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How many grams of metal oxide could be produced from 7.461 g of magnesium?

Answer 1

Luna Chen

#2Mg+O_2->2MgO#

7.416g Mg /24.305 g/mol Mg = 0.3051 mol Mg

#1 mol Mg: 1 mol MgO#

0.305 mol MgO * 40.304 g/mol MgO = 12.2972 g MgO, 4 significant figures

12.30 g Mg

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Answer 2

Cooper Anderson

The molar mass of magnesium is 24.31 g/mol, and the molar mass of oxygen is 16.00 g/mol. The molecular formula for magnesium oxide is MgO. Therefore, the molar mass of MgO is 40.31 g/mol. Using stoichiometry, the mass of magnesium oxide produced from 7.461 g of magnesium is approximately 12.382 g.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.