Let's evaluate the statements based on the general principles of solubility and how temperature affects it:
A. With the reduction in energy within the water, the capacity of each solid to dissolve increased.
- This statement is generally inaccurate. Typically, a reduction in temperature (lower energy) decreases the solubility of most solids in water, not increases it. Therefore, this statement is false.
B. At 30°C, potassium chloride dissolved better than ALL the other solids in the experiment.
- To determine the accuracy of this statement, we would need to refer to the graph with exact data. However, if potassium chloride does have the highest solubility at 30°C compared to sodium chloride and potassium chlorate, then the statement is true. Without specific data from the graph, we cannot definitively conclude if it's true or false.
C. At 50°C, more sodium chloride dissolved in 100 mL of water than potassium chlorate.
- Again, the determination of this statement's accuracy requires data from the graph. If the graph indicates that the quantity of sodium chloride that dissolved at 50°C is greater than that of potassium chlorate, this statement would be true; otherwise, it is false.
D. With the elevation of water temperature, an increased amount of grams from each solid dissolved.
- This statement is generally true for many solids, as solubility often increases with temperature. However, it can vary by specific solute. If the graph supports that all three solids (sodium chloride, potassium chloride, potassium chlorate) exhibited increased solubility with temperature increases, then this statement is accurate.
In summary:
- A: False
- B: True or False depending on graph data
- C: True or False depending on graph data
- D: Likely True based on common trends in solubility, pending data from the graph.
1 answer