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WARRIOR [948]
3 years ago
6

2MG+O2 ...........2MGO

Chemistry
1 answer:
Galina-37 [17]3 years ago
5 0
Mg + 1/2 O2 → MgO

1 mol = 24 g of Mg

X mol = 12 g of Mg

x = 0.5 moles of Mg

Mg :MgO = 1:1 (coefficient from equations using mole ratio)

So

0.5 moles of MgO

1 mol MgO = (24+16) g = 40 g

0.5 moles of MgO = 0.5 × 40

= 20 g of MgO produced
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What mass of oxygen is contained in a 5.8 g sample of NaHCO3?
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hope this helps!
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