A mercury manometer is used to measure the pressure of a confined sample of gas in a bulb, as shown in the figure below. Atmospheric pressure is 735 torr and the temperature is 23 oC.   If this is a closed-end manometer and h = 10.7 cm, what is the pressure of the gas in the bulb (in torr)?  torr If this is an open-end manometer and h = 10.7 cm, what is the pressure of the gas in the bulb (in torr)?  torr

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.