A-LevelChemistryAtoms, molecules and stoichiometryMay/June 2019Paper 3 Q110 Marks
Metal carbonates react with acid to produce carbon dioxide. You will determine the identity of a Group 2 metal M in a carbonate of formula MCO3 by reacting the carbonate with excess dilute hydrochloric acid and measuring the volume of carbon dioxide produced. MCO3(s) + 2HCl(aq) → MCl2(aq) + CO2(g) + H₂O(I) FA 1 is 50 cm³ of 4.00 moldm⁻³ hydrochloric acid, HCl. FA 2 is the metal carbonate, MCO3.
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