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Helium is a chemical element with symbol He and atomic number 2. .... Sweden, who collected enough of the gas to accurately determine its atomic weight.

Helium - Weight and Volume Equivalents


Weight of. Liquid or Gas, Volume of. Liquid at. Normal Boiling Point, Volume of Gas at 1 atm. lb, kg, L, gal, cf at 70°F, m<sup>3</sup> at 15°C. 1.000, 0.454, 3.630, 0.959 ...

Helium: How do you weigh a balloon? - Slate


Aug 18, 2014 ... After all, helium floats! If you had a balloon full of helium, and tried to weigh it on a scale, it would float away. If you could somehow tie it to the ...

Convert volume to weight: Helium


Convert helium volume to its weight. See conversion formulas, and volume, weight and density in various measurement units.

Molecular weight of Helium - Convert


Calculate the molar mass of Helium in grams per mole or search for a chemical formula or substance.

Does a tank of helium weigh more or less when empty? - science ...


Empty = full of air? Then it would weigh more. If empty means a vacuum, it would weigh less ...

Lifting Power of Helium and Hydrogen and Rigid Airship Operations


The atomic weight of a helium atom (4.002) is approximately four times that of an individual hydrogen atom (1.007), but since gaseous hydrogen is a diatomic ...

How many regular-sized helium-filled balloons would it take to lift ...


So if you have a balloon that contains 5 liters of helium, the balloon can lift 5 ... So you need roughly 4,000 balloons to lift yourself if you weigh 50 kilograms, and ...

Download a Printable Helium & Weight Chart - Balloons Everywhere


www.balloons.com. Balloon Type. Inflated. Diameter. Weight. Needed to Hold. Down One ... Gas capacity and balloons per helium tank figures are estimates.

36.39 -- Helium-filled balloon


Since the balloon would rise if released, this buoyant force must be greater than the weight of the helium-filled balloon. In other words, the weight of the ...

Popular Q&A
Q: What is the weight of helium?
A: Helium's atomic mass is 4.002602. Read More »
Source: wiki.answers.com
Q: What is The weight of helium.
A: Molecular helium weighs 4 grams per mole. Have a great day Read More »
Source: www.chacha.com
Q: What's the atomic weight of helium?
A: Atomic Weight of helium is 4.002602! Read More »
Source: www.chacha.com
Q: What is the molecular weight of Helium?
A: Helium has 2 protons and 2 neutrons, so the answer is 4. Read More »
Source: wiki.answers.com
Q: What is the weight of carbon dioxide, helium and air?
A: the densities can change considerably with changes in temperature & pressure, CO2: 1.977 g/L (gas at STP) http://en.wikipedia.org/wiki/Co2 He: 0.1786 g/L (gas @... Read More »
Source: answers.yahoo.com