Question

Which of the following gas samples would contain the same amount of gas as 200 mL of helium, He(g), at 25° C and 1 atm?Select one:a.40 mL of methane, CH4 (g), at 25° C and 1 atmb.400 mL of hydrogen, H2 (g), at 25° C and 1 atmc.200 mL of neon, Ne (g), at 25° C and 1 atmd.all the above

Answer 1

In this question, we have to choose which of the options will present the same amount as 200 mL of Helium gas, at 25°C and 1 atm of pressure.

In order to find this answer, we can use the Avogadro's law, in which we will have the same temperature and pressure, and when two gases have the same value of T and P, and also Volume, the number of moles, or quantity will also be the same.

Therefore we are looking for the option that has the same measurement values as the Helium gas, and the option will be 200 mL of Neon gas at 25°C and 1 atm, the same values will generate the same amount of each gas.

The answer will be letter C