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Chemistry-Spectator Ions
Chemistry (CHM104)
Rockland Community College
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Chemistry Spectator Ions - Spectator ions are ions that do not participate in a chemical reaction and remain unchanged throughout the reaction. - They are present in the reaction mixture but do not undergo any chemical change. - Spectator ions play an important role in understanding chemical reactions and predicting the products of a reaction. - For example, when hydrochloric acid (HCl) is added to sodium hydroxide (NaOH) solution, they react to form water and sodium chloride (NaCl): HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) - In this reaction, the hydrogen ion (H+) from the hydrochloric acid reacts with the hydroxide ion (OH-) from the sodium hydroxide to form water. - The sodium ion (Na+) from the sodium hydroxide reacts with the chloride ion (Cl-) from the hydrochloric acid to form sodium chloride. - In this reaction, the sodium ion and the chloride ion are spectator ions, as they are present in the reaction mixture but do not undergo any chemical change. - Spectator ions are important in understanding the stoichiometry of a reaction, which is the quantitative relationship between the reactants and products in a chemical reaction. - By identifying the spectator ions, it is possible to determine the limiting reactant and the theoretical yield of a reaction. - Spectator ions are also important in understanding acid-base reactions, precipitation reactions, and redox reactions.
- In these types of reactions, spectator ions can be used to predict the products of a reaction and to balance chemical equations.
Chemistry-Spectator Ions
Course: Chemistry (CHM104)
University: Rockland Community College
