What is the pressure (in millimeters of mercury) inside a container of a gas connected to an open-end manometer when the level in the arm connected to the container is 203.3 mm in height lower than the level in the arm open to the atmosphere? Atmospheric pressure is 757.1 mm Hg and the density of mercury is 13.546 g/mL.

See explanation below

Explanation:

In this case, you just need to apply the following expression:

Pc = Patm + h + d1/d2

Where:

Pc: Pressure of container

Patm: Atmospherical pressure

h: height of the arm of manometer

d1: density of gas

d2: density of mercury

You are not providing the density of the gas which is filled the container, so, let's assume we are filling this with hexane (d = 0.65 g/mL)

We have all in mm Hg so we just need to apply the above expression:

Pc = 757.1 + 203.3 * (0.65/13.546)

Pc = 757.1 + 9.7553

Pc = 766.8553 mmHg

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