27 3.56 28 3.78