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Determine the amount of 'CaCl2(i=2.47)' ...

Determine the amount of 'CaCl_2(i=2.47)' dissolved in 2.5 litre of water such that its osmotic pressure is '0.75 atm' at '27^circ C'

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Knowledge Check

  • The molal b.pconstant '(fK_h)' for water is '0.513^circ C' kgmol". When 0.1 mole of sugar is dissolved 'in '200 ~g' of water, the solution boils under a pressure of 1 atm. At

    A
    '100.513^circ C'
    B
    vapour pressure
    C
    '100.256^circ C'
    D
    '101.025^circ C'

  • Two solutions of glucose have osmotic pressures 1.5 and 2.5 atm. 1 litre of first solution is mixed with 2 litre of second solution. The osmotic pressure of the resultant solution will be:

    A
    1.62 atm
    B
    6.12 atm
    C
    1.26 atm
    D
    2.16 atm

  • 1 mole of H_(2) at 47^(@)C and at pressure 4 atmosphere is mixed with 2 mole of N_(2) at 127^(@)C and at 5 atmosphere such that the volume of their mixture is the sum of their initial volumes. If the mixture is at temperature 97^(@)C , pressure of the mixture will be nearly:

    A
    2.2 atm
    B
    3.4 atm
    C
    4.6 atm
    D
    1.8 atm

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    18 g of glucose is dissolved in 178.2 g of water. The vapour pressure of the solution at 100^(@)C is (vapour pressure of pure water at 100^(@)C is 760 mm Hg).

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