Question

18 multiple choice 1 point which salt has the greatest increase of solubility from 30°c to 60°c? kclo3 k2cr2o7 nano3 nacl clear my selection

Explanation:

Step1: Recall solubility - temperature data

Typically, we need to refer to solubility - temperature graphs or tables for these salts. For $KClO_3$, its solubility increases significantly with temperature. For $K_2Cr_2O_7$, it also has a good increase in solubility with temperature. $NaNO_3$ has a high solubility and a large increase in solubility with temperature. $NaCl$ has a relatively small change in solubility with temperature.

Step2: Compare the increases

Among them, $NaNO_3$ usually shows one of the largest increases in solubility over the given temperature range from $30^{\circ}C$ to $60^{\circ}C$ compared to the other salts.

Answer:

NaNO₃