A solution of 100.0 mL of 0.200 M KOH is mixed with a solution of 200.0 mL of 0.150 M NiSO₄. (a) Write the balanced chemical equation for the reaction that occurs.

검증된 단계별 안내

Identify the reactants: KOH and NiSO_4.

Determine the products of the reaction: KOH is a strong base and NiSO_4 is a salt, so they will undergo a double displacement reaction to form Ni(OH)_2 and K_2SO_4.

Write the unbalanced chemical equation: KOH + NiSO_4 -> Ni(OH)_2 + K_2SO_4.

Balance the chemical equation by ensuring the same number of each type of atom on both sides of the equation.

The balanced chemical equation is: 2 KOH + NiSO_4 -> Ni(OH)_2 + K_2SO_4.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Acid-Base Reactions

Acid-base reactions involve the transfer of protons (H+) between reactants. In this case, KOH acts as a strong base, providing hydroxide ions (OH-) that can react with metal cations. Understanding the nature of acids and bases is crucial for predicting the products of the reaction.

Stoichiometry

Stoichiometry is the calculation of reactants and products in chemical reactions based on balanced equations. It allows us to determine the proportions of KOH and NiSO4 that will react, which is essential for writing the balanced chemical equation and understanding the quantities involved.

Precipitation Reactions

Precipitation reactions occur when two soluble salts react to form an insoluble compound, or precipitate. In this scenario, the reaction between KOH and NiSO4 may produce nickel hydroxide (Ni(OH)2), which is insoluble in water. Recognizing the solubility rules helps in identifying the products of the reaction.

A solution of 100.0 mL of 0.200 M KOH is mixed with a solution of 200.0 mL of 0.150 M NiSO4. (a) Write the balanced chemical equation for the reaction that occurs.