Final answer:
Without additional details on the reactants and desired product, it is not possible to identify the correct reagent. Typically, NaOH would react with an acid like HCl or CH3COOH to produce a salt and water. The student should provide more details to receive a precise answer.
Step-by-step explanation:
The student's question is asking for identification of a reagent that will produce a specified product when reacted with another given chemical. Specific details of the chemicals involved or the desired product are not provided, making it impossible to give an accurate answer. Nonetheless, in the context of typical acid-base reactions provided as examples, which involve sodium hydroxide (NaOH) reacting with an acid to produce a salt and water, we can infer the following:
When NaOH is mixed with hydrochloric acid (HCl), the reaction is as follows:
HCl + NaOH → NaCl + H₂O
If acetic acid (CH₃COOH) is the reactant, the reaction with NaOH would be:
CH₃COOH + NaOH → CH₃COONa + H₂O
For an excess reactant scenario, given that 5.00 mmol CH₃COOH reacts with 1.00 mmol NaOH leaving an excess of CH₃COOH:
5.00 mmol CH₃COOH – 1.00 mmol OH⁻ = 4.00 mmol CH₃COOH
To answer such a question accurately, the specific details of the reaction such as reactants, products, and conditions must be provided. The student is encouraged to give more information for a precise response.