The density of mercury is 13.54 g/cm3. Suppose you need 40 gm of mercury for an experiment. What volume of mercury do you need?

volume(cm^3) = mass(g) / density(g/cm^3)

v = 40g / 13.54g/cm^3 = 2.95cm^3

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2.95 541.60 cm

To find the volume of mercury needed, we can use the formula:

Volume = Mass / Density

In this case, the mass is given as 40 grams and the density of mercury is 13.54 g/cm³.

1. Substitute the given values into the formula:
Volume = 40 g / 13.54 g/cm³

2. Calculate the volume:
Volume = 2.954 cm³ (rounded to three decimal places)

Therefore, you would need approximately 2.954 cm³ of mercury for the experiment.