1.

Osmotic pressure of insulin solution at 298K is found to be 0.0072 atm. Hence height of water column due to this osmotic pressure is (density of Hg = 13.6 g cm^(-3))

Answer»

`0.76mm`
`70.28mm`
`74.42mm`
`760MM`

SOLUTION :Pressure = hdg
`P = hdg` (for Hg)
1 atm = 76 MM of Hg
`:. 0.0072` atm `-= 0.0072 xx 760mm` of Hg
`P = 0.0072 xx 760 xx 13.6 xx 9.8` (for Hg)
`P = h xx 1 xx 9.8` (for water) (density of water `= 1g//cm^(3))`
`:. 9.8 xx h = 0.0072 xx 60 xx 13.6 xx 9.8`
`h = 0.0072 xx 760 xx 13.6mm`
`= 74.42 mm`


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