Question

How many moles of argon are in 1.806 x 1024 atoms of argon?
O A. 0.3 moles
O B. 1.0 mole
O C. 3.0 moles
D. 30 moles

Answer 1

Answer:

3 mol Ar.

Explanation:

Divide 1.806 x 10²⁴ atoms of Ar with Avogadro's Number to find the solution.

Answer 2

The number of moles of argon is 1.806 x 1024 atoms of argon is option  C. 3.0 moles.

How many moles of argon is in 1.806 x 1024 atoms of argon?

• By dividing 1.806 x 10²⁴ atoms of Ar with Avogadro's number we can get the answer.
• Avogadro's number is the number of atoms or molecules in one mole of a substance, equal to 6.023 × 1023.
• The Avogadro’s number represents the number of atoms that exist in twelve grams of carbon-12. This number represents a quantity without an associated physical dimension, so it is considered a pure number to describe a physical characteristic without dimension or explicit unit of expression.

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