Answer :
Final answer:
The subject is about stoichiometry. It asks us to calculate the mass of sulfur in a CaSO4 sample. The mass of sulfur in a 51.7 g sample of CaSO4 is found to be 12.15 grams.
Explanation:
The subject in question relates to stoichiometry, which is a study within the framework of chemistry. It focuses on the relationship between the quantities of substances involved in chemical reactions.
In our sample, we have 12.3 g CaSO4 that includes 3.62 grams of Calcium (Ca), and 5.78 grams of Oxygen (O). We want to find the mass of Sulfur (S) in this mix, subsequently, we have to subtract the mass of Ca and O from the total mass (12.3g). The mass of the sulfur in the CaSO4 would be 12.3g - (3.62g Ca + 5.78g O) = 2.9g.
Now, imagining that we know the mass percentages of all elements in CaSO4. To find out the mass of the sulfur in a 51.7 g sample of CaSO4, we need to multiply the total mass of our sample by the fraction of its mass that is sulfur.
Thus, the mass of sulfur in a 51.7 g sample of CaSO4 would be 51.7g * (2.9g S / 12.3g CaSO4) = 12.15 g S.
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