Question

in a compound carbon and oxygen react in ratio of 3 is to 8 by mass to form carbon dioxide what mass of oxygen is required to react completely with 9 gram of carbon​

Answer 1

Explanation:

Carbon and oxygen combine together to form co2

The ratio of their combination is 3:8

Now,

Let the mass be x

So,

The ratio of the combination will be 3x: 8x

Now,

Mass of oxygen is given as 32 grams

So,

8x = 32

Or,

x = 32/8 = 4 grams

So,

The mass of carbon to react with 32 grams of oxygen is 3x

So,

3x = 3*4

Or,

3x = 12 grams

Therefore, 12 grams of carbon will react completely with 32 grams of oxygen.