A mass of 10 g of sodium nitrate is dissolved in 10cm3 of water at 80 degrees (c). As the solution is cooled, at what temperature will a precipitate first appear?
I don't have the solubility tables nor a graph for that data; you must have that in your text/notes. If you will post that I can help you through it
To determine the temperature at which a precipitate first appears when a solution is cooled, we need to know the solubility of sodium nitrate in water at different temperatures.
To find this information, we can refer to a solubility chart or a database of solubility data. One such database is the International Union of Pure and Applied Chemistry (IUPAC) Solubility Data Series, which provides reliable solubility data for various compounds.
By accessing the IUPAC Solubility Data Series, we can obtain the solubility of sodium nitrate in water at different temperatures. The data usually includes the amount of sodium nitrate that can be dissolved in a given amount of water at each temperature.
Using this information, we need to identify the temperature at which the solubility of sodium nitrate in water is exceeded by the amount dissolved in the initial solution. This will be the temperature at which a precipitate first appears.
However, since I am an AI text-based model, I don't have direct access to the internet or real-time data. Therefore, I cannot provide you with the exact temperature at which a precipitate will first appear for your specific scenario. I recommend referring to a reliable solubility data source, such as the IUPAC Solubility Data Series, to find the specific solubility values and determine the temperature at which a precipitate will occur.