Question

If the molecular mass and atomic mass of sulphur are 256 &32 respectively then what is its atomicity?

Answer 1

Atomicity = (molecular mass)/(atomic mass) =256/32 =8

Answer 2

Answer:

Concept:

The mass of a molecule is quantified in daltons and is called molecular mass (m). Because they contain various isotopes of an element, two molecules of the same substance may have diverse molecular weights. A unitless ratio of a substance's mass to the unified mass of an atom (also known as the dalton) as specified by IUPAC is relative molecular mass. Although the molecular mass and comparative molar weights are not identical to the molar mass, they are related. The molar mass is measured in grammes per mol and is described as the mass of a material divided by its volume. When working with macroscopic (weighable) quantities of a substance, the molar mass is usually the more relevant figure.

Given:

What is the atomicity of sulphur if its relative molecular and atomic mass are 256 and 32, respectively?

Find:

What is the atomicity of sulphur when its molecular mass and atomic mass are 256 and 32, respectively?

Answer:

The number of atoms in a molecule is multiplied to calculate its atomicity. The molecular mass is calculated by adding the masses of each element in the compound. The atomicities of distinct allotropes with same element might differ. Its atomicity is two since it has two hydrogen atoms in its molecule. As a result, an element's atomicity is equal to its molecular mass divided by its atomic mass.

$Atomicity =\frac{Atomic.mass}{Molecular.mass}$

                 $=\frac{32}{256}$

                 $=8$

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