### Weak Acids and Weak Bases Data#### Acid Information:| **Name** | **Formula** | \( K_a \) ||-------------------|-------------|------------------|| Nitrous Acid | HNO₂ | \( 4.5 \times 10^{-4} \) || Hydrocyanic Acid | HCN | \( 4.9 \times 10^{-10} \) |#### Base Information:| **Name** | **Formula** | \( K_b \) ||----------------|-------------|------------------|| Hydroxylamine | HONH₂ | \( 1.1 \times 10^{-8} \) || Methylamine | CH₃NH₂ | \( 4.4 \times 10^{-4} \) |### Ranking Solutions by pHUse the provided data to rank the following solutions in order of increasing pH. Select '1' for the solution with the lowest pH, '2' for the next lowest, and so on.#### Solutions to Rank:| **Solution** | **pH** ||--------------------|----------------|| 0.1 M HONH₃Br | choose one || 0.1 M CH₃NH₃Cl | choose one || 0.1 M NaI | choose one || 0.1 M NaNO₂ | choose one |Use this information to determine the relative acidity or basicity of each solution based on the given \( K_a \) and \( K_b \) values.

Consider the following data on some weak acids and weak bases: name nitrous acid acid -10 hydrocyanic acid HCN 4.9 x 10 0.1 M HONH3Br solution 0.1 M Nal 0.1 M CH3NH3Cl Ka formula HNO₂ 4.5 x 104 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. PH choose one 0 choose one O choose one base choose one Kb formula hydroxylamine HONH₂ 1.1 x 108 name methylamine CH3NH₂ 4.4 x 107 -4

Consider the following data on some weak acids and weak bases: name nitrous acid acid -10 hydrocyanic acid HCN 4.9 x 10 0.1 M HONH3Br solution 0.1 M Nal 0.1 M CH3NH3Cl Ka formula HNO₂ 4.5 x 104 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. PH choose one 0 choose one O choose one base choose one Kb formula hydroxylamine HONH₂ 1.1 x 108 name methylamine CH3NH₂ 4.4 x 107 -4

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

### Weak Acids and Weak Bases Data

#### Acid Information:

| **Name** | **Formula** | \( K_a \) |
|-------------------|-------------|------------------|
| Nitrous Acid | HNO₂ | \( 4.5 \times 10^{-4} \) |
| Hydrocyanic Acid | HCN | \( 4.9 \times 10^{-10} \) |

#### Base Information:

| **Name** | **Formula** | \( K_b \) |
|----------------|-------------|------------------|
| Hydroxylamine | HONH₂ | \( 1.1 \times 10^{-8} \) |
| Methylamine | CH₃NH₂ | \( 4.4 \times 10^{-4} \) |

### Ranking Solutions by pH

Use the provided data to rank the following solutions in order of increasing pH. Select '1' for the solution with the lowest pH, '2' for the next lowest, and so on.

#### Solutions to Rank:

| **Solution** | **pH** |
|--------------------|----------------|
| 0.1 M HONH₃Br | choose one |
| 0.1 M CH₃NH₃Cl | choose one |
| 0.1 M NaI | choose one |
| 0.1 M NaNO₂ | choose one |

Use this information to determine the relative acidity or basicity of each solution based on the given \( K_a \) and \( K_b \) values.

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