When the isotonic saline solution described in part A is connected to an unknown

Question

When the isotonic saline solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. Based on this information, what can be said about these two solutions? The unknown solution had the higher concentration. The unknown solution had the lower concentration. The two solutions have the same concentration.

Parte 2
Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The osmotic pressures required for this process can be as high as 18.1atm . What would the molar concentration of the tree sap have to be to achieve this pressure on a day when the temperature is 25?C ? When the isotonic saline solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. Based on this information, what can be said about these two solutions? The unknown solution had the higher concentration. The unknown solution had the lower concentration. The two solutions have the same concentration.

Parte 2
Osmosis is the process responsible for carrying nutrients and water from groundwater supplies to the upper parts of trees. The osmotic pressures required for this process can be as high as 18.1atm . What would the molar concentration of the tree sap have to be to achieve this pressure on a day when the temperature is 25?C ?

Explanation / Answer

Part-1 The unknown solution had the higher concentration

Part-2 We know P=CRT

C=P/RT

C=18.1/(0.0821*298)

=0.739 M

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