Any compound with multiple covalent bonds
Answer: 25g/ml
Explanation:
Density = 100.0g/ 4.0mL = 25g/mL
Standard temperature is 273 K
Standard pressure is 1 atm
We use the ideal gas equation to find out density of nitrogen gas in g/L
Ideal gas equation:

Molar mass of 
Pressure = 1 atm
Temperature = 273 K

= 1.25 g/L
Therefore, density of nitrogen gas at STP is 1.25 g/L