A barometer is filled with a cylindrical column of mercury that is $76.0$ $cm$ high and $1.0$ $cm$ in diameter. If the density of mercury is $13.53$ $g$$/$$cm^3$, what is the mass of mercury in the column?

Md Ariful Islam

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Md Ariful Islam

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We need to (i) find the volume of mercury; and (ii) convert this volume into a mass by use of the quoted .

$"Volume of mercury"$ $=$ $76.0*cmxxpixx(0.5*cm)^2$ $=$ $59.7$ $cm^3$. (Here we work out the volume of the mercury cylinder.)

Now that we have the volume, it is a simple matter to find the mass by multiplying the volume by the density:

$59.7$ $cancel(cm^3)$ $xx$ $13.53$ $g$ $cancel(cm^-3)$ $=$ $??$ $g$

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