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Ch.5 - Introduction to Solutions and Aqueous Solutions
Tro - Chemistry: A Molecular Approach 5th Edition
Tro5th EditionChemistry: A Molecular ApproachISBN: 9780134874371Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testoTro 5th EditionCh.5 - Introduction to Solutions and Aqueous SolutionsProblema 60a
Capitolo 5, Problema 60a

Complete and balance each gas-evolution equation. a. HNO3(aq) + Na2SO3(aq) →

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Identify the reactants: HNO_3 (aq) and Na_2SO_3 (aq).
Determine the products: The reaction between an acid (HNO_3) and a sulfite (Na_2SO_3) typically produces a salt (NaNO_3), water (H_2O), and sulfur dioxide gas (SO_2).
Write the unbalanced chemical equation: HNO_3 (aq) + Na_2SO_3 (aq) \(\rightarrow\) NaNO_3 (aq) + H_2O (l) + SO_2 (g).
Balance the equation: Start by balancing the number of sodium (Na) atoms, then balance the nitrogen (N) atoms, followed by the oxygen (O) and hydrogen (H) atoms.
Verify that the number of atoms for each element is equal on both sides of the equation to ensure it is balanced.

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Gas-Evolution Reactions

Gas-evolution reactions are chemical reactions that produce a gas as one of the products. These reactions often involve the combination of an acid with a carbonate, sulfite, or other compounds that release gas when they react. Understanding the nature of the reactants and the expected gas products is crucial for predicting the outcome of these reactions.
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Gas Evolution Reactions

Balancing Chemical Equations

Balancing chemical equations is the process of ensuring that the number of atoms for each element is the same on both sides of the equation. This is achieved by adjusting the coefficients of the reactants and products. A balanced equation reflects the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction.
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Balancing Chemical Equations

Acid-Base Reactions

Acid-base reactions involve the transfer of protons (H⁺ ions) between reactants. In the context of the given equation, nitric acid (HNO3) acts as an acid, while sodium sulfite (Na2SO3) can act as a base. Recognizing the roles of acids and bases in a reaction helps in predicting the products formed, including any gases that may evolve.
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Acid-Base Reaction
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