Concept explainers
Interpretation:
The mass of the unknown sample of compound is 25.3 g. The mass of oxygen present in it is 0.8 g. The mass percent of oxygen needs to be determined.
Concept introduction:
For any compound, the mass percent of any element present in it can be calculated as follows:
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Answer to Problem 74A
3.16%.
Explanation of Solution
The mass of the unknown compound is 25.3 g and the mass of oxygen present in it is 0.8 g.
The mass percent of oxygen in the compound can be calculated as follows:
Putting the values,
Thus, the mass percent of O is 3.16%.
Chapter 3 Solutions
Chemistry: Matter and Change
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