Question

A new diatomic element, ___, is discovered and is found to have a molar mass of __. At high temperatures, elemental reacts with (molar mass) to produce the compound as shown in the equation below.

a) X, M
b) Y, N
c) Z, O
d) W, P

Answer 1

Chemistry is the subject, focusing on calculating the molar mass of gases using the ideal gas law and understanding the concept of diatomic molecules.

Step-by-step explanation:

The subject in question is Chemistry, specifically relating to the stoichiometry of chemical reactions, molar mass, and the properties of gases. When we want to calculate the molar mass of a gas, we can use the ideal gas law equation PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin. This allows us to deduce the molar mass of a gas by rearranging the equation to solve for n and then using the mass of the gas to find its molar mass.

For example, to calculate the molar mass of an oxide of nitrogen, we would use the given conditions of temperature, pressure, and volume, along with the mass of the gas. Also, reference information notes that certain elements, such as hydrogen (H₂), nitrogen (N₂), and oxygen (O₂), exist as diatomic molecules.