Respuesta :

10.8 moles are present in 6.5 × 10²⁴ atoms of Barium (Ba). Details on how to calculate number of moles can be found below.

How to calculate number of moles?

The number of moles of a substance can be calculated by dividing the number of atoms in the substance by Avogadro's number.

According to this question, 6.5 × 10²⁴ atoms of Ba are present, the number of moles is calculated thus:

no of moles = 6.5 × 10²⁴ ÷ 6.02 × 10²³

no of moles = 1.08 × 10¹

no of moles = 10.8moles

Therefore, 10.8 moles are present in 6.5 × 10²⁴ atoms of Barium (Ba).

Learn more about no of moles at: https://brainly.com/question/26416088

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