2Mg + O2 → 2MgO

If you are burning 5.8332 g of Mg, how many grams of MgO will this make?

9.6724 g MgO

Math

Pre-Algebra

Order of Operations: BPEMDAS

Chemistry

Stoichiometry

Step 1: Define

[RxN - Balanced] 2Mg + O₂ → 2MgO

[Given] 5.8332 g Mg

Step 2: Identify Conversions

[RxN] 2 mol Mg = 2 mol MgO

Molar Mass of Mg - 24.31 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of MgO - 24.31 + 16.00 = 40.31 g/mol

Step 3: Stoichiometry

Step 4: Check

Follow sig fig rules and round. We are given 5 sig figs.

9.67241 g MgO ≈ 9.6724 g MgO

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