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Answer to Question #136489 in General Chemistry for Javier

Question #136489
How many grams of O2 are needed in a reaction that produces 73.0 g Na2 O?
1
Expert's answer
2020-10-05T14:27:27-0400

4Na + O2 = 2Na2O

M (O2) = 32.00

M (Na2O) = 61.98

The ratio is:

32.00 x 73.0 / 2 x 61.98 =

= 18.8 (g) of O2

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