To determine the type of solute in the given solution based on the provided table of temperatures and concentrations, follow these steps:
1. Analyze the given data:
- Temperature ([tex]$^{\circ}C$[/tex]): 20.5, 30.1, 40.3, 51.0
- Concentration (g solute/mL solvent): 0.772, 0.835, 1.03, 1.09
2. Observe the trend in concentrations as temperature increases:
When we examine the concentration values:
- At 20.5°C, the concentration is 0.772
- At 30.1°C, the concentration is 0.835
- At 40.3°C, the concentration is 1.03
- At 51.0°C, the concentration is 1.09
We see that the concentration increases as the temperature increases.
3. Determine the type of solute based on the trend:
- For a solid solute, the solubility (amount dissolved) typically increases as the temperature increases.
- For a gas solute, the solubility (amount dissolved) typically decreases as the temperature increases.
4. Conclusion:
Since the concentration increases with an increase in temperature, it indicates that the solute is a solid.
Therefore, the correct statement is:
- The solute is a SOLID because the amount dissolved INCREASES as temperature increases.