A sample of a compound used to polish dentures and as a nutrient and dietary supplement is analyzed and found to contain 9.0231 g of calcium, 6.9722 g of phosphorus, and 12.6072 g of oxygen. What is the empirical formula for this compound

Explanation:

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In this case, since the determination of empirical formulas requires the moles of the constituents, we first need to calculate the moles in the given grams of the listed elements:

Next, we divide each moles by the fewest moles, in this case, those of phosphorous, in order to determine their subscripts in the empirical formula:

Thus, we multiply these subscripts by 5 to get whole numbers:

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answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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