312. Water flows from the roots to the leaves of the crown of trees due to osmosis. What should be the minimum osmotic pressure in the cell sap so that groundwater can rise to a crown height of 25 m? What should be the molar concentration of cell sap for such a pressure to develop. (Take a temperature of 25 ° C, a density of water of 1.00 g/cm3; for clarity, translate the resulting pressure into atmospheres)

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