Question

carbon and oxygen combine in the ratio 3 is to 8 to form a co2 . what mass of oxygen react would react with 5 gram of carbon

Answer 1

The ratio of their combination is 3:8

Now,

Let the mass be x

So,

The ratio of combination will be 3x : 8x

Now,

Mass of oxygen is given as 32 grams

So

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 gram of oxygen.

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