If you know the density of Mercury, you can determine the mass of a specific volume of mercury. Mercury has a density of 13.534g/cm3. 1cm3 = 1mL, so we can restate its density as 13.534g/mL.
Density = mass/volume. If we know any two variables, we can manipulate the density equation to find the third variable. In this case, we know volume and density, so to find the mass, do the following calculation:
Mass = density x volume
Mass Hg = 13.534g/mL x 136mL = 1.84g Hg*
*The answer is limited to 3 significant figures, because 136mL has only 3 significant figures, even though the density has 5 significant figures. When multiplying or dividing, the answer is limited to the same number of significant figures as the measurement with the fewest significant figures used in the calculation.
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Density mercury ≈ 5.43 g/ml. Density alcohol (ethanol) ≈ 0.789 g/ml. mass = density x volume ⇒ mass mercury ≈ 5.43 g/ml x 3.48 ml ≈ 18.90 g ⇒ mass alcohol ≈ 0.789 g/ml x 60.0 ml ≈ 47.34 g ⇒ 60.0 ml of alcohol has more mass than 3.48 ml of mercury.
1 ml = 1 cm3 → density = mass/volume = 739g/55.44ml ≈ 13.33 g/ml = 13.33 g/cm3 = 13.33 gcm-3 (pick your preferred way of writing the units)
This mass is 208,56 g.
No possible to determine without knowing what you are trying to measure. You need to be able to calculate the density of the liquid (e.g. water vs mercury).
Density = Mass/Volume = 0.622... grams per ml