Molar Mass of Zinc
The molar mass of zinc, Zn, is 65.38 grams per mole. This means that one mole of zinc, which contains 6.022 x 10^23 atoms of zinc, has a mass of 65.38 grams.
The molar mass of zinc can be calculated using the following formula:
Molar mass = (atomic mass of zinc) x (number of atoms per mole) The atomic mass of zinc is 65.38 atomic mass units (amu). The number of atoms per mole is 6.022 x 10^23.
Molar mass = (65.38 amu) x (6.022 x 10^23) Molar mass = 65.38 g/mol The molar mass of zinc is a useful quantity in chemistry. It can be used to calculate the mass of a given number of zinc atoms, or the number of zinc atoms in a given mass of zinc.
Questions Related to Molar Mass of Zinc
1. What is the mass of 100 zinc atoms?
The mass of 100 zinc atoms is equal to the molar mass of zinc divided by the number of atoms per mole.
Mass = molar mass / (number of atoms per mole) Mass = 65.38 g/mol / 6.022 x 10^23 Mass = 1.087 x 10^-22 g Therefore, the mass of 100 zinc atoms is 1.087 x 10^-22 grams.
2. What is the number of zinc atoms in 1 gram of zinc?
The number of zinc atoms in 1 gram of zinc is equal to the mass of 1 gram divided by the molar mass of zinc.
Number of atoms = mass / molar mass Number of atoms = 1 g / 65.38 g/mol Number of atoms = 0.0152 x 10^23 Therefore, there are 0.0152 x 10^23 zinc atoms in 1 gram of zinc.
3. What is the mass of 1 mole of zinc chloride, ZnCl2?
The mass of 1 mole of zinc chloride is equal to the sum of the molar masses of zinc and chlorine.
Mass = molar mass of Zn + molar mass of Cl Mass = 65.38 g/mol + 35.45 g/mol Mass = 100.83 g/mol Therefore, the mass of 1 mole of zinc chloride is 100.83 grams.
These are just a few examples of questions that can be answered using the molar mass of zinc. The molar mass of zinc is a fundamental quantity in chemistry that has many applications.
