What is the mass of 2 mole of helium atoms?

How many atoms are in 2 moles of helium?

If I fill up a balloon with 2 moles of helium atoms, how many helium atoms would be in the balloon? If 1 mole of atoms is 6.02 x 1023 atoms, then 2 moles of atoms would be equal to 1.20 x 1024 atoms.

What is the mass of 2 moles?

Just multiply 2 by 31.9988 g because there are two moles of oxygen. So, the answer is 63.9976 g ..

What is the mass of 0.5 moles of helium atoms?

On solving, we get the value of mass of helium gas. Hence, the 2g mass of helium gas is present in 0.5moles.

How many atoms are in 4 moles helium?

– So, the no of atoms in 4 moles of helium is 2.4088 × 10²⁴.

How many atoms are in 2 moles?

If we have 2 mol of Na atoms, we have 2 × (6.022 × 10 23) Na atoms, or 1.2044 × 10 24 Na atoms.

What is the average mass in grams of one helium?

The mass of one helium atom is 6.6×1024 g.

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What is the mass in grams of one atom of HE 4?

The total spin of the helium-4 nucleus is an integer (zero), and therefore it is a boson (as are neutral atoms of helium-4).


Half-life stable
Isotope mass 4.002603254 u
Binding energy 28295.7 keV

What is the mass in grams of 2.5 mol of oxygen atoms?

=2.5×16= 40g.

What is the mass of 2 mole of water?

One mole of H2 O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol. Mass of one mole of water = 2 g/mol + 16 g/mol = 18 g/mol.

How do you find the mass of 4 moles of helium?

The total mass of four moles of helium (He) is 16.0104 grams. Helium has an atomic mass of 4.0026 atomic mass units, which is the average mass of…

How many moles is 80 grams of calcium?

Here, it is given that the weight of calcium is $80g$ and the atomic mass of calcium is $40u$ . where, $n$ is the number of moles of calcium, $W$ is the weight of calcium and $M$ is the molar mass of calcium. Therefore, the number of moles present in $80g$ of calcium is $2,mol$ .