Geffkendroid
Answered

the percent by mass of the element in a compound is the mass in grams of the element divided by the grams of the compound and then multiplied by 100​

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Joshuaretomaid

Answer:

To calculate the mass percent of an element in a compound, we divide the mass of the element in 1 mole of the compound by the compound's molar mass and multiply the result by 100.

Explanation: