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The reaction of sulfur with hot concentrated nitric acid produces sulfuric acid, nitrogen dioxide, and water. Write the balanced chemical equation, explain why dilute nitric acid or hydrochloric acid
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Step-by-step solution
12 stepsPart a· 2 steps
Identify the reactants in Step 1.
In Step 1, solid sulfur reacts with hot nitric acid.
State an observable change.
The reaction produces nitrogen dioxide gas ().
Observation: A reddish-brown gas is produced.
Part b· 3 steps
Consider the nature of the reaction in Step 1.
Step 1 involves the oxidation of sulfur by nitric acid.
Explain why dilute nitric acid is unsuitable.
Dilute nitric acid is a weaker oxidizing agent compared to concentrated nitric acid and may not be strong enough to oxidize sulfur effectively.
Explain why hydrochloric acid is unsuitable.
Hydrochloric acid is a non-oxidizing acid and therefore cannot oxidize sulfur.
Explanation: Dilute nitric acid is a weaker oxidizing agent and may not react with sulfur. Hydrochloric acid is a non-oxidizing acid and will not react with sulfur.
Part c· 1 step
Write the balanced chemical equation for Step 1.
Sulfur reacts with hot concentrated nitric acid to produce sulfuric acid, nitrogen dioxide gas, and water.
Part d· 2 steps
Identify the reactants in Step 4.
In Step 4, copper(II) oxide () reacts with hydrochloric acid ().
Write the balanced chemical equation for Step 4.
Copper(II) oxide is a basic oxide and reacts with hydrochloric acid to form copper(II) chloride solution and water.
Part e· 2 steps
Identify Solution A from the flow chart.
Solution A is formed when sulfur reacts with hot nitric acid in Step 1.
Name Solution A.
The product of this reaction is sulfuric acid.
Name: Sulfuric acid
Part f· 2 steps
Identify gas C.
Gas C produced in Step 1 is nitrogen dioxide ().
State and explain a harmful effect.
Nitrogen dioxide is a major air pollutant.
Harmful effect: Nitrogen dioxide contributes to acid rain.
Explanation: It reacts with water and oxygen in the atmosphere to form nitric acid, which falls as acid rain, damaging buildings, vegetation, and aquatic ecosystems.
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