Study Questions137hFinally, the presence of arsenic is confirmed by addingAGNO3 to the solution of H3ASO4 to precipitate areddish brown solid Ag,AsO,. The composition of thissolid is As, 16.199% and Ag, 69.964%.(a) What are the oxidation numbers of As, S, and N inthe reaction of As2S3 with nitric acid?(b) What is the formula of the reddish brown solidAg,AsO,?Volume of addedVolume of addedsulfuric acidsulfuric acid94./ You have a bottle of solid barium hydroxide and somedilute sulfuric acid. You place some of the bariumhydroxide in water and slowly add sulfuric acid to themixture. While adding the sulfuric acid, you measure theconductivity of the mixture.(a)(b)(a) Write the complete, balanced equation for the reac-tion occurring when barium hydroxide and sulfuricacid are mixed.(b) Write the net ionic equation for the barium hydrox-ide and sulfuric acid reaction.Volume of addedsulfuric acidVolume of added(c) Which diagram represents the change in conductivitythesulfuric acidbarium hydrox-(d)as the acid is added toaqueous(c)ide? Explain brieflyElectrical conductivityElectrical conductivityElectrical conductivityElectrical conductivity

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Asked Oct 30, 2019
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Study Questions
137h
Finally, the presence of arsenic is confirmed by adding
AGNO3 to the solution of H3ASO4 to precipitate a
reddish brown solid Ag,AsO,. The composition of this
solid is As, 16.199% and Ag, 69.964%.
(a) What are the oxidation numbers of As, S, and N in
the reaction of As2S3 with nitric acid?
(b) What is the formula of the reddish brown solid
Ag,AsO,?
Volume of added
Volume of added
sulfuric acid
sulfuric acid
94./ You have a bottle of solid barium hydroxide and some
dilute sulfuric acid. You place some of the barium
hydroxide in water and slowly add sulfuric acid to the
mixture. While adding the sulfuric acid, you measure the
conductivity of the mixture.
(a)
(b)
(a) Write the complete, balanced equation for the reac-
tion occurring when barium hydroxide and sulfuric
acid are mixed.
(b) Write the net ionic equation for the barium hydrox-
ide and sulfuric acid reaction.
Volume of added
sulfuric acid
Volume of added
(c) Which diagram represents the change in conductivity
the
sulfuric acid
barium hydrox-
(d)
as the acid is added to
aqueous
(c)
ide? Explain briefly
Electrical conductivity
Electrical conductivity
Electrical conductivity
Electrical conductivity
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Study Questions 137h Finally, the presence of arsenic is confirmed by adding AGNO3 to the solution of H3ASO4 to precipitate a reddish brown solid Ag,AsO,. The composition of this solid is As, 16.199% and Ag, 69.964%. (a) What are the oxidation numbers of As, S, and N in the reaction of As2S3 with nitric acid? (b) What is the formula of the reddish brown solid Ag,AsO,? Volume of added Volume of added sulfuric acid sulfuric acid 94./ You have a bottle of solid barium hydroxide and some dilute sulfuric acid. You place some of the barium hydroxide in water and slowly add sulfuric acid to the mixture. While adding the sulfuric acid, you measure the conductivity of the mixture. (a) (b) (a) Write the complete, balanced equation for the reac- tion occurring when barium hydroxide and sulfuric acid are mixed. (b) Write the net ionic equation for the barium hydrox- ide and sulfuric acid reaction. Volume of added sulfuric acid Volume of added (c) Which diagram represents the change in conductivity the sulfuric acid barium hydrox- (d) as the acid is added to aqueous (c) ide? Explain briefly Electrical conductivity Electrical conductivity Electrical conductivity Electrical conductivity

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Expert Answer

Step 1

When solid barium hydroxide is mixed with water and reacted with sulfuric acid, a precipitate of barium sulfate is formed along with water. The balanced reaction is represented as,

Ва(ОН)2 (аq) + H-SO4 (aq)
BaSO4 (s) 2H20 (l)
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Ва(ОН)2 (аq) + H-SO4 (aq) BaSO4 (s) 2H20 (l)

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Step 2

Part B

The ionic equation is written by splitting the aqueous compounds in their respective ions. Barium sulfate and water will not undergo any dissociation as they are not in aqueous state. Hence the ionic equation is given as,

Ва* (аq) + 2 Он (ад) + 2 Н* (аq) + SO,2- (aq)
BaSO4 (s) 2 H20 (l)
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Ва* (аq) + 2 Он (ад) + 2 Н* (аq) + SO,2- (aq) BaSO4 (s) 2 H20 (l)

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Step 3

To derive the net ionic equation, the spectator ions must be cancelled from both the sides of the reaction. Here, there a...

Ва* (аq) + 2 Он (ад) + 2 Н* (аq) + SO,2- (aq)
BaSO4 (s) 2 H20 (l)
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Ва* (аq) + 2 Он (ад) + 2 Н* (аq) + SO,2- (aq) BaSO4 (s) 2 H20 (l)

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