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Molecular Weight

Definition:

Molecular weight refers to the total mass of a molecule, which is calculated by summing the atomic weights of all atoms in the molecule.

Senses:

Sense 1:

Noun: The mass of a molecule in atomic mass units (amu).

Example: The molecular weight of water (H₂O) is approximately 18 amu.

Sense 2:

Noun: The average mass of a mole of a substance, usually expressed in grams per mole (g/mol).

Example: The molecular weight of carbon dioxide (CO₂) is 44 g/mol.

Usage:

Popular: Molecular weight is widely used in chemistry to determine various properties of substances, such as their molar mass, concentration, and stoichiometry.

Local: In local scientific research, determining the molecular weight of compounds is crucial for analyzing and identifying unknown substances.

Related Products:

• Molecular Weight Calculator
• Molecular Weight Scale
• Molecular Weight Kit