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))`

Options

A. `2.86 xx 10^(-4) M`
B. `5,9 xx 10^(-3)M`
C. `1.7 xx 10^(-4)`
D. zero

Answer

A

Explanation

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`