# Chemistry: O2 gas production

by starry_eyes
Tags: chemistry, production
 P: 1 Data: O2 gas production Trial 1 Trial 2 Mass of tube and contents prior to O2 production (g) 24.5196 g 24.4328 g Mass of tube and contents after O2 production (g) 24.4315 g 24.3513 g Mass of O2 generated (g) 0.0881 g 0.0815 g Moles of O2 generated (mol) 0.00275 mol 0.00255 mol Temperature of H2O (C) 23 O C 23 O C Barometric Pressure (mmHg) 621.5 mmHg 621.5 mmHg Vapor Pressure of H2O (mmHg) 21.1 mm Hg 21.1 mm Hg Partial Pressure of O2 (mmHg) 600.4 mm Hg 600.4 mm Hg Volume of O2 at RT&Pressure 70.5 77.8 Volume of O2 at STP Volume of 1 mole of O2 at STP The items in red is what im having problems with I figured everything else out I just need help getting started on how to find the volume of O2 at STP and the Volume of 1 mole of O2 at STP
 Emeritus Sci Advisor PF Gold P: 11,154 Use the ideal gas relation in either of the following forms: $$\frac {P_1V_1}{T_1} = \frac {P_2V_2}{T_2}$$ OR $$PV = nRT$$

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