We are asked to determine how much of the given salts will remain undissolved if 500 g is mixed into a liter of pure water at 40 °C.
We shall refer to books and on the internet regarding the solubilities of these salts.
For Pb(NO3)2. Nitrates are highly soluble in water. Based on the literature, it has a solubility of 720.1 g/L. Therefore, it would be completely dissolved and none would remain when mixed with pure water at 40°C.
For KCl. Based on the literature, it has a solubility of 401 g/L. Therefore, it would not completely dissolve in pure water. The remaining undissolved salt is:
Here are the solubilities of some salts in water. For each salt, determine how much will remain undissolved if 500 g is mixed into a liter of pure water at 40 °C. One significant figure is sufficient in each answer.
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