# Problem: Calculate the number of molecules in a deep breath of air whose volume is 2.30 L at body temperature, 37 oC, and a pressure of 740 torr.

###### FREE Expert Solution

$\overline{){\mathbf{PV}}{\mathbf{=}}{\mathbf{nRT}}}$

P = pressure, atm
V = volume, L
n = moles, mol
R = gas constant = 0.08206 (L·atm)/(mol·K)
T = temperature, K

###### Problem Details

Calculate the number of molecules in a deep breath of air whose volume is 2.30 L at body temperature, 37 oC, and a pressure of 740 torr.