Calculate to three significant digits the density of boron trifluoride gas at exactly and exactly . You can assume boron trifluoride gas behaves as an ideal gas under these conditions.

The given question is incomplete. The complete question is :

Calculate to three significant digits the density of boron trifluoride gas at exactly −5°C and exactly 1 atm . You can assume boron trifluoride gas behaves as an ideal gas under these conditions.

The density of boron trifluoride gas is 3.08 g/L

Explanation:

To calculate the relation of density and molar mass of a compound, we use the ideal gas equation:

PV=nRT

P = pressure = 1 atm

V = Volume

n = number of moles

R = gas constant =0.0821 Latm/Kmol

T = temperature =

Number of moles (n) can be written as:

where, m = given mass

M = molar mass

where,

where d = density

The relation becomes:

PM=dRT  

Thus the density of boron trifluoride gas is 3.08 g/L