Question

Calculate the molecular mass of $CaS{{O}_{4}}$ .

Answer 1

Calcium sulphate and its hydrates are inorganic compounds having the formula $CaS{{O}_{4}}$ . It's used as a desiccant when it's in its anhydrous form. One hydrate is known as plaster of Paris, whereas another is found in nature as the mineral gypsum. It has a wide range of applications in industry. All of the forms are white solids that are water insoluble. Permanent hardness in water is caused by calcium sulphate.

Complete answer:
The mass of a molecule is measured in daltons and is called molecular mass (m) (Da or u). Because they contain various isotopes of an element, multiple molecules of the same chemical may have different molecular weights. The related quantity relative molecular mass is a unitless ratio of a molecule's mass to the unified atomic mass unit (also known as the dalton) as defined by IUPAC. The molecular mass and relative molecular mass are not the same as the molar mass, but they are linked. The molar mass is stated in g/mol and is defined as the mass of a particular substance divided by the quantity of that substance.
The atomic masses of all the atoms in a compound must be added to determine the molecular mass of $CaS{{O}_{4}}$ .
Ca has an atomic mass of 40.08.
S has a mass of 32.06 atomic mass.
O has a mass of 16 atomic masses.
To find $CaS{{O}_{4}}$ we get $40.08\text{ }+\text{ }32.06\text{ }+\text{ }16\text{ }\times \text{ }4\text{ }=\text{ }136.14$
$CaS{{O}_{4}}$ has a molecular mass of $136.14\text{ }gmo{{l}^{-1}}$ as a result.

Note:
The molecular mass of tiny to medium-sized molecules can be used to identify the makeup of elements in the molecule using mass spectrometry. Mass spectrometry may be used to estimate the molecular masses of macromolecules such as proteins; however, when crystallographic or mass spectrometric data is unavailable, techniques based on viscosity and light scattering are employed to calculate molecular mass.