Find the volume of 0.110 M hydrochloric acid necessary to react completely with

Question

Find the volume of 0.110 M hydrochloric acid necessary to react completely with 1.52 g AI(OH)_3. Treatment of gold metal with BrF_3 and Br_2 and KAuF_4, a salt of gold. Identify the oxidizing agent and the reducing agent in this reaction. Find the means of the gold salt that forms when a 73.5 g mixture of masses of all three reactants is prepared. We prepare a solution by mixing 0.10 L of 0.12 M sodium chloride with 0.23 L of a 0.18 M MgCl_2 solution. What volume of a 0.20 M silver nitrate solution do we need to precipitate all the Cl^- ion in the solution as AgCl?

Explanation / Answer

119. Qualitative analysis of metal cations

Solution gave no precipitate with NaCl : Ag+ is absent forms,

no AgCl formed

Solution gave white precipitate with Na2SO4 : Cu2+ present

Formed CuSO4, filtered

filtrate gave precipitate with Na2CO3 : Ca2+ present

formed CaCO3

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