How many atoms in 5.80 moles of He?

Answer 1

5 moles of helium He atoms is equivalent to 20,013 g.

Answer 2

5 moles of helium He atoms is equivalent to 20,013 g.

Answer 3

5 moles of helium He atoms is equivalent to 20,013 g.

Answer 4

He is a monatomic element (each molecule contains only one atom). One mole of any substance contains Avogadro's number (L) of molecules, equal to ~6.022 x1023. Therefore, there are ~6.022 x1023 atoms of He in one mole.

Answer 5

Avogadro's number states that 1 mole = 6.022 x 1023 atoms. Therefore, 5.80 mol ( 6.022 x 1023) = 3.49 x 1024 atoms.

Answer 6

Atoms: = moles x Avagadro's number (the number of atoms in one mole)

Atoms: = 5.89(6.02)(1023)

Atoms: = 3.54578(10 24)

Answer 7

1 mole He = 6.022 x 1023 molecules He

7.40mol He x (6.022 x 1023molecules/mol = 4.46 x 1024 molecules He

Answer 8

1 mole He = 4 g He

5 moles of He = 20 g of He

Answer 9

34,326 208 203.1023 atoms

Answer 10

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