If air contains 78% nitrogen by volume, what is the solublitiy of nitrogen in water at 25°c?
how does the solubility of nitrogen depend on its concentration in air?
Is this at 1 atm pressure?
Then p N2 is 1 x 0.78 = 0.78 atm
KH = C/p
6.1E-4 = C/0.78
C is in molar or mols/L.
To find the solubility of nitrogen in water at 25°C, you need to refer to a solubility chart or table that provides the solubility data for different substances at different temperatures.
One commonly used source of solubility data is the CRC Handbook of Chemistry and Physics. However, using an online database or a reference book specific to solubility data would also work.
Here is a step-by-step guide on how to find the solubility of nitrogen in water at 25°C using the CRC Handbook of Chemistry and Physics:
1. Locate the solubility section: In the CRC Handbook of Chemistry and Physics, there is usually a dedicated section for solubility data. Look for a table or chart that provides solubility information at different temperatures.
2. Find the nitrogen entry: Scan through the table or chart to locate the nitrogen entry. The solubility data is usually given in grams of solute (nitrogen) dissolved in 100 grams of solvent (water).
3. Look for the data at 25°C: Find the row or entry corresponding to 25°C (or the closest temperature available). The data will typically be given in grams of nitrogen dissolved per 100 grams of water.
4. Note down the solubility value: Once you have found the entry for nitrogen at 25°C, note down the solubility value. This will give you the solubility of nitrogen in water at that specific temperature.
Please note that the provided information about the air composition does not directly give the solubility of nitrogen in water. The solubility data must be obtained from appropriate sources.