SOLUTION: The container held the compound (As) sub four O sub 6 and What was the percentage by weight of the Arsenic in this compound (As, 75;O,16)

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Question 1033113: The container held the compound (As) sub four O sub 6
and What was the percentage by weight of the Arsenic in this compound (As, 75;O,16)

Answer by KMST(5328)   (Show Source): You can put this solution on YOUR website!
The formula of the compound is , meaning that a molecule or formula unit comprises atoms of , and atoms of .
The mass of the atoms of ,
each with a mass of atomic mass units, adds up to
.
The mass of the atoms of ,
each with a mass of atomic mass units, adds up to
.
The total mass of the molecule is atomic mass units,
and out of that total, the mass of the arsenic is
atomic mass units.
As a fraction, that is
(rounding to whole numbers, or 2 significant figures, as a chemistry teacher might say).

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