Question

A prevailing pressure of one standard atmosphere will support a column of mercury 760 mm in height. Liquid n-propyl iodide has a density of 1.75g/mL. The height of a column of n-propyl iodide that one standard atmosphere can support is________ mm.

The density of liquid mercury is 13.6 g/mL.

Answer #1

**form the barometric calculations**

** P = dgh**

**P = pressure**

**d = density**

**h = height**

**now, density of mercury(d1) = 13.6 g/ml**

** g
= gravity = 9.8 m/s^2**

** h = height of
mercury = 760 mm**

** density of n-propyl
iodide(d2) = 1.75 g/ml**

**g = gravity = 9.8 m/s^2
h = height of n-propyl
iodide(h2) = ?**

** d1h1 = d2h2**

**13.6*760 = 1.75*h2**

**h2 = 5906.3 mm**

** = 590.6 cm**

** **

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