Question

Molar mass is a numerical value that represents ______

a) the mass of a substance divided by the amount of that substance

b) the mass of a substance

c) the amount of a substance

d) the number of atoms in a molecule​

Answer 1

Answer:

A. The mass of a substance divided by the amout of that substance.

Explanation:

In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles. The molar mass is a bulk, not molecular, property of a substance.

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Answer 2

Molar mass is a numerical value that represents the number of atoms in a molecule.

In Chemistry, the molar mass specifies the amount of atoms, molecules and compounds which is carried by one mole of substances.

Molar mass(M) = $\frac{mass}{mole}$

The S.I unit of molar mass is g/mol.

The characteristics of Molar mass are :-

• It does not depend upon the size of the molecules and not on the atomic property of it.
• Used for conversion of mass of a substance to its mole and mole of substance to its mass.

The constant value of Mole is 6.022×$10^{23}$, which is also known as Avogadro Constant.

However, to calculate the exact mass of the substance, we can take the help of atomic mass of any atoms in the periodic table and can calculate the molar mass out of it.

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