A pycnometer is such a tool. It is a carefully calibrated glass container with a close-fitting stopper. Since the volume is accurately known, a simple mass balance may be used to determine the mass of your unknown liquid. There are also techniques available for measuring the density of a non-soluble powder, using the same apparatus. In normal use, the pycnometer is filled with your unknown fluid, and weighed. Then the device is cleaned thoroughly of any residue, and a reference fluid such as water or mercury is used to fill the pycnometer. Simple arithmetic suffices to work out the density of the unknown material. Sometimes called the 'specific gravity bottle'.
pycnometer technique involves the intrusion of a non-wetting liquid at high pressure into a material through the use of a porosimeter. Porosimetry is an analytical technique used to determine various quantifiable aspects a materials porous nature, such as pore diameter, total proe volume, surface area, bulk density, true density etc. you can read more in the related link
The other name for polystyrene is Styrofoam.
The other name for the outer core is the metallic outer core.
Density is typically measured using a device called a hydrometer or by using the formula density = mass/volume. Other methods include using a pycnometer, which is a specialized flask used for measuring volume, or a balance to measure mass.
To properly use a pycnometer for measuring the density of a substance, first clean and dry the pycnometer. Then, weigh the empty pycnometer and record the mass. Fill the pycnometer with the substance, making sure there are no air bubbles. Weigh the filled pycnometer and record the mass. Calculate the density using the formula: density (mass of substance)/(volume of pycnometer).
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A pycnometer is an instrument used to measure the density or specific gravity of liquids and solids. To use it, first fill the pycnometer with the liquid or solid sample, ensuring there are no air bubbles. Then, weigh the pycnometer with the sample and record the mass. Finally, calculate the density by dividing the mass of the sample by the volume of the pycnometer, which is typically calibrated and known.
1000-1048: Pycnometer: Abū Rayhān al-Bīrūnī
The pycnometer method is more accurate than the hydrometer method because it uses an analytical balance.
According to the Wikipedia article on the gas pycnometer, the first patent was filed by John E. Shea on 13 Nov 1978 and it was issued on 08 Apr 1980.
A. M. Geddis has written: 'Rapid estimate of solid volume in large tuff cores using a gas pycnometer' -- subject(s): Sampling, Soils, Volcanic ash, tuff, Pycnometer
A pycnometer consists of a glass or metal container with a precise volume, a stopper or lid to seal the container, and a thermometer to measure the temperature of the liquid being tested. It may also have a hook or loop for suspending it in a fluid to measure its specific gravity.
Oh, dude, the shape of the pycnometer cap is conical because it allows for easy pouring and minimizes spillage when you're filling it up with liquid. Plus, the conical shape helps to create a tight seal, preventing any leaks or evaporation. So, like, it's basically designed to make your life easier when you're measuring the density of a substance.
Take G-DenPyc 2900 as an example: step 1. weight sample mass; step 2. put sample into sample chamber; step 3. cover sample chamber and switch gas on; step 4. input sample mass into analyzer software and click "start" to operation; step 5. about 5 mins to wait sample results.
A conical cap is provided to a pscnometer to determine the volume of the test sample.
Density is the ratio beween the mass and the volume.Many devices exist in laboratory do determine the density: special analytical balance, pycnometer, helium pycnometer, densimeter (for liquids), electronic densimeter (for liquids) etc.; for perfect geometrical shapes the measurement of dimensions-calculation of volume-weighing are sufficient.