The rules for naming polyatomic ionic compounds are as follows:
1. The metal keeps its name and is named and written first.
– For transition metals, we use Roman numerals to denote its charge.
2. Name the polyatomic ion as you would normally.
The arsenic in a 1.26 g sample of a pesticide was converted to AsO43- by suitable chemical treatment. It was then titrated using Ag+ to form Ag3AsO4 as a precipitate.
Name Ag3AsO4 by analogy to the corresponding compound containing phosphorus in place of arsenic.
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