The partial pressure of o2 in air at sea level is 0.21atm. the solubility of o2 in water at 20βc, with 1 atm o2 pressure is 1.38Γ10β3 m. part a using henry's law, calculate the molar concentration of o2 in the surface water of a mountain lake saturated with air at 20 βc and an atmospheric pressure of 665 torr . express your answer using two significant figures. nothing
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Chemistry, 22.06.2019 15:30
What best discribes the relationship between wavelength and frequency in a electromagnetic wave
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Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.
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Chemistry, 22.06.2019 18:00
Which three statements represent the benefits of performing experiments using computer simulations?
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The partial pressure of o2 in air at sea level is 0.21atm. the solubility of o2 in water at 20βc, wi...
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