Question

20 multiple choice 1 point which salt is least soluble at 10 °c? nacl nano₃ kclo₃ kcl clear my selection

Explanation:

Step1: Recall solubility data

Solubility of salts varies with temperature. At 10°C, the solubility of $NaCl$ is around 35.8 g/100 g of water, solubility of $NaNO_3$ is around 80.8 g/100 g of water, solubility of $KClO_3$ is around 5.0 g/100 g of water and solubility of $KCl$ is around 31.0 g/100 g of water.

Step2: Compare solubilities

Comparing the values, we see that $KClO_3$ has the lowest solubility value among them at 10°C.

Answer:

C. $KClO_3$