33. The following data was generated during titration of 50.0 mL of a weak diprotic acid (H2A). 1) The volume of 0.200 M NAOH needed to reach the 2nd equivalent point: 120.0 mL II) pH after addition of 30.0 mL of NaOH: 4.00 II) pH after addition of 80.0 mL of NAOH: 8.00 IV) pH at the 2md equivalent point: ? A) Calculate the molarity of the H2A 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".