1.

What is the concentration of dissolved oxygen at 25^(o)C at 1 atm pressure if partial pressure of oxygen in 0.22 atm?(K_(H) = 1.3 xx 10^(-3)" mol "dm^(-3) atm^(-1))

Answer»

<P>`2.86 XX 10^(-4) M`
`5,9 xx 10^(-3)M`
`1.7 xx 10^(-4)`
zero

Solution :A/c. to Henry's law
`S = K xx P`
`= 1.3 xx 10^(-3) xx 0.22`
`= 2.86 xx 10^(-4) "mol" dm^(-3)`
`=2.86 xx 10^(-4) M`


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