Oxygen is more soluble in water than nitrogen is. Water in equilibrium with air contains approximately 1 molecule of dissolved O
2 for every 2 molecules of N
2, 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 °C than at 20 °C (7.6 mg·L−1). At 25 °C 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 °C the solubility increases to 9.0 mL (50% more than at 25 °C) per liter for water and 7.2 mL (45% more) per liter for sea water.
How much oxygen is found is a liter of fresh water under normal conditions?
6.04 milliliters 6.04 milliliters 6.04 milliliters 6.04 milliliters 6.04 milliliters
At 25 °C 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 twenty-five degC and one standard atmosphere (one hundred one point three kPa) of air, freshwater contains about six point four milliliters (mL) of oxygen per liter, whereas seawater contains about four point ninety-five mL per liter.
How much oxygen is found is a liter of fresh water under normal conditions?