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# How many atoms are there in 2.50 mol of hydrogen?

Updated: 8/10/2023 Wiki User

7y ago

For this problem you don't need the Atomic Mass of the element. If you want to convert moles to atoms, you need to take the number of moles and multiply it by Avogadro's constant, 6.02 Ã— 1023. Divide by one mole for units to cancel.

2.50 moles H Ã— (6.02 Ã— 1023 atoms) = 1.51 Ã—1024 atoms H Wiki User

14y ago   Wiki User

7y ago

If you mean in 2.5 moles of the element H, then it will be 2.5 moles H x 6.02x10^23 atoms/mole = 1.5x10^24 atoms. If you mean 2.50 moles of hydrogen gas (H2), then it will be twice that or 3x10^24 atoms.   Wiki User

9y ago

2.5 mol of uranium = 2,5 x Avogadro's number = 15,055354475.1023 atoms   Wiki User

11y ago

1 mole atoms U = 6.022 x 1023 atoms

2.50mol U x 6.022 x 1023 atoms/1mol = 1.51 x 1024 atoms U   Wiki User

12y ago

2.50 mole of H2 contains 5.0 moles of hydrogen atoms (H),

which are 5.0 * 6.02*10+23 atoms (particles) = 3.0*1024 atoms H   Wiki User

13y ago

2.5 moles Ã— (6.02 Ã— 1023) = 1.51 Ã— 1024 atoms   Wiki User

13y ago

15,055354475.1023 uranium atoms   Wiki User

14y ago

If 2,5 is grams: 6,325.1021 atoms.   Earn +20 pts  