Calculating with Simple Mixtures - A

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Problem

Qualitative analysis indicates that a chemical compound contains only the elements potassium and sulfur. A quantitative analysis indicates that this compound is 32.8 percent potassium by mass. In theory, all of the sulfur in a give sample of this compound could be isolated by appropriate chemical transformations. If these chemical transformations are carried out perfectly, what mass of  sulfur in grams would be isolated from 26.4 grams of this compound? HINT: Please note the importance of the bold-underlined text in this question.