Answer: Neon
Step-by-step explanation:
First, we'll use the ideal gas law, pV = nRT, to solve for the moles of unknown gas (n)
So putting all the values we get:
2.00 x 5.60 = n x 0.0821 x 273
n x 0.0821 x 273 = 2 x 5.60
22.4133n = 11.2
n = 0.499 moles
So the molar mass of the gas will be 10.1/0.499
= 20.24 g/mol
The molar mass corresponds to Neon gas. Therefore, the identity of the gas is Neon