At what temperature can you fully dissolve 140g of NaNO_(3)

To determine the temperature at which 140g of $NaNO_{3}$ can fully dissolve, we need to use the solubility curve of $NaNO_{3}$.<br /><br />The solubility curve of $NaNO_{3}$ shows the relationship between the temperature and the maximum amount of $NaNO_{3}$ that can be dissolved in 100g of water.<br /><br />To find the temperature at which 140g of $NaNO_{3}$ can fully dissolve, we need to locate the point on the solubility curve where the amount of $NaNO_{3}$ dissolved is 140g.<br /><br />Based on the solubility curve of $NaNO_{3}$, the temperature at which 140g of $NaNO_{3}$ can fully dissolve is approximately 80°C.<br /><br />Therefore, the temperature at which 140g of $NaNO_{3}$ can fully dissolve is 80°C.