Nitrous oxide (N₂O, also known as laughing gas) has been used as an anesthetic. What is the density of N₂O at 750 torr and 30 $\circ$ C?

Question

Quizplus · Accepted Answer

To calculate the density of a gas, we can use the following formula:
density = (pressure * molar mass)/(gas constant * temperature)

First, we need to convert the pressure to atm:
750 torr = 0.987 atm

We also need to convert the temperature to Kelvin:
30°C = 303.15 K

The molar mass of nitrous oxide is:
(14.01 g/mol) + (2*16.00 g/mol) = 44.01 g/mol

The gas constant (R) is: 0.0821 L*atm/mol*K

Plugging all of these values into the formula, we get:
density = (0.987 atm * 44.01 g/mol)/(0.0821 L*atm/mol*K * 303.15 K) = 1.73 g/L

Rounding to the nearest tenth, we get:
density = 1.7 g/L

Therefore, the best choice is D.

Nitrous Oxide (N2O, Also Known as Laughing Gas) Has Been ∘\circ∘