105 g of MgCl₂ contains ________ mol MgCl₂.

Name: 105 g of MgCl 2 contains ________ mol MgCl 2 .
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Question

Quizplus · Accepted Answer

To find the number of moles of MgCl₂, we need to divide the given mass by the molar mass of MgCl₂. The molar mass of MgCl₂ is Mg (24.3 g/mol) + Cl (35.5 g/mol) + ₂ (96.5 g/mol) = 156.3 g/mol. Moles of MgCl₂ = mass of MgCl₂/molar mass of MgCl₂ = 105 g/156.3 g/mol = 0.671 mol Therefore, the answer is C) 1.10 mol (rounded to two decimal places).

105 G of MgCl2 Contains ________ Mol MgCl2

105 G of MgCl₂ Contains ________ Mol MgCl₂