Question
5. A 1.000 g sample of an alloy containing only Mg and Al was reacted with dilute
sulfuric acid and the hydrogen evolved was collected over mercury. 1.060 L of
hydrogen was obtained at STP. What was the percentage of Mg in the alloy?
(Both metals react with sulfuric acid.)
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Transcribed Image Text

5. A 1.000 g sample of an alloy containing only Mg and Al was reacted with dilute sulfuric acid and the hydrogen evolved was collected over mercury. 1.060 L of hydrogen was obtained at STP. What was the percentage of Mg in the alloy? (Both metals react with sulfuric acid.)