When 3.00 g of carbon is burnt in 8,00 g of oxygen, 11.00 g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00 g of carbon is burnt in 50.00 g of oxygen? Which law of chemical combination will govern your answer ?

Explanation

`"Carbon + Oxygen" to "Carbon dioxide"`
`C + O_(2) to CO_(2)`
`12g + 32 g to 44 g`
`:.` 3g of carbon burns in 8 g of oxygen producing 11 g of carbon dioxide.
So, when there is 3.00 g of carbon and 50.00 g of oxygen, then also only 8g of oxygen will be used forming 11.0 g of carbon dioxide.
42 g of oxygen (50 g-8g) will remain unused.
The answer is governed by the law of constant proportion.