2. Zinc oxide is a drug from the class of oxides, insoluble in water. Requires pre-treatment to convert zinc into an ionic state. To do this, zinc oxide is dissolved in acid. The methods of testing for authenticity for zinc ion are unified and set out in the General Pharmacopoeia Monograph “General reactions to authenticity.”
Calculate the weights required for the detection of cations and anions, clarify the analysis method.

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