0 Thists a Mixed question / It is worth!: nt / You have unlimited attempts / The

Question

0 Thists a Mixed question / It is worth!: nt / You have unlimited attempts / There is a 5% attempt penalty 09 Question point) 3 See page 454 asily inhaled and emits alpha particles whent Radon is a naturally occurring radioactive gas found in the ground and in building materials. It is decays. Cumulative radon exposure is a significant risk factor for lung cancer v 1st attempt Part1 (0.5 point) Feedback Calculate the density of radon at 289 K and 1.05 atm of pressure OL See Periodic Table Q See Hint 09,14 > Y OF 14 0UESTXINS COMPLETED

Explanation / Answer

Part 1.

Radon density

using,

density = pressure x molar mass/gas constant x temperature

with,

pressure = 1.05 atm

molar mass = 222 g/mol

Temperature = 298 K

So,

Density of Radon = 1.05 x 222/0.08205 x 298 = 9.53 g/L

Part 2.

NO + O3 ---> NO2 + O2

moles of NO = 1.30 mol

moles of O3 = 1.30 mol

Total moles = 2.60 mol

Total pressure = nRT/V

R = gas constant

T = 311 K

R = gas constant

V = 18 L

So,

total pressure P(total) = 2.60 x 0.08205 x 311/18 = 3.686 atm

Partial pressure of NO2 [P(NO2)] = 1.30 mol x 3.686 atm = 4.792 atm

Partial pressure of O2 [P(O2)] = 1.30 mol x 3.686 atm = 4.792 atm

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