Final answer:
Without the mass spectrum, we cannot definitively determine which element is represented by the mass spectrum in question. However, we can provide information about the isotopes of hydrogen, narratives about the isotopes of common elements, and the molar masses of several gaseous elements such as hydrogen, nitrogen, and bromine.
Step-by-step explanation:
The mass spectrum of an element is unique and can help identify the presence of different isotopes. Hydrogen (H) has three isotopes: protium (H-1), deuterium (D or H-2), and tritium (T or H-3). The presence of these isotopes would show up in a mass spectrum. Carbon-14 (C-14) is an isotope of carbon and would have a specific peak in a mass spectrum corresponding to its mass number. Similarly, oxygen and nitrogen also have isotopes that would contribute to their unique mass spectra.
Determining which element has the mass spectrum depicted in the question is a matter of comparing the mass spectral lines to the known isotopic masses and abundances of the elements. For example, if the mass spectrum showed a prominent peak at mass number 14, this could indicate the presence of nitrogen-14 or carbon-14, depending on the context provided by the question. Without the actual mass spectrum provided, we cannot definitively determine which element is represented. However, we can give the molar mass of each gas: hydrogen gas (H₂) has a molar mass of approximately 2 g/mol, nitrogen gas (N₂) has a molar mass of approximately 28 g/mol, and bromine gas (Br₂) has a molar mass of approximately 160 g/mol.