7A.3 Electrolytes and non-electrolytes

Point 19 of 22 — Module 4 — Aqueous Solutions and Their Properties (Colligative Properties and Osmosis)Question bank: 0 questions (0 with pictures)

19 7A.3 Electrolytes and non-electrolytes

Strong electrolytes (NaCl, KNO₃, HCl, NaOH) dissociate completely into ions; their solutions conduct electricity well and have i = 2 or 3.
Weak electrolytes (acetic acid, ammonia solution) ionise partially; they conduct weakly.
Non-electrolytes (sugar, urea, ethanol) dissolve as molecules and do not conduct; i = 1. Since the electrical conductivity of water increases with the amount of dissolved ions, a conductivity meter is a quick tool to estimate salinity in rivers, lakes and irrigation water.

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