An equilibrium mixture of sulfur (IV) oxide and chlorine was dissolved in water to give 120 g of a solution containing 0.1% by mass of hydrogen cations. Another sample of the same volume of sulfur gas was dissolved in 29.58 g of a solution containing 1.6 g of sodium hydroxide. What is the mass fraction (%) of neutral salt obtained in the solution?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".