Abstract
All physical chemistry textbooks state that solutions of strong electrolytes behave in a non-ideal fashion, except at very high dilution. Examples are provided here for ideal behaviors to very high concentrations, as demonstrated by excellent adherence to Raoult’s law: for NaNO2 solutions up to 12 molal (827.9 g per kilogram of water) and for CsNO2 solutions up to 35 molal (6821.9 g/kg). Improved adherence is reported for previously published almost-ideal RbNO2 solutions up to 62 molal (8151.1 g/kg).
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