Let’s express the volume of a glass in cubic meters:
V = 1 l = 0.001 m ^ 3.
Mercury mass m = ρV, where ρ is density (13600 kg / m3), V is volume.
Substitute the values:
m = 13600 kg / m ^ 3 * 0.001 m ^ 3 = 13.6 kg.
A liter glass holds 13.6 kg of mercury, and 6.8 kg will only take half a glass.
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