Asample of chemical x is found to contain 5.0 grams of oxygen, 10.0 grams of carbon, and 20.0 grams of nitrogen. the law of definite proportion would predict that a 61 gram sample of chemical x should contain how many grams of carbon? 17 grams

The law of definite proportion asserts that the proportions of each element in relation to its weight will constantly be the exact value in a chemical combination, regardless of the amount or source.

In the given question:

The sample of chemical X has:

The total mass number of the compound =  (10.0 + 5.0 + 20.0) g

= 35.0 g

The fraction of Carbon in the compound is;

Thus, the mass of carbon (grams) in 61 grams of the sample is;

= 17.42 grams

≅ 17 grams

Therefore, we can conclude that a 61-gram sample of chemical x should contain 17 grams of carbon.

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the answer your looking for is c).