HClNaOH

HClNaOH refers to the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH). When mixed in aqueous solution, they react to form sodium chloride and water: HCl + NaOH → NaCl + H2O. The reaction is exothermic, releasing about 57 kJ per mole of water formed, and the stoichiometry is 1:1.

In solution, HCl and NaOH dissociate completely, giving H+ and Cl−, Na+ and OH−. The hydroxide ions neutralize the hydrogen ions to form water, while the sodium and chloride ions remain in solution as NaCl. At the equivalence point, the amounts of acid and base are equal, and the pH is close to neutral under ideal conditions. Real solutions may differ slightly due to ionic strength and activity coefficients.

Applications include acid-base titration to determine concentrations, preparation of saline solutions, and demonstrations of neutralization in educational settings. Both reagents are highly corrosive; appropriate safety measures are required, including eye and skin protection and proper disposal. The term HClNaOH is used to denote the neutralization reaction rather than a single chemical compound.