Antimony is the only potential interferent, as it reacts similarly to arsenic an

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Antimony is the only potential interferent, as it reacts similarly to arsenic and produces a similar silvery-black film; however, antimony does not dissolve in a solution of sodium hypochlorite, but arsenic does. Therefore, the completion of the Marsh test is to add a solution of sodium hypochlorite to the elemental arsenic and see if the silvery-black film dissolves. Write the balanced chemical equation for this final reaction. Express your answer as an ionic equation. Identify all of the phases in your answer. SubmitMy AnswersGive Up Antimony is the only potential interferent, as it reacts similarly to arsenic and produces a similar silvery-black film; however, antimony does not dissolve in a solution of sodium hypochlorite, but arsenic does. Therefore, the completion of the Marsh test is to add a solution of sodium hypochlorite to the elemental arsenic and see if the silvery-black film dissolves. Write the balanced chemical equation for this final reaction. Express your answer as an ionic equation. Identify all of the phases in your answer. SubmitMy AnswersGive Up SubmitMy AnswersGive Up Part C Express your answer as a chemical equation. Identify all of the phases in your answer. SubmitMy AnswersGive Up SubmitMy AnswersGive Up

Explanation / Answer

As+ NaOCl-> As2O3+ NaCl

As-> As+3

Cl+-> Cl-

H2S(g)+As (s)-> As2S3 (s)+H2(g)

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