Question

In a compound carbon and oxygen react in a ratio 3: 8 by mass to form
carbon dioxide. What mass of oxygen is required to react completely with 99
carbon?​

Answer 1

Answer:

264g of oxygen is needed.

Explanation:

For 3g of carbon, 8g of oxygen is needed;

For 1g of carbon, 8/3g of oxygen is needed;

For 99g of carbon, 99(8/3)g oxygen is needed

99×8/3=264