How many chloride ions are present in 0.100 mol of MgCl₂?

Question

Quizplus · Accepted Answer

According to the chemical formula of MgCl2, there are two chloride ions for every one MgCl2 compound. Therefore, in 0.100 mol of MgCl2, there are:

0.100 mol MgCl2 x 2 mol Cl- / 1 mol MgCl2 = 0.200 mol Cl-

Finally, we convert mol of Cl- to the number of ions using Avogadro's number:

0.200 mol Cl- x 6.022 x 10^23 ions/mol = 1.20 x 10^24 Cl- ions.

Therefore, the answer is (C) 1.20 × 10^24 Cl- ions.

How Many Chloride Ions Are Present in 0