2. Most commercial hydrochloric acid is prepared by heating NaCl with concentrated H₂SO4. How much sulfuric acid (in kg) containing 90.0% H2SO4 by weight is needed for the production of 2000 kg of concentrated hydrochloric acid containing 42.0% HCI by weight? The equation for the reaction is 2NaCl + H₂SO O 1620 6210 O 1260 2160 A - Na₂SO4 + 2HCl.

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Q: The pH of a basic solution is 12.99. What is [H⁺]?

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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".