According to the instructions, the density of air at STP is about

1.20k(g)/(m^(3))

, and air at the surface of the earth is about

78%N_(2)

. If air were actually

100%N_(2)

, calculate the number density

(N)/(V)

for air at the surface of the earth, using this density, the mass of a nitrogen molecule (which is given in the procedure handout), and the relationships between

n,N,m_(each)

M_(tot)

and

M_(mol)

. Show all steps in your calculation, and include units in your answer.

According to the instructions, the density of air at STP is about 1.20kg/m3, and air at the surface of the earth is about 78%N2. If air were actually 100%N2, calculate the number density N/V for air at the surface of the earth, using this density, the mass of a nitrogen molecule (which is given in the procedure handout), and the relationships between n,N,meach Mtot, and Mmol. Show all steps in your calculation, and include units in your