Question

The first two problems are to be submitted today. 1.(25PTS) An astronaut 300 km above the surface of the earth records a temperature of 226.8°C. Calculate the average speed of molecular oxygen in m/s and mile/hr under these conditions. The formula for the average speed can be derived from the kinetic theory of gases and it is given by SRT average_speed=- (molar _mass) 2. (25PTS) Data: R=0.0821 L atm/(K mole)- 8.314 J/(K mole), Atomic mass 0-16,00 A reaction that can be used to inflate air bags is 2 NaNz(s) ----> 2 Na(s) + 3 N2(g) In a lab simulation, 15.3 mL of N2(g) were obtained at a pressure of 751 torr and 24.5°C. Assuming there were no side reactions, how many grams of NaNz(s) reacted? Data: Atomic masses: N = 14.01, Na =22.99 EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE================ on these problems today with your group.

Answer 1

but there are 2 moles of sodiumazides are there,

04fTemperalus = 2268+F3 = 491.8K R 8.314 Jlk.met 8-314 XID M Melar mase =3dl JEmate .avergage Speed SRT TTM &Xe.314 X10 4 99.8 3 1432 5.75 X10 cmSec 4 em sec S.5 x0 average spend aNars3N2 () NANS Valume 15.3ml P= 751 t 0.188 atm n- metes- masSS mtlar mass T 24.5 C+273 5 K PV RT n= PV PV -mass = RT RT mtar mass mass = 0.188 atmx15 3XID 65029Met 0-D821Katm mat H.a17.5 K 0-04 9 mass q NaN, Ttaetrd is 0040

hence mass = 2*.04= 0.08 g