Essential Chemistry for IGCSE - Chemical Calculations (Section 1 - No. 10)
Which of the following is a method for finding the mass of an element in a compound?
Multiply the relative atomic mass of the element by the number of atoms present.
Divide by the relative molecular mass of the compound.
Calculate the percentage by mass of the element in the compound.
Use the mole ratio in a balanced chemical equation.
Explanation
The relative atomic mass is multiplied by the number of atoms to determine the mass of an element in a compound. Percentage by mass also gives the mass of the element.
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