A-LevelChemistryReaction kineticsMay/June 2025Paper 2 Q411 Marks
The reaction between Na₂S₂O₃(aq) and HCl(aq) is monitored at constant temperature. Na₂S₂O₃ + 2HCl → 2NaCl + SO₂ + S + H₂O Fig. 4.1 shows how the concentration of HCl(aq) varies with time. [Fig. 4.1]
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