Question

A scientist examined a colorless gas, which had a density between 1.30 and 1.60 g/L and the boiling point between -190 and 180°C. The gas reacted with sodium Na metal. Based on the data in the table, what most likely identify the gas.​?

Answer 1

The gas can be most likely identified as Hydrogen (H2) based on its reaction with sodium (Na) metal and the given density range. Neon (Ne) is not the gas being examined.

Step-by-step explanation:

Based on the given information, the gas can be identified as Neon (Ne). Neon is a colorless gas that has a density of 0.90 g/L at room temperature and a boiling point of -246.08°C. The density range provided in the question (1.30-1.60 g/L) is higher than the density of Neon, indicating that it is not Neon. Therefore, Neon is not the gas being examined.

Since the gas reacted with sodium (Na) metal, it can be inferred that the gas is most likely Hydrogen (H2). Hydrogen gas has a boiling point of -252.87°C and reacts with Na metal to produce NaH. The density range provided in the question (1.30-1.60 g/L) falls within the typical density range of Hydrogen gas, which is 0.08-0.09 g/L.