Question

What is the density (in g/l) of oxygen gas (o₂) at stp? group of answer choices

A. 1.43 g/l
B. 0.71 g/l
C. 1.31 g/l
D. 0.0141 g/l

Answer 1

The density of oxygen gas at STP is approximately 1.43 g/L.

Step-by-step explanation:

The density of oxygen gas at STP (standard temperature and pressure) can be calculated using the ideal gas law. At STP, the pressure is 1 atmosphere (atm) and the temperature is 0 degrees Celsius (°C), which is equivalent to 273 Kelvin (K). The molar mass of oxygen gas (O₂) is 32 g/mol. To find the density, we can use the equation:

Density = (molar mass ÷ molar volume)

The molar volume of an ideal gas at STP is 22.4 liters (L). Plugging in the values:

Density = (32 g/mol ÷ 22.4 L) = 1.43 g/L

Therefore, the density of oxygen gas at STP is approximately 1.43 g/L.