Answer to Question #90067 in General Chemistry for Kerlly

Question #90067

How many grams of sodium are needed to produce 3.90 moles of sodium oxide
____Na + ____O2 —-> ____Na2O

(both 2 are supposed to be smaller)

Expert's answer

4Na + O₂ = 2Na₂O

n(Na) = 3.9*4 / 2

n(Na) = 7.8 mole

m(Na) = 7.8*23 = 179.4 g

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