Oxygen is more soluble in water than nitrogen is. Water in equilibrium with air contains approximately 1 molecule of dissolved O2 for every 2 molecules of N2, compared to an atmospheric ratio of approximately 1:4. The solubility of oxygen in water is temperature-dependent, and about twice as much (14.6 mg*L-1) dissolves at 0 degC than at 20 degC (7.6 mg*L-1). At 25 degC and 1 standard atmosphere (101.3 kPa) of air, freshwater contains about 6.04 milliliters (mL) of oxygen per liter, whereas seawater contains about 4.95 mL per liter. At 5 degC the solubility increases to 9.0 mL (50% more than at 25 degC) per liter for water and 7.2 mL (45% more) per liter for sea water.
Upon what chemical characteristic is oxygen's solubility dependent? How much oxygen is found is a liter of fresh water under normal conditions? In what type of water does oxygen dissolve more slowly? How much more oxygen dissolves at 0 degrees C than at 20 degrees C?
temperature 6.04 milliliters seawater twice
The solubility of oxygen in water is temperature-dependent, and about twice as much (14.6 mg*L-1) dissolves at 0 degC than at 20 degC (7.6 mg*L-1). At 25 degC and 1 standard atmosphere (101.3 kPa) of air, freshwater contains about 6.04 milliliters (mL) of oxygen per liter, whereas seawater contains about 4.95 mL per liter. At 25 degC and 1 standard atmosphere (101.3 kPa) of air, freshwater contains about 6.04 milliliters (mL) of oxygen per liter, whereas seawater contains about 4.95 mL per liter. The solubility of oxygen in water is temperature-dependent, and about twice as much (14.6 mg*L-1) dissolves at 0 degC than at 20 degC (7.6 mg*L-1).
Oxygen