How many chloride ions are there in 4.50 mol of aluminum chloride?

Name: How many chloride ions are there in 4.50 mol of aluminum chloride?
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Question

Quizplus · Accepted Answer

Aluminum chloride (AlCl₃) contains 3 chloride ions per formula unit. Therefore, 4.50 mol of AlCl₃ contains 4.50 mol × 3 = 13.5 mol of chloride ions. Using Avogadro's number (6.022 × 10²³), the number of chloride ions is 13.5 mol × 6.022 × 10²³ ions/mol = 8.13 × 10²⁴ chloride ions.

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