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yulyashka [42]
3 years ago
7

3. How many atoms in 3.91 moles of sodium?

Chemistry
1 answer:
Gala2k [10]3 years ago
3 0

Answer:

Explanation:

The formula for sodium is Na. It does not form a molecule in some way.

1 mol Na = 6.02*10^23 atoms

3.91 mol = x                                    Cross multiply

x = 3.91 * 6.02 * 10^23

x = 23.65 * 10^23

x = 2.365 * 10^24

Scientific notation is always expressed as a number 1 ≤ x < 10

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