74. Solving a chemistry problem

74. Solving a chemistry problem

D.17. In chemical analysis, the precipitation of zinc ions Zn2 by the action of hydrosulfide acid H2S is carried out in the presence of sodium acetate CH3COONa. Suggest what role sodium acetate plays in this process. Write the micelle formula of a zinc sulfide sol formed in the absence of CH3COONa. Are there other ways to accelerate the precipitation of particles of insoluble zinc sulfide ZnS in this analysis?

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