The arsenic in a 1.22-g sample of a pesticide was converted to AsO 4 3- by suitable chemical treatment. It was then titrated using Ag + to form Ag 3 AsO 4 as a precipitate. (b) Name Ag 3 AsO 4 by analogy to the corresponding compound containing phosphorus in place of arsenic.

Step 1: Identify the corresponding compound containing phosphorus in place of arsenic. In this case, the phosphorus compound would be $$Ag_{3}PO$$_{4}.. Step 2: Determine the name of the phosphorus compound. $$Ag_{3}PO$$_{4} is known as silver phosphate.. Step 3: Use the name of the phosphorus compound as a guide to name the arsenic compound. Replace 'phosphate' with 'arsenate' in the name of the phosphorus compound.. Step 4: The name of $$Ag_{3}$$AsO_{4} is therefore silver arsenate.

The arsenic in a 1.22-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. (b) Name Ag3AsO4 by analogy to the corresponding compound containing phosphorus in place of arsenic.

Step 1: Identify the corresponding compound containing phosphorus in place of arsenic. In this case, the phosphorus compound would be $$Ag_{3}PO$$_{4}. Step 2: Determine the name of the phosphorus compound. $$Ag_{3}PO$$_{4} is known as silver phosphate. Step 3: Use the name of the phosphorus compound as a guide to name the arsenic compound. Replace 'phosphate' with 'arsenate' in the name of the phosphorus compound. Step 4: The name of $$Ag_{3}$$AsO_{4} is therefore silver arsenate.

Ch.4 - Reactions in Aqueous Solution

Brown - Chemistry: The Central Science 14th Edition

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Ch.4 - Reactions in Aqueous Solution

Problem 113b

Chapter 4, Problem 113b

The arsenic in a 1.22-g sample of a pesticide was converted to AsO₄^3- by suitable chemical treatment. It was then titrated using Ag⁺ to form Ag₃AsO₄ as a precipitate. (b) Name Ag₃AsO₄ by analogy to the corresponding compound containing phosphorus in place of arsenic.

Verified step by step guidance

Step 1: Identify the corresponding compound containing phosphorus in place of arsenic. In this case, the phosphorus compound would be Ag₃PO₄.

Step 2: Determine the name of the phosphorus compound. Ag₃PO₄ is known as silver phosphate.

Step 3: Use the name of the phosphorus compound as a guide to name the arsenic compound. Replace 'phosphate' with 'arsenate' in the name of the phosphorus compound.

Step 4: The name of Ag₃AsO₄ is therefore silver arsenate.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Nomenclature of Inorganic Compounds

Inorganic nomenclature involves naming compounds based on their chemical composition and structure. For example, the naming of metal salts often follows the pattern of naming the cation first followed by the anion. In this case, Ag3AsO4 can be named by drawing an analogy to similar compounds, such as those containing phosphorus, which helps in understanding the naming conventions.

Precipitation Reactions

Precipitation reactions occur when two soluble salts react to form an insoluble compound, known as a precipitate. In this scenario, the titration of AsO43- with Ag+ leads to the formation of Ag3AsO4, which precipitates out of solution. Understanding this concept is crucial for predicting the formation of solid products in chemical reactions.

Stoichiometry in Chemical Reactions

Stoichiometry involves the calculation of reactants and products in chemical reactions based on balanced equations. In the context of the question, knowing the stoichiometric ratios between Ag+ and AsO43- is essential for determining the amounts of each substance involved in the titration process. This concept is fundamental for quantifying the results of chemical analyses.

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Textbook Question

The arsenic in a 1.22-g sample of a pesticide was converted to AsO₄^3- by suitable chemical treatment. It was then titrated using Ag⁺ to form Ag₃AsO₄ as a precipitate. (c) If it took 25.0 mL of 0.102 M Ag⁺to reach the equivalence point in this titration, what is the mass percentage of arsenic in the pesticide?

Textbook Question

The arsenic in a 1.22-g sample of a pesticide was converted to AsO₄^3- by suitable chemical treatment. It was then titrated using Ag⁺ to form Ag₃AsO₄ as a precipitate. (a) What is the oxidation state of As in AsO₄^3-?

Textbook Question

Ritalin is the trade name of a drug, methylphenidate, used to treat attention-deficit/hyperactivity disorder in young adults. The chemical structure of methylphenidate is (c) Ritalin has a half-life of 3 hours in the blood, which means that after 3 hours the concentration in the blood has decreased by half of its initial value. For the man in part (b), what is the concentration of Ritalin in his blood after 6 hours?