Anonymous
Anonymous asked in Science & MathematicsChemistry · 4 weeks ago

It is possible to make a barometer using a liquid other than mercury. What would be the height (in meters) of a column of dichloromethane...?

It is possible to make a barometer using a liquid other than mercury. What would be the height (in meters) of a column of dichloromethane at a pressure of 0.400 atm, given that 0.400 atm is equal to a 0.304 m column of mercury and the densities of mercury and dichloromethane are 13.5 g/cm3 and 1.33 g/cm3, respectively.

A.0.324 m

B.3.09 m

C.2.47 m

D.0.0299 m

E.0.404 m

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3 Answers

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  • DrBob1
    Lv 7
    4 weeks ago

    There's a BIG problem with this problem.  (Repetition intended).  Methylene chloride is a volatile solvent.  (B.P. 39oC)  This means the closed end is under a considerable vapor pressure and - - at room temperature 0.4 atm is above its boiling point  (400mmHg @ 24oC).

    This will not work.

  • 4 weeks ago

    (0.304 m) x (13.5 g/cm^3 / 1.33 g/cm^3) = 3.09 m dichloromethane

    So answer B.

  • 4 weeks ago

    Mercury is 10.15 times the density of dichlor, so the diclhor column will be 10.15 times higher.

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