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kati45 [8]
2 years ago
15

How many moles of oxygen are needed to make 6.50 moles of magnesium oxide ?

Chemistry
2 answers:
Kay [80]2 years ago
8 0

Answer:

.15 grams of MgO / 40.3 = .0285 moles of MgO. For every mole of Magnesium Oxide, you have one mole of magnesium and one mole of oxygen, therefore,.0285 moles of MgO * (1 mole of magnesium/1 mole of magnesium oxide) = .0285 magnesium.0285 magnesium * (6.022 *10^23 atoms magnesium/1 mole of magnesium) = 1.718*10^22 atoms of magnesium

Explanation:

stepladder [879]2 years ago
5 0
2Mg + O2 -> 2MgO
6.50 mol
6.50 mol MgO x 1/2 = 3.25 mol O2
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