Final answer:
The molar mass of zinc is 65.38 g/mol, which is the mass of one mole of zinc atoms. This value is crucial for various calculations in chemistry, such as determining theoretical yields or the volume of gases produced in reactions.
Step-by-step explanation:
The molar mass of an element is the mass of one mole of atoms of that element. For zinc, which has five naturally occurring isotopes, the average atomic mass is used to calculate its molar mass. According to the provided reference information, the molar mass of zinc is 65.38 g/mol. This value represents the mass of 6.022 × 10²³ atoms of zinc, or one mole of zinc atoms. When performing calculations involving zinc, such as mass-mass calculations or stoichiometry, this molar mass is essential.
For example, a mass-mass calculation may require the molar masses of Zn and Zn(NO3)2 to find the theoretical yield of a reaction. In the case of calculating the volume of hydrogen gas produced from zinc using the ideal gas law, the molar mass of zinc is also necessary to determine the number of moles of zinc.