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Question:
What percent of Zn3(PO4)2 is zinc?
Answer:
The percentage of zinc in the compound; Zn3(PO4)2 is 50.65%.
HOW TO CALCULATE PERCENTAGE?
The percentage of an element in a compound can be calculated by dividing the mass of that element in the compound by the atomic mass of the compound.
% Zinc = mass of Zn/molar mass of Zn3(PO4)2 × 100
The molar mass of Zn3(PO4)2 = 65(3) + {31 + 64}2 = 190 + 195 = 385g/mol
% Zn = 195/385 × 100
% Zn = 50.65%
Therefore, the percentage of zinc in the compound; Zn3(PO4)2 is 50.65%.
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