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if 1 mol of solute particles raises the boiling point of 1 kg of solvent by 3.63 degrees Celsius then calculate the approximate concentration of the solution in mol/kg, ?

at 23°C and 1.00 atm A sealed balloon is filled with 1.00 L helium . The balloon rises to a point in the atmosphere where the the temperature is -34°C and pressure is 240. torr . determine the volume change of the ballon when it ascends from 1 atm pressure to 240 torr pressure ?

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