The pressure exerted by a column of liquid is equal to the product of the height of the column times the gravitational constant times the density of the liquid, P= ghd. How high a column of methanol (d = 0.79 g/mL) would be supported by a pressure that supports a 713 mm column of mercury (d = 13.6 g/mL)? 1.2 x 104 mm B 41 mm 713 mm 9.7 x 103 mm E 17 mm

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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.