Question

a scientist collects data on the solubility of different salts at different temperatures. the results are shown in the graph. which conclusion is supported by the data in the graph? salt solubility graph salt solubility at various temperatures increasing solubility temperature (°c)

Explanation:

Step1: Observe the graph trends

As the temperature increases, the solubility of $Pb(NO_3)_2$, $KNO_3$, $KCl$ and $NaCl$ generally increases. The solubility of $Ce_2(SO_4)_3$ decreases as the temperature increases.

Step2: Analyze the options (not given here but concept - based)

Based on the upward - sloping lines for most salts, we can conclude that for most of these salts (excluding $Ce_2(SO_4)_3$), solubility increases with temperature.

Answer:

For most of the salts ($Pb(NO_3)_2$, $KNO_3$, $KCl$, $NaCl$) shown in the graph, the solubility increases as the temperature increases, while the solubility of $Ce_2(SO_4)_3$ decreases with an increase in temperature.