Question

3. If 2.17g of sodium oxide are thermally decomposed to sodium and
oxygen.
a. What mass of sodium will be produced?
b. How many oxygen molecules will be produced?

Answer 1

Answer:

a. 1.61g Na produced

b.1.05 × 10^22 molecules of O2 produced

Explanation:

2Na2O gives 4Na + O2

1. 124g Na2O yields 4× 23g of O2

so,2.17g will yield 1.61g O2

2. 124g Na2O yields 6.022×10^23 molecules of O2

so, 2.17g Na2O will yield 1.05× 10^22 molecules of O2