Consider the following data on some weak acids and weak bases: name acid nitrous acid hydrocyanic acid solution 0.1 M KNO3 0.1 MC₂HsNH Br 0.1 M NaNO₂ Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. K₂ formula HNO₂ 4.5 x 104 HCN 4.9 x 10 10 0.1 M C₂H5NH₂Cl PH choose one choose one choose one choose one base K₂ formula ethylamine C₂H5NH₂ 6.4 x 104 aniline C6H5NH₂ 4.3 x 10" 10 name

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# Predicting the Quantitative Acid-Base Properties of Salts

## Consider the following data on some weak acids and weak bases:

### Acids
| Name           | Formula | Kₐ        |
|----------------|---------|-----------|
| Nitrous acid   | HNO₂    | \(4.5 \times 10^{-4}\) |
| Hydrocyanic acid | HCN    | \(4.9 \times 10^{-10}\)|

### Bases
| Name        | Formula | K_b        |
|-------------|---------|------------|
| Ethylamine  | C₂H₅NH₂ | \(6.4 \times 10^{-4}\) |
| Aniline     | C₆H₅NH₂ | \(4.3 \times 10^{-10}\) |

## Instructions
Use these data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on.

### Solutions and pH Selection
1. 0.1 M KNO₂  - [Choose one]
2. 0.1 M C₂H₅NH₃Br - [Choose one]
3. 0.1 M NaNO₂ - [Choose one]
4. 0.1 M C₆H₅NH₃Cl - [Choose one]

## Controls
- Explanation [Button]
- Check [Button]

This content guides users in ranking the given solutions based on pH by utilizing the provided acid and base dissociation constants.
Transcribed Image Text:# Predicting the Quantitative Acid-Base Properties of Salts ## Consider the following data on some weak acids and weak bases: ### Acids | Name | Formula | Kₐ | |----------------|---------|-----------| | Nitrous acid | HNO₂ | \(4.5 \times 10^{-4}\) | | Hydrocyanic acid | HCN | \(4.9 \times 10^{-10}\)| ### Bases | Name | Formula | K_b | |-------------|---------|------------| | Ethylamine | C₂H₅NH₂ | \(6.4 \times 10^{-4}\) | | Aniline | C₆H₅NH₂ | \(4.3 \times 10^{-10}\) | ## Instructions Use these data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. ### Solutions and pH Selection 1. 0.1 M KNO₂ - [Choose one] 2. 0.1 M C₂H₅NH₃Br - [Choose one] 3. 0.1 M NaNO₂ - [Choose one] 4. 0.1 M C₆H₅NH₃Cl - [Choose one] ## Controls - Explanation [Button] - Check [Button] This content guides users in ranking the given solutions based on pH by utilizing the provided acid and base dissociation constants.
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