What is difference between gram molecular mass and molecular mass?

Question

Answer

They are the same i.e. mass of one molecule.
However molecular mass is expressed in daltons or a.m.u. Whereas, gram molecular mass is molecular mass expressed in grams, it is usually used for calculations.

Answer

Gram atomic mass is mass in grams of one moles of atoms in a monoatomic chemical element. It is numerically equal to the relative atomic mass in grams . The atomic mass of an element expressed in grams is called gram atomic mass. while
Molecularmass is a number equal to the sum of the atomic masses of the atoms in a molecule . The molecular mass gives mass of a molecule relative to of 12 C , which is taken to have the mass of 12. Moli

Answer

Molecular mass is the mass of 1 molecule and gram molecular mass is the mass of 1 mole molecules (just to keep the numeric value same). while mass of 1 mole of water is 18 g . ... Whereas Gram molecular mass is the mass of one mole of molecules of that substance expressed in Gram/Mole.

Answer

< b='' />Gram Molecular Mass:< />
Gram molecular mass is a term used in chemistry to describe the mass of one mole of a substance. It is also known as molar mass or molecular weight. The gram molecular mass is expressed in grams per mole (g/mol). It represents the mass of a substance relative to the unified atomic mass unit (u).

< b='' />Molecular Mass:< />
Molecular mass refers to the sum of the atomic masses of all the atoms in a molecule. It is also known as the molecular weight or formula weight. Molecular mass is expressed in atomic mass units (u) or grams per mole (g/mol). It provides information about the mass of a specific molecule.

Difference between Gram Molecular Mass and Molecular Mass:< />

1. < b='' />Definition:< />
- Gram Molecular Mass: Gram molecular mass is the mass of one mole of a substance.
- Molecular Mass: Molecular mass is the sum of the atomic masses of all the atoms in a molecule.

2. < b='' />Units:< />
- Gram Molecular Mass: It is expressed in grams per mole (g/mol).
- Molecular Mass: It is expressed in atomic mass units (u) or grams per mole (g/mol).

3. < b='' />Calculation:< />
- Gram Molecular Mass: Gram molecular mass is calculated by adding up the atomic masses of all the atoms in the molecule.
- Molecular Mass: Molecular mass is calculated by summing the atomic masses of all the atoms present in the molecule.

4. < b='' />Usage:< />
- Gram Molecular Mass: Gram molecular mass is used to convert between grams and moles in chemical calculations.
- Molecular Mass: Molecular mass is used to determine the mass of a specific molecule.

5. < b='' />Application:< />
- Gram Molecular Mass: Gram molecular mass is used in stoichiometry to determine the amount of reactants and products in a chemical reaction.
- Molecular Mass: Molecular mass is used in various applications such as determining the molecular formula of a compound and calculating the percentage composition of elements in a compound.

In summary, gram molecular mass refers to the mass of one mole of a substance, expressed in grams per mole, while molecular mass represents the sum of the atomic masses of all the atoms in a molecule, expressed in atomic mass units or grams per mole. Gram molecular mass is used in stoichiometry and chemical calculations, while molecular mass is used in various applications related to molecular structure and composition.

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