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Your answer is partially correct. Try again. Calculate the number density (numbe

ID: 2305458 • Letter: Y

Question

Your answer is partially correct. Try again. Calculate the number density (number per unit volume) for (a) molecules of oxygen gas at 0.0°C and 1.0 atm pressure and (b) conduction electrons in silver. (c) What is the ratio of the latter to the former? What is the average distance between (d) the oxygen molecules and (e) the conduction electrons, assuming this distance is the edge volume equal to the available volume per particle (molecule or electron)? length of a cube with a (a) Number T (b) Number Units Tm-3 4.58E-6 1.04E-8 This answer has no units (d) NumberTT2.23E-3 nm (e) Number L SEB 1.5E8 SHOW HINT

Explanation / Answer

a.
As pV = nRT
where n is the number of moles of gas at those p, V, T conditions so
n= pV/RT
R = 8.314 J/mol-K
T = 273 K
V = 1 as iven per unit volume
p = 1 atm = 10^5 Pa approximately
So n = 10^5 / (8.314 x 273) = 44 moles

b.
the solution you did is correct

c.
To find the ratio
= (4.58 x 10^-6) / (44) = 1.04 x 10 ^-7

rest solution d, e are exactly correct as given.

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