Water Equivalent

W_eq = specific heat × mass; W_eq(calorimeter) = mc

The mass of water that would absorb the same amount of heat as a calorimeter for a given temperature rise. Used to correct for heat absorbed by the calorimeter itself in calorimetr…

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Water Treatment

Water treatment is the process of improving water quality to make it suitable for a specific end-use (drinking, irrigation, industrial use, environmental discharge). Treatment proc…

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Weak Acid

Weak acid: Ka << 1; pH = ½(pKa - log c)

An acid that only partially dissociates in aqueous solution, establishing an equilibrium between undissociated acid molecules and hydrogen ions. Characterized by a small Ka value. …

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Weak Electrolyte

HA ⇌ H⁺ + A⁻

A weak electrolyte is a substance that only partially ionizes (dissociates) when dissolved in water, producing a solution with fewer ions than a strong electrolyte of the same conc…

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Weak Field Ligand

A ligand that causes small d-orbital splitting (small crystal field splitting energy Δ) in transition metal complexes. Weak-field ligands produce high-spin complexes because electr…

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About Chemicals Starting With W

This page lists all chemicals in our database beginning with the letter W. Each entry provides the chemical formula, CAS registry number, physical and chemical properties, common uses, and safety information. Use the alphabetical navigation above to browse other letters, or use the search function to find a specific chemical quickly.

Our chemical glossary covers acids, bases, salts, organic compounds, inorganic compounds, solvents, and many more categories. Click on any chemical name to view its full detailed profile.