Question

using the supplied solubility curve diagram, determine which compound listed below is least soluble at 70°c. nacl kcl kno3 nh4cl

Explanation:

Step1: Locate 70°C on solubility - curve

Find the 70°C mark on the x - axis of the solubility curve.

Step2: Read solubility values for each compound

For NaCl, KCl, KNO₃, and NH₄Cl, find the corresponding solubility values on the y - axis by tracing up from 70°C to each compound's curve.

Step3: Compare solubility values

Compare the solubility values of the four compounds at 70°C. The compound with the lowest solubility value is the least soluble.

Answer:

Without the actual solubility - curve data, we can't give a specific compound. But the process is to follow the above steps to compare the solubility values of NaCl, KCl, KNO₃, and NH₄Cl at 70°C on the given solubility curve.