Answer to Question #136489 in General Chemistry for Javier

Question

How many grams of O2 are needed in a reaction that produces 73.0 g Na2 O?

Answer 1

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