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Chapter 40: Problem 5

Write the balanced chemical reaction for the reaction of \(\mathrm{H}_{2} \mathrm{~S}\), as an acid, with water. Make sure that your response is properly charge balanced.

Short Answer

Expert verified
The balanced chemical equation for the reaction of H₂S with water is: H₂S + H₂O → H₃O⁺ + HS⁻

Step by step solution

01

Write the unbalanced equation

First, write down the unbalanced chemical reaction. Hydrogen sulfide (H₂S) reacts with water (H₂O) to produce hydronium ions (H₃O⁺) and bisulfide ions (HS⁻), as H₂S donates a proton (H⁺) to water:\nH₂S + H₂O → H₃O⁺ + HS⁻
02

Atom balancing

In the above reaction, the atoms are already balanced. There are two hydrogen atoms and one sulfur atom on both sides.
03

Charge balancing

After we have made sure that the atoms are balanced, the charges on both sides of the equation should also be balanced. In this case, they are. The left side is neutral, and on the right side a positive charge (H₃O⁺) is balanced by a negative charge (HS⁻).

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Chemical Reaction
Understanding a chemical reaction involves examining the process through which reactants transform into products. Importantly, this could mean the breaking and forming of bonds, resulting in new substances with distinct properties from the initial reactants.
Charge Balancing
Charge balancing is an essential step in writing a balanced chemical equation. It ensures that the total number of positive charges equals the total number of negative charges, reflecting the law of conservation of charge. This concept is vital because atoms become ions by losing or gaining electrons, and this affects the overall charge of the compounds formed.
Acid-Base Reaction
At the heart of an acid-base reaction is the transfer of protons between the acid (proton donor) and the base (proton acceptor). This concept is showcased in the given exercise where hydrogen sulfide (H\(_{2}\)S), an acid, donates a proton to water, functioning as a base, yielding hydronium (H\(_{3}\)O^+) and bisulfide (HS^-) ions.

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Most popular questions from this chapter

Write the balanced chemical reaction for \(\mathrm{CO}_{3}{ }^{2-}\), as a base, with water. Make sure that your response is properly charge balanced.

Answer and explain each of the following: a) What is the conjugate acid of \(\mathrm{NH}_{3}\) ? b) What is the conjugate base of \(\mathrm{H}_{2} \mathrm{O}\) ?
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