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Chemistry

Answered

What mass of oxygen combines with 2.81 mol
of magnesium in the reaction
2 Mg(s) + O2(g) → 2 MgO(s)?

Answer :

IStalingradgo IStalingradgo

Answer: 22.48 g

Reason: Because Mg reacts with O2 in a 2:1 ratio you would divide 2.81 by two. 2.81/2=1.405 You would then multiply 1.405 by the molar mass of O2 which is 15.999 and get the final answer of 22.48 g.

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