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4 grams.
Approximately, mass (in grams) of 1 mole of any chemical element is just the Atomic Mass of this element (4 - for He, 12 - for C, and so on). It follows from the definition of one mole - number of atoms in 12 g of C.
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What is the mass of six helium atoms?
32 g
What is the mass of 18.8 moles of helium (He) atoms?
1 mole of helium weighs 4.0026 g So. 18.8 of helium will weigh 75.25 g
Which sample contains the same number of atoms as a gram atomic mass of he?
A gram atomic mass of helium (He) contains the same number of atoms as 1 mole of helium. Since 1 mole of any substance contains approximately 6.022 x 10^23 atoms, a sample of helium with a gram atomic mass would contain that same number of atoms.
What is the mass of 1.5 moles of helium atoms?
The molar mass of helium is 4.0026 g/mol. Therefore, the mass of 1.5 moles of helium atoms would be 1.5 moles * 4.0026 g/mol = 6.004 g.
What has a greater mass 2 atoms of lead or 5.1 X 10-23 mole of helium?
The weight is greater for 2 atoms of lead.
What is the mass of six helium atoms?
32 g
What is the mass in grams of 3.40x10 22 atoms He?
To find the mass of 3.40x10^22 helium atoms, you need to know the molar mass of helium, which is 4.0026 g/mol. So, the mass of 3.40x10^22 helium atoms would be 3.40x10^22 atoms * (4.0026 g/mol/6.022x10^23 atoms/mol) ≈ 2.27 grams.
What is the mass of 18.8 moles of helium (He) atoms?
1 mole of helium weighs 4.0026 g So. 18.8 of helium will weigh 75.25 g
Does 1 mole of hydrogen atoms equals 1 mole of helium atoms?
No, 1 mole of hydrogen atoms does not equal 1 mole of helium atoms. One mole of any element contains Avogadro's number of atoms (6.022 x 10^23), so 1 mole of hydrogen atoms would have that many hydrogen atoms, while 1 mole of helium atoms would have that many helium atoms.
Explain why a mole of iron atoms has more mass than a mole of helium atoms when there are the same number of atoms in a mole of each element?
Iron atoms are heavier than helium atoms because they have more protons, neutrons, and electrons, resulting in a higher atomic mass. This difference in atomic mass leads to a difference in the overall mass of a mole of each element, even though both moles contain the same number of atoms.
What is the mass of one mole atoms?
The mass of one mole of atoms is equal to the atomic mass of the element expressed in grams. This is known as the molar mass. For example, the molar mass of carbon (C) is 12 grams per mole, of oxygen (O) is 16 grams per mole, and so on.
Which sample contains the same number of atoms as a gram atomic mass of he?
A gram atomic mass of helium (He) contains the same number of atoms as 1 mole of helium. Since 1 mole of any substance contains approximately 6.022 x 10^23 atoms, a sample of helium with a gram atomic mass would contain that same number of atoms.
What is the mass of 1.5 moles of helium atoms?
The molar mass of helium is 4.0026 g/mol. Therefore, the mass of 1.5 moles of helium atoms would be 1.5 moles * 4.0026 g/mol = 6.004 g.
What has a greater mass 2 atoms of lead or 5.1 X 10-23 mole of helium?
The weight is greater for 2 atoms of lead.
Is a 16.00-g sample of oxygen atoms contains the same number of particles as a 4.003-g sample of He atoms?
No, the number of atoms in a sample is determined by Avogadro's constant (6.022 x 10^23). Therefore, the 16.00-g sample of oxygen atoms will contain more particles than the 4.003-g sample of He atoms, as oxygen atoms are heavier than helium atoms and have a larger atomic mass.
Does a mole of carbon atoms have three times greater then helium?
No, a mole of carbon atoms has the same number of atoms as a mole of helium atoms (Avogadro's number, which is about 6.022 x 10^23 atoms). The difference lies in their atomic masses, as carbon atoms are heavier than helium atoms.
What is the mass of 18.8 moles of helium atoms?
The molar mass of helium is approximately 4.0026 g/mol. Therefore, the mass of 18.8 moles of helium atoms would be 18.8 moles * 4.0026 g/mol ≈ 75.2 grams.
