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zmey [24]
3 years ago
15

How many atoms are in 490 moles of barium?

Chemistry
1 answer:
Usimov [2.4K]3 years ago
4 0

Answer:

2.95 * 10^23 atoms

Explanation:

The number of atoms in a mole is always equal to <u>Avogadro's constant</u>, which is <u>6.02214076×10²³ mol⁻¹</u>.

To find the number of atoms in 0.490 moles of barium, multiply it with <u>Avogadro's constant</u>:

0.490 mol * 6.02214076×10²³ mol⁻¹ ≈ 2.9508 * 10^23

Convert to SigFigs (if necessary):

2.95 * 10^23

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