The freezing point of water is 0.00 °C at 1 atmosphere. A student dissolves 13.51 grams of potassium sulfide, K₂ S (110.3 g/mol), in 154.0 grams of water. Use the table of boiling and freezing point constants to answer the questions below. Formula Kb (°C/m) Kf(°C/m) 0.512 Solvent H₂O CH3 CH₂OH Water Ethanol Chloroform CHCl3 Benzene C6H6 Diethyl 1.22 3.67 2.53 CH₂ CH₂ OCH₂ CH3 2.02 1.86 1.99 5.12

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The image contains a table that lists various solvents along with their formulas and values for boiling point elevation (\(K_b\)) and freezing point depression (\(K_f\)). Below the table, there are fill-in-the-blank statements for calculating the molality and freezing point of a solution.

**Table:**

| Solvent       | Formula                | \(K_b\) (°C/m) | \(K_f\) (°C/m) |
|---------------|------------------------|----------------|----------------|
| Water         | \(H_2O\)               | 0.512          | 1.86           |
| Ethanol       | \(CH_3CH_2OH\)         | 1.22           | 1.99           |
| Chloroform    | \(CHCl_3\)             | 3.67           |                |
| Benzene       | \(C_6H_6\)             | 2.53           | 5.12           |
| Diethyl ether | \(CH_3CH_2OCH_2CH_3\)  | 2.02           |                |

**Statements:**

- The molality of the solution is \( \_\_\_\_\_\_ \) m.
- The freezing point of the solution is \( \_\_\_\_\_\_ \) °C.
Transcribed Image Text:The image contains a table that lists various solvents along with their formulas and values for boiling point elevation (\(K_b\)) and freezing point depression (\(K_f\)). Below the table, there are fill-in-the-blank statements for calculating the molality and freezing point of a solution. **Table:** | Solvent | Formula | \(K_b\) (°C/m) | \(K_f\) (°C/m) | |---------------|------------------------|----------------|----------------| | Water | \(H_2O\) | 0.512 | 1.86 | | Ethanol | \(CH_3CH_2OH\) | 1.22 | 1.99 | | Chloroform | \(CHCl_3\) | 3.67 | | | Benzene | \(C_6H_6\) | 2.53 | 5.12 | | Diethyl ether | \(CH_3CH_2OCH_2CH_3\) | 2.02 | | **Statements:** - The molality of the solution is \( \_\_\_\_\_\_ \) m. - The freezing point of the solution is \( \_\_\_\_\_\_ \) °C.
The freezing point of water is 0.00 °C at 1 atmosphere.

A student dissolves 13.51 grams of potassium sulfide, K₂S (110.3 g/mol), in 154.0 grams of water. Use the table of boiling and freezing point constants to answer the questions below.

| Solvent       | Formula       | \(K_b\) (°C/m) | \(K_f\) (°C/m) |
|---------------|---------------|----------------|----------------|
| Water         | H₂O           | 0.512          | 1.86           |
| Ethanol       | CH₃CH₂OH      | 1.22           | 1.99           |
| Chloroform    | CHCl₃         | 3.67           | —              |
| Benzene       | C₆H₆          | 2.53           | 5.12           |
| Diethyl ether | CH₃CH₂OCH₂CH₃ | 2.02           | —              |

This table provides the boiling point elevation (\(K_b\)) and freezing point depression (\(K_f\)) constants for various solvents. These constants are used in calculations to determine the changes in boiling and freezing points when a solute is dissolved in a solvent.
Transcribed Image Text:The freezing point of water is 0.00 °C at 1 atmosphere. A student dissolves 13.51 grams of potassium sulfide, K₂S (110.3 g/mol), in 154.0 grams of water. Use the table of boiling and freezing point constants to answer the questions below. | Solvent | Formula | \(K_b\) (°C/m) | \(K_f\) (°C/m) | |---------------|---------------|----------------|----------------| | Water | H₂O | 0.512 | 1.86 | | Ethanol | CH₃CH₂OH | 1.22 | 1.99 | | Chloroform | CHCl₃ | 3.67 | — | | Benzene | C₆H₆ | 2.53 | 5.12 | | Diethyl ether | CH₃CH₂OCH₂CH₃ | 2.02 | — | This table provides the boiling point elevation (\(K_b\)) and freezing point depression (\(K_f\)) constants for various solvents. These constants are used in calculations to determine the changes in boiling and freezing points when a solute is dissolved in a solvent.
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