Question

0 the build up of excess Coargs in the air of a submerged submarine is prevented by reacting the Cos with sodium Peroxide as shown. 2 Mag Oncs + 2002 - 2 Mag COB(s) + Only) Calculate the amount of sodium Peroxide needed in 24,0 br period Per Submariner if each exhakes 240mL con per minute at 210 and 775.2 mutty. e Calculate the volume of oxygen over the same time period.

Answer 1

2 NOZ O2 152 + 2C02099 -> 2NA, CO3 + 02(9) for 1 minute V=2uome o .zulit P = 775.2 mming atm 775.2 760 T= zic :) 21+ 273.15 - 294.15 K ncoa = P 775.27760 x 0.24 0.0821 x 294.75 nam = 0.010136 mol for 1 hour nco - 6.01013 6X60) for 24 hour nco, =(0.01013x60X24) nco, = 14.5969425 mol NqOz - nco2 = n nazoz = 14.5969 mol Molar Mass of Na2O2 = 2(23) + 2016) = 78gmimo) 2 Wnazoz = (14.5969*78) gm WN OO2 = 1138-27gm /

(6) for for for 2u har 1 minute Vcoz = 0.24 zil I hour Voz =(0.24 x 60) cit vca = (0.24 x 60 x 24) Lit Vcom = 346.6 lit Ucuz = Voz e Voz = 3466 Vo = 172-8 lit leve 1 Now