The given question stated that treatment of gold metal with BrF 3 and KF produces Br 2 and KAuF 4 , a salt of gold. The oxidizing and reducing agent in the reaction and mass of the gold salt that forms when 73.5 g mixture of equal masses of all three reactants prepared is to be stated. Concept introduction: The oxidation state is calculated by the formula, Sum of oxidation states of the constituents = Overall charge on the complex The formula to calculate number of moles is, n = m M w To determine: The oxidizing and reducing agent and the mass of gold salt in the reaction mixture.

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Chapter 4, Problem 89E

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The given question stated that treatment of gold metal with BrF3 and KF produces Br2 and KAuF4 , a salt of gold. The oxidizing and reducing agent in the reaction and mass of the gold salt that forms when 73.5 g mixture of equal masses of all three reactants prepared is to be stated.

Concept introduction: The oxidation state is calculated by the formula,
Sum of oxidation states of the constituents=Overall charge on the complex

The formula to calculate number of moles is,
n=mMw

To determine: The oxidizing and reducing agent and the mass of gold salt in the reaction mixture.

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