Definition

Noun: 1. A precise weighing instrument: A "chemical balance" is a highly accurate beam balance specifically designed for measuring the mass of substances in quantitative chemical analysis. It is characterized by its sensitivity and precision, essential for obtaining exact measurements in laboratory experiments.

Usage

• The term is used as a compound noun to refer to the specific laboratory apparatus. It functions as a singular, countable noun.
• Example: "The chemist carefully placed the sample on the pan of the chemical balance to determine its exact mass."
• Example: "Accurate results in this experiment depend on using a properly calibrated chemical balance."

Advanced Usage

• The phrase is typically used in its full form "chemical balance" within scientific and laboratory contexts. It is a technical term for the equipment itself.
• Historical Context: While modern digital analytical balances have largely replaced traditional beam-type chemical balances, the term remains in use to describe high-precision weighing instruments in chemistry.

Variants and Related Words

• Analytical balance: A modern, often electronic, balance with very high precision used for the same purpose. This is a more contemporary synonym.
• Beam balance: A more general term for a balance that uses a lever (beam) and pans. A chemical balance is a specific, highly precise type of beam balance.
• Scale: A broader, less precise term for any device used for weighing.

Synonyms

• Analytical balance
• Precision balance

Notes on Meaning

• Important Distinction: Do not confuse "chemical balance" with the unrelated chemical concept of a "balance" in a reaction (e.g., equilibrium). This term refers exclusively to the physical weighing instrument.
• The precision of a chemical balance is its defining feature, distinguishing it from less precise balances or scales used for other purposes.

Noun

1. a beam balance of great precision used in quantitative chemical analysis