Question

Calculate the mass of 480 dm³ of hydrogen, measured at room temperature and pressure.

(A) 0.48 g
(B) 1.08 g
(C) 0.96 g
(D) 10.8 g

Answer 1

To calculate the mass of 480 dm³ of hydrogen gas at room temperature and pressure, we can use the density of hydrogen. The correct answer is 10.8 g. Therefore, the correct option is D.

Step-by-step explanation:

To calculate the mass of 480 dm³ of hydrogen, we need to know the density of hydrogen gas at room temperature and pressure. The density of hydrogen at room temperature (around 25°C) and pressure (1 atm) is approximately 0.09 g/L. Using this density, we can calculate the mass of the given volume of hydrogen:

Mass = Volume x Density

Mass = 480 dm³ x 0.09 g/L = 43.2 g

Therefore, the correct answer is option (D) 10.8 g.