The partial pressure of O2 in your lungs varies from 25 mm
Hg to 40 mm Hg. What mass of O2 can dissolve in 1.0L OF water at 25.0oC when
the O2 partial pressure is 40. mm Hg? Since the normal Water solubility of
oxygen at 25oC and pressure = 1 bar is at 40 mg/L water, the partial pressure
is only40 mmg Hg
Mass of 02 dissolve = (40 mmHg/760 mmHg)*( 40 mg/L) (1 L)
=2.10 mg O2 dissolved
Answer:
Vital
Explanation:
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The balanced chemical reaction is:
<span>Ca + Cl2 = CaCl2
</span>
We are given the amount of calcium metal to be used for this reaction. This will be the starting point for the calculations.
56 g Ca ( 1 mol Ca / 40.08 g Ca) (1 mol Cl2 / 1 mol Ca) ( 22.414 L Cl2 / 1 mol Cl2 ) = 31.32 L Cl2 gas produced from the reaction
Answer:
70
Explanation:
20 x 5 vials = 100mg
therefore 5 vials required each day.
Two weeks = 14 days
14 days x 5 vials = 70 vials
