How much does one liter of Hg weigh?

Answer 1

Need more info? In order to find out how much mass "weight" is in one liter of compressed hydrogen you need to know what pressure and temperature the hydrogen is at, basic thermodynamic. For example hydrogen at one ATM (atmosphere or pressure at sea level) and at room temp has a density of around .09 Kg/m3 and Liquid Hydrogen at one ATM (-423 deg F, cold enough to literally freeze air) has a density of 70 Kg/m3 , which differs by a factor of 777.

Answer 2

To determine the weight of one liter of Hg (Mercury) you have to also specify the temperature, pressure, and gravitational field the Hg is subject to. For the purposes of this answer, I am assuming Hg at the NIST standard temperature and pressure (20°C and 100 kPa) and subject to a gravitational acceleration of 9.80665 m/s2, which is the standard for terrestrial gravitational acceleration (acceleration by earth gravity) established by the 3rd General Conference on Weights and Measures.

Under these conditions, Hg will be a liquid with a density of 13.54562 g/cm3 so 1 liter (1000 cm3) would have a mass of 13545.62 g or 13.54562 kg. Subjected to earth gravity, this would have a weight of 132.8372 Newtons (kg·m/s2) or about 29.863 lbf.

Answer 3

A foot is 3.048 dm; a liter is a cubic decimeter. Therefore, a cubic foot of ANYTHING is 3.0483 liters (about 28 liters). It doesn't matter whether it is compressed hydrogen, or any other substance; both liters and cubic feet are measures of volume.

Answer 4

The density of liquid helium-4 at its boiling point and 1 ATM is approximately 0.125 g/mL.

1Liter would weigh around 125 grams or 4.4 oz.