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  3.   1. a sample of a compound has a mass of 4.86

  1. A sample of a compound has a mass of 4.86 g and is composed...

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Chemistry

 

1. A sample of a compound has a mass of 4.86 g and is composed of Silicon and Oxygen. What is the percent composition if 2.27 g of the mass is Silicon?

2. What is the percent composition of all of the elements in saccharin (C7H5SNO3)?

3. What is the mass of phosphorus in a 25.0lb quantity of sodium phosphate?

Answer & Explanation Solved by verified expert
4.4 Ratings (1038 Votes)
1 Total mass of the compound 486 g Mass of silicon in that compound 227 g Percent composition of silicon Mass of silicon Mass of compound x 100 227 486 x 100 467 Thus the percent composition of silicon 467 2 Given molecular formula of Saccharin C7H5SNO3 The molar mass of Saccharin 183 gmol Percent composition of Carbon The    See Answer
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