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Answer: The mass of 1 mole of helium gas can be estimated using the mass, moles, and atomic mass of the helium gas relationship. Remember that the relationship between these quantities is that moles equals mass divided by molar mass. The formula is as follows:
Moles = MassMolar mass
We have supplied the moles of helium gas and the atomic mass of helium gas, which are one and four u respectively, in the following question. The mass of helium gas must be calculated. We can compute the mass of helium gas using the method above. The mass of helium gas must be calculated. We may compute the mass of helium gas in kg/mol using the formula above.
The mass of an atom in a given substance is known as its atomic mass. Atomic mass is also defined as the total number of neutrons and protons present in an atom. Helium is a chemical element that exists as an inert gas or noble gas. It’s an odorless, tasteless, and colourless gas. By inserting shields or arc welding, helium gas is utilised to pressurise liquid-fuelled rocket fuel tanks in supersonic wind tunnels.
Moles = MassMolar mass
By putting in the value of a given quantity, we get the value of mass.
1 = Mass4 = 4 g/mol
Therefore, the mass of helium gas is 4 g/mol
Now we have to convert grams into kilograms; So the molar mass of helium is 4 10-3kg/mol
Atomic weight, also known as relative atomic mass, is the ratio of a chemical element’s atoms’ average mass to a reference mass. Since 1961, one-twelfth the mass of an atom of the isotope carbon-12 has been the standard unit of atomic mass.
Isotopes are chemical elements that have two or more species of atoms with distinct atomic mass numbers (protons + neutrons). The average atomic weight of helium is 4.002602, which represents the natural abundance ratios of its isotopes.
Atomic mass units (amu), often known as daltons, are used to quantify atomic weight. A list of chemical elements and their atomic weights can be found below.)
