8. The diagram below illustrates an osmotic pressure experiment involving two solutions, 0.10 M aqueous NaCl and 0.15 M aqueous glucose (C6H12O6), at the same temperature. The semipermiable barrier only allows water to pass through. At the start (left diagram) equal volumes of the two solutions were placed in the apparatus. After a while the result on the right diagram was seen. Which of the two solutions was added on the left side of the apparatus? U Group of answer choices 0.15 M glucose impossible to tell 0.10 M NACI 5

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### Osmotic Pressure Experiment

#### Experiment Description
This experiment demonstrates the principles of osmotic pressure using two solutions: 0.10 M aqueous NaCl and 0.15 M aqueous glucose (C₆H₁₂O₆). Both solutions are at the same temperature. The apparatus utilized has a semipermeable barrier that only permits the passage of water molecules.

#### Procedure
1. **Initial State**:
    - The left diagram shows the initial setup with equal volumes of the two solutions placed on either side of the semipermeable barrier in a U-tube apparatus.

2. **Observation**:
    - Over time, osmotic pressure causes a shift as water moves through the semipermeable membrane to balance solute concentration.

#### Diagram Explanation

**Initial Diagram (Left):**
- Both arms of the U-tube contain equal volumes of solution, indicated by the same water levels on both sides.

**Final Diagram (Right):**
- The water level on one side of the U-tube is elevated, while it is lowered on the other side, signifying a shift due to water movement through the semipermeable membrane.

#### Question
Which of the two solutions was added on the left side of the apparatus?

##### Group of Answer Choices:
- 0.15 M glucose
- impossible to tell
- 0.10 M NaCl

#### Analysis
Given the movement of water as indicated by the height difference in the final state, determine which solution induces the observed osmotic pressure change.

Please select the appropriate answer based on your analysis.
Transcribed Image Text:### Osmotic Pressure Experiment #### Experiment Description This experiment demonstrates the principles of osmotic pressure using two solutions: 0.10 M aqueous NaCl and 0.15 M aqueous glucose (C₆H₁₂O₆). Both solutions are at the same temperature. The apparatus utilized has a semipermeable barrier that only permits the passage of water molecules. #### Procedure 1. **Initial State**: - The left diagram shows the initial setup with equal volumes of the two solutions placed on either side of the semipermeable barrier in a U-tube apparatus. 2. **Observation**: - Over time, osmotic pressure causes a shift as water moves through the semipermeable membrane to balance solute concentration. #### Diagram Explanation **Initial Diagram (Left):** - Both arms of the U-tube contain equal volumes of solution, indicated by the same water levels on both sides. **Final Diagram (Right):** - The water level on one side of the U-tube is elevated, while it is lowered on the other side, signifying a shift due to water movement through the semipermeable membrane. #### Question Which of the two solutions was added on the left side of the apparatus? ##### Group of Answer Choices: - 0.15 M glucose - impossible to tell - 0.10 M NaCl #### Analysis Given the movement of water as indicated by the height difference in the final state, determine which solution induces the observed osmotic pressure change. Please select the appropriate answer based on your analysis.
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