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What would be the mass in grams of 0.100 moles of the ionic compound formed when magnesium metal reacts with oxygen?
Accepted Answer
The ionic compound formed when magnesium metal reacts with oxygen is magnesium oxide (MgO). To calculate the mass, we need the molar mass of MgO.
MgO's molar mass is approximately 24.31 g/mol (Mg) + 16.00 g/mol (O) = 40.31 g/mol.
Therefore, the mass of 0.100 moles of MgO is:
0.100 mol MgO
40.31 g/mol = 4.03 grams.
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