If you have two containers with water, one with water at 25 degrees C and the second with water 75 degrees C, explain in which one would you be able to dissolve less CO2 (a gas)? Explain in which one you would be able to dissolve more NaCl (check the solubility curve)?
Most gases are more soluble in cold water than in hot water. CO2 is the carbonation used in soft drinks. Think about that as a way of helping answer the question. For the NaCl part, I suggest you consult the solubility curve. I don't have that.
Would the container with 25 C dissolve less CO2?
Read my first response, especially the first sentence. It tells you that most gases are more soluble in cold water than in hot water. Which container is hot and which is colder?
So, because gases are more soluble in cold water than hot water, the CO2 will dissolve less in the container with 75 C.
right.
To determine which container would be able to dissolve less CO2 gas and which one would be able to dissolve more NaCl, we need to consider the concept of solubility and its relationship with temperature.
Solubility is the ability of a substance to dissolve in a solvent, usually expressed in terms of how much of the substance can dissolve in a given amount of solvent at a specific temperature. Different substances have different solubilities under different conditions.
Let's start with the first part of the question: which container would be able to dissolve less CO2 gas. In general, the solubility of gases decreases with increasing temperature. This means that as the temperature of the water increases, its ability to dissolve gases decreases. Therefore, in this case, the water at 75 degrees C would be able to dissolve less CO2 gas compared to the water at 25 degrees C.
Moving on to the second part of the question: which container would be able to dissolve more NaCl based on the solubility curve. The solubility of solid substances like NaCl typically increases with increasing temperature. To determine the solubility of NaCl at different temperatures, we can refer to a solubility curve, which plots the maximum amount of solute (in this case, NaCl) that can be dissolved in a given amount of solvent (water) at different temperatures.
If you have access to a solubility curve for NaCl, you can look up the solubility value (grams of NaCl per 100 grams of water) at the specific temperatures of 25 degrees C and 75 degrees C. Based on the curve, you can compare the solubilities at these two temperatures. Generally, the higher the temperature, the greater the solubility of NaCl in water.
In summary:
- The water at 75 degrees C would be able to dissolve less CO2 gas compared to the water at 25 degrees C.
- To determine which container would be able to dissolve more NaCl, refer to a solubility curve for NaCl and compare the solubilities at 25 degrees C and 75 degrees C. Generally, the higher the temperature, the greater the solubility of NaCl in water.