Complete the following table, which lists information about the measured acid dissociation constants of three unknown weak acids. Note: be sure each number you put in the table has the correct number of significant digits.
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![**Acid Dissociation Constants Table for Unknown Weak Acids**
Complete the following table, which lists information about the measured acid dissociation constants (Ka) of three unknown weak acids.
**Note:** Ensure each number entered in the table has the correct number of significant digits.
| Acid | \( K_a \) | \( pK_a \) | Relative Strength |
|------|------------|--------|----------------------------|
| A | [Input] | 10.503 | [Choose one] |
| B | \( 3.0 \times 10^{-12} \) | [Input] | [Choose one] |
| C | [Input] | 3.82 | [Choose one] |
**Instructions:**
- Fill in the missing values for \( K_a \) and \( pK_a \) where indicated.
- Use the dropdown menu to select the relative strength of each acid (strong, moderate, weak).
- Ensure all values have the correct number of significant digits to reflect precision in measurement.
**Additional Features:**
- The table includes an input section with a calculation box for entering values.
- The functionality to check answers or read the explanation offers support throughout the task.
The overall aim is to understand and calculate the dissociation constants for acids based on given data, promoting a deeper insight into acid strength in chemistry.
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According to Arrhenius concept, an acid is a substance i.e. when dissolved in water gives H+ ions . Thus Greater the number of H+ ions produced in the aqueous solution, the stronger is the acid.
Greater is the dissociation constant of the weak acid (Ka), greater is the amount of H+ (aq) produced, therefore stronger is the acid. Thus, Ka values give a measure of the relative strengths of the weak acids.
& Also pKa = - log ( Ka )
=> Higher the Ka value of acid , lower will be the value of pKa of acid
When comparing two compounds, the more acidic compound will have a higher Ka and a lower pKa.
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