How many moles are 1.20 x 1025 formula units of calcium iodide?

Question

Erik Campos

Chemistry

7 September, 10:04

How many moles are 1.20 x 1025 formula units of calcium iodide?

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Answers (1)

Know the Answer?

Cash Joseph · Answer 1

19.9 mol

Explanation:

Use Avogadro's number to convert formula units of CaI₂ to moles of CaI₂.

1 mol CaI₂ ≡ 6.022 * 10²³ formula units CaI₂

Moles of CaI₂ = 1.20 * 10²⁵ * (1 / 6.022 * 10²³)

Moles of CaI₂ = 19.9 mol