The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HCN is a weak acid.

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**Preparation of Aqueous Solutions and Equilibrium Species**

The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself.

Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row.

You will find it useful to keep in mind that HCN is a weak acid.

**Solution Descriptions and Entries:**

1. **1 mol of KOH is added to 1.0 L of a 0.7 M HCN solution.**
   - Acids: (empty)
   - Bases: (empty)
   - Other: (empty)

2. **0.07 mol of HBr is added to 1.0 L of a solution that is 0.5 M in both HCN and NaCN.**
   - Acids: (empty)
   - Bases: (empty)
   - Other: (empty)

**Diagrams/Graphs Explanation:**

To the right of the table, there is a vertical layout that displays various symbols typically indicating different functionalities such as button icons. The specific symbols present, from top to bottom, are as follows:
- A rectangle with a cross inside: This generally symbolizes deletion, cancellation, or clearing an entry.
- A circular arrow forming a counterclockwise loop: This indicates redoing a specific action.
- Several vertically stacked rectangles of identical size within another larger rectangle: This could imply an action related to multiple inputs or entries.

These symbols aid in user navigation or functionality within an interactive module or question setting.

**Educational Task:**

For this educational exercise, users are expected to analyze the given chemical scenarios and correctly identify the resulting major species at equilibrium, classifying them into acids, bases, or neutral (other) species, while considering HCN's nature as a weak acid.
Transcribed Image Text:**Preparation of Aqueous Solutions and Equilibrium Species** The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HCN is a weak acid. **Solution Descriptions and Entries:** 1. **1 mol of KOH is added to 1.0 L of a 0.7 M HCN solution.** - Acids: (empty) - Bases: (empty) - Other: (empty) 2. **0.07 mol of HBr is added to 1.0 L of a solution that is 0.5 M in both HCN and NaCN.** - Acids: (empty) - Bases: (empty) - Other: (empty) **Diagrams/Graphs Explanation:** To the right of the table, there is a vertical layout that displays various symbols typically indicating different functionalities such as button icons. The specific symbols present, from top to bottom, are as follows: - A rectangle with a cross inside: This generally symbolizes deletion, cancellation, or clearing an entry. - A circular arrow forming a counterclockwise loop: This indicates redoing a specific action. - Several vertically stacked rectangles of identical size within another larger rectangle: This could imply an action related to multiple inputs or entries. These symbols aid in user navigation or functionality within an interactive module or question setting. **Educational Task:** For this educational exercise, users are expected to analyze the given chemical scenarios and correctly identify the resulting major species at equilibrium, classifying them into acids, bases, or neutral (other) species, while considering HCN's nature as a weak acid.
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