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Chapter 9: Problem 45

Which of the following acids is produced by treating \(\mathrm{KNO}_{3}\) with \(\mathrm{H}_{2} \mathrm{SO}_{4}\) under suitable experimental conditions? (a) \(\mathrm{HNO}_{2}\) (b) \(\mathrm{H}_{2} \mathrm{SO}_{3}\) (c) \(\mathrm{HNO}_{3}\) (d) \(\mathrm{H}_{2} \mathrm{~S}_{2} \mathrm{O}_{7}\)

Short Answer

Expert verified
Answer: (c) HNO3 (nitric acid)

Step by step solution

01

Write the reactants

Given reactants are potassium nitrate (KNO3) and sulfuric acid (H2SO4).
02

Determine the potential reaction

Potassium nitrate (KNO3) is a salt of nitric acid (HNO3) and potassium hydroxide (KOH). When it reacts with sulfuric acid (H2SO4), we can expect an acid-base reaction to occur, producing nitric acid (HNO3) and potassium sulfate (K2SO4).
03

Write the balanced chemical equation

The balanced chemical equation for this reaction would be: KNO3 + H2SO4 -> HNO3 + K2SO4
04

Identify the produced acid

From the balanced chemical equation, we can see that the acid produced is HNO3 (nitric acid).
05

Choose the correct answer

The correct answer is (c) HNO3 (nitric acid).

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